Why... why... why..., Delilah?

Why... why... why..., Delilah?

Joined: May 17th, 2008, 5:05 am

June 27th, 2008, 11:33 pm #1

I replaced the old distributor cap and rotor with new ones and I got near normal idling (slightly uneven) and normal high speed on flat highway but when going up an incline, the car struggles and makes a series of small lurches (misfires?). I checked the ignition timing, point gap and plugs gap and everything is within specs but the car still lacked power and made many lurches going uphill. I put back the old distributor and rotor and the car is smooth again!

Something apparently is wrong with the new cap and rotor. Visual inspection found nothing suspicious but I notice that my old cap has all five “fingers” on one row to a side whereas the new one’s fingers are also sideway but arranged like the 5 spots on the dice. The new rotor also has a shorter tip. I’m reusing the old cap and rotor and the car is running well and responsive but I want to know why I have problems with the new ones. Any idea?

Thanks
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Steven Lawson
Steven Lawson

June 27th, 2008, 11:38 pm #2

Does sound like a weak spark that falters under load. You say the rotor is shorter than the old one? If the cap is designed for the longer rotor, then the spark is having to jump a larger gap from the rotor to the cap.
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Joined: August 6th, 2005, 6:03 pm

June 28th, 2008, 1:07 am #3

I replaced the old distributor cap and rotor with new ones and I got near normal idling (slightly uneven) and normal high speed on flat highway but when going up an incline, the car struggles and makes a series of small lurches (misfires?). I checked the ignition timing, point gap and plugs gap and everything is within specs but the car still lacked power and made many lurches going uphill. I put back the old distributor and rotor and the car is smooth again!

Something apparently is wrong with the new cap and rotor. Visual inspection found nothing suspicious but I notice that my old cap has all five “fingers” on one row to a side whereas the new one’s fingers are also sideway but arranged like the 5 spots on the dice. The new rotor also has a shorter tip. I’m reusing the old cap and rotor and the car is running well and responsive but I want to know why I have problems with the new ones. Any idea?

Thanks
the "5 flat" was used on the 1300, and the "5 staggered" was used on the 1500.



From the glass lined tanks of old Bertone
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Duane K Estill (Corinth, Mississippi)
Duane K Estill (Corinth, Mississippi)

June 28th, 2008, 2:57 am #4

I replaced the old distributor cap and rotor with new ones and I got near normal idling (slightly uneven) and normal high speed on flat highway but when going up an incline, the car struggles and makes a series of small lurches (misfires?). I checked the ignition timing, point gap and plugs gap and everything is within specs but the car still lacked power and made many lurches going uphill. I put back the old distributor and rotor and the car is smooth again!

Something apparently is wrong with the new cap and rotor. Visual inspection found nothing suspicious but I notice that my old cap has all five “fingers” on one row to a side whereas the new one’s fingers are also sideway but arranged like the 5 spots on the dice. The new rotor also has a shorter tip. I’m reusing the old cap and rotor and the car is running well and responsive but I want to know why I have problems with the new ones. Any idea?

Thanks
...........
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Joined: December 21st, 2004, 3:04 am

June 28th, 2008, 3:21 am #5

I replaced the old distributor cap and rotor with new ones and I got near normal idling (slightly uneven) and normal high speed on flat highway but when going up an incline, the car struggles and makes a series of small lurches (misfires?). I checked the ignition timing, point gap and plugs gap and everything is within specs but the car still lacked power and made many lurches going uphill. I put back the old distributor and rotor and the car is smooth again!

Something apparently is wrong with the new cap and rotor. Visual inspection found nothing suspicious but I notice that my old cap has all five “fingers” on one row to a side whereas the new one’s fingers are also sideway but arranged like the 5 spots on the dice. The new rotor also has a shorter tip. I’m reusing the old cap and rotor and the car is running well and responsive but I want to know why I have problems with the new ones. Any idea?

Thanks
... to the old cap.

THIS IS JUST A WILD GUESS!  But its your WIERD question... I've not heard of such a thing before.

Can you provide us some photos?

Which one of our RESPECTED suppliers in the Best Of section sold you this cap and rotor... (loaded question here...)

Hope the answer is something simple... like you inadvertantly mis-wired the new cap...

 


My best,



Tony
Black Tooth and me... since 1983!
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Last edited by Black-Tooth on June 28th, 2008, 3:22 am, edited 1 time in total.
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Joined: May 17th, 2008, 5:05 am

June 28th, 2008, 4:51 am #6

...........
Tom Jones’ woman:
http://youtube.com/watch?v=sI5LWwC-cE8
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Joined: May 17th, 2008, 5:05 am

June 28th, 2008, 4:53 am #7

... to the old cap.

THIS IS JUST A WILD GUESS!&nbsp; But its your WIERD question... I've not heard of such a thing before.

Can you provide us some photos?

Which one of our RESPECTED suppliers in the Best Of section sold you this cap and rotor... (loaded question here...)

Hope the answer is something simple... like you inadvertantly mis-wired the new cap...

&nbsp;


My best,



Tony
Black Tooth and me... since 1983!
<A href="http://i46.photobucket.com/albums/f108/ ... gFixed.jpg " target=_blank>
<IMG src="http://i46.photobucket.com/albums/f108/ ... gFixed.jpg " ;></A>
<FONT size=1 Roman? Bew face_?Times>Disclaimer: This message does not necessarily reflect the views of the sender, or, for that matter, any other carbon-based life form; Any resemblance to actual persons, living or dead, is unintentional and coincidental; All models are 18 years of age or older; Dry clean only, do not use bleach, Tumble dry and remove immediately; Do not bend, fold, staple or mutilate; Anchovies, cheese or jalapenos may be added to orders upon request for an additional charge; Professional driver on a closed course, do not attempt to duplicate; Your actual mileage may vary; No substitutions are allowed; Available for a limited time only while supplies last; Offers are void where prohibited by law; Humor is provided "as is" without any warranties expressed or implied; The user assumes full liabilities and originator is not liable for damages due to use or misuse; We are an equal opportunity employer, with no regard to race, religion, sex, or sexual preference; No shoes, no shirt, no service; Read at your own risk; This post may contain material some may find to be objectionable; Parental advisory: Explicit lyrics; keep away from pets and small children; limit one-per-family please; No money down; No purchase necessary; Ask us about our guns-for-dope trade-in plan; You need not be present to win; Some assembly required; Batteries not included; Action figures sold separately; Contents were packed full at the factory, but may have settled during shipping; Peanuts and peanut products are produced in this establishment and also consumed by the author; Sanitized and sealed for your protection; Do not use if safety seal is broken; Do not use while operating a motor vehicle or heavy equipment; Safety goggles may be required during use; Use gloves when handling; Call before you dig; Use only with proper ventilation; For external use only, if a swelling, redness, rash, or irritation develops, discontinue use; Do not place near a flammable or magnetic source; Keep away from open flames; Avoid inhaling fumes or contact with mucous membranes; Contents under pressure, may explode if incinerated; Smoking may be hazardous to your health; No smoking allowed, except in designated areas; The best safeguard, second only to abstinence, is the use of a good laugh; Text is made from 100% recycled electrons and magnetic particles; No animals were harmed while writing this post; No salt, MSG, preservatives, artificial color or flavor added; If ingested, do not induce vomiting, If symptoms persist, consult a comedian; Ribbed for your pleasure, slippery when wet; Must be 18 to enter; No one under 21 allowed; We check IDs to age 40; Seniors Welcome; Ask for our Senior Menu; Present discount coupons to cashier before totaling; An 18% gratuity will be added to the total for parties of 8 or more; We reserve the right to refuse service to anyone. Return all carts to the store; No dogs allowed, except for the visually impaired; Penalties for early withdrawal, one size fits all; Offer is valid only at participating sites; Prices slightly higher west of the Rockies; Allow four to six weeks for delivery; If defects are found, do not attempt a repair, return to an authorized service center; Please remain seated until the vehicle has come to a complete stop; Objects in the mirror may be closer than they appear; Fasten seat belts; In the unlikely event of a loss of cabin pressure, oxygen masks will fall from above, cover your face first, then assist those around you. Your seat cushion may be used as a floatation device. This disclaimer is invalid in the event of hurricanes, floods, earthquakes, sonic booms, vibration, electromagnetic radiation from nuclear blasts or any other act of war, unauthorized repair, improper installation, misuse, typos, misspelled words, missing or altered signatures, and incidents owing to computer or disk failure, accidental file deletions, and Acts of God. Other restrictions may, or may not apply.</FONT>
Hi Tony,

Vick sold me those. I wouldn’t want to return them since the return shipping cost is probably equal or more than the cost of these 2 items!
What locating pin? There are 2 clips on the dizzy body to clip on the cap and the cap seems to fit well. Maybe as Damon said, the difference is 1300 v. 1500 but who would have thought it also makes a difference in the car performance!
Sorry, I haven’t bought a digital camera yet but I copy some pics from Vick Autoports.

My old rotor looks like this:
[/img]
The new rotor looks like this:
[/img]

My old cap looks like this, though not exactly. Only the 5 "fingers" are like that. This one is for the Spider
[/img]
The new cap is this one:
[/img]
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Joined: May 17th, 2008, 5:05 am

June 28th, 2008, 4:55 am #8

Does sound like a weak spark that falters under load. You say the rotor is shorter than the old one? If the cap is designed for the longer rotor, then the spark is having to jump a larger gap from the rotor to the cap.
I use a new set of cap and rotor, so they go together. Not likely it's a mismatch but I see your point. Thanks
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George
George

June 28th, 2008, 12:42 pm #9

I replaced the old distributor cap and rotor with new ones and I got near normal idling (slightly uneven) and normal high speed on flat highway but when going up an incline, the car struggles and makes a series of small lurches (misfires?). I checked the ignition timing, point gap and plugs gap and everything is within specs but the car still lacked power and made many lurches going uphill. I put back the old distributor and rotor and the car is smooth again!

Something apparently is wrong with the new cap and rotor. Visual inspection found nothing suspicious but I notice that my old cap has all five “fingers” on one row to a side whereas the new one’s fingers are also sideway but arranged like the 5 spots on the dice. The new rotor also has a shorter tip. I’m reusing the old cap and rotor and the car is running well and responsive but I want to know why I have problems with the new ones. Any idea?

Thanks
My car has a similar problem when the vacuum line is hooked to the dist. When it is disconnected the car runs fine, winds up smooth, but does not get quite up to 30 degrees full advance with just the centrifigal advance. With the vacuum line hooked up it goes to full advance as soon as it is off idle, and the car spits and sputters until it get over 4000 rpm then it is fine. So right now the vacuum advance is disconnected and the timing is set at 10 degrees. Oh yeah, I checked to see if the return spring is weak on the vacuum advance, and it does not appear to be.

So, if you disconnect your vacuum advance how does it run? If it runs smooth, then I will know to check out my cap and rotor, perhaps that is the problem with mine. Mine is a totally stock carbureted '80 model, and for now I would like everything to work as designed. Perhaps later I'll strip all the emission stuff off.
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Joined: December 21st, 2004, 3:04 am

June 28th, 2008, 2:16 pm #10

Hi Tony,

Vick sold me those. I wouldn’t want to return them since the return shipping cost is probably equal or more than the cost of these 2 items!
What locating pin? There are 2 clips on the dizzy body to clip on the cap and the cap seems to fit well. Maybe as Damon said, the difference is 1300 v. 1500 but who would have thought it also makes a difference in the car performance!
Sorry, I haven’t bought a digital camera yet but I copy some pics from Vick Autoports.

My old rotor looks like this:
[/img]
The new rotor looks like this:
[/img]

My old cap looks like this, though not exactly. Only the 5 "fingers" are like that. This one is for the Spider
[/img]
The new cap is this one:
[/img]
You said:

<EM>"Vick sold me those. I wouldn’t want to return them since the return shipping cost is probably equal or more than the cost of these 2 items!"</EM>

I would think that if they shipped the wrong items, they should cover the return shipping costs.&nbsp; Only if you ASKED for the wrong items, would it be your responsibility.&nbsp; (i.e.&nbsp; you asked for BLUE, they sent you RED.)

<EM>What locating pin? There are 2 clips on the dizzy body to clip on the cap and the cap seems to fit well.</EM>

Its been so long since I looked at MY particular cap... but many caps on all sorts of cars have a locating or index &nbsp;"pin" that fits in a NOTCH on the perimeter of the dizzy so that it "locates" itself in the "proper" position each time its installed.&nbsp; Granted, with the clips and all, I doubt you could miss-align it by much, but it could be installed cocked or maybe as much as 5 degres retarded.

<EM>Maybe as Damon said, the difference is 1300 v. 1500 but who would have thought it also makes a difference in the car performance!</EM>

I would tend to agree.&nbsp; BTW... my cap on my 1500 looks like your NEW cap... I can't remember what the rotor looks like... but as long as it FITS and points in the SAME direction as the other... I can't see how this would be a problem either.

<EM>Sorry, I haven’t bought a digital camera yet but I copy some pics from Vick Autoports.</EM>

Vicks has been around for some time and with all that time, they've had the opportunity to be great and to also fail in some respects.&nbsp; I've had good luck with them, as with most all the suppliers on that list.&nbsp; What do they say about this?&nbsp; I'd certainly give them a call... or at least copy this post and send it to them.&nbsp; Tell them what you are experiencing and show them the differences in the parts.

Let us know.&nbsp; By the way... you did indeed verify the wiring and firing order, at least TWICE, right?


My best,



Tony
Black Tooth and me... since 1983!
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<font face_"Times Bew Roman" size=1>Disclaimer: This message does not necessarily reflect the views of the sender, or, for that matter, any other carbon-based life form; Any resemblance to actual persons, living or dead, is unintentional and coincidental; All models are 18 years of age or older; Dry clean only, do not use bleach, Tumble dry and remove immediately; Do not bend, fold, staple or mutilate; Anchovies, cheese or jalapenos may be added to orders upon request for an additional charge; Professional driver on a closed course, do not attempt to duplicate; Your actual mileage may vary; No substitutions are allowed; Available for a limited time only while supplies last; Offers are void where prohibited by law; Humor is provided "as is" without any warranties expressed or implied; The user assumes full liabilities and originator is not liable for damages due to use or misuse; We are an equal opportunity employer, with no regard to race, religion, sex, or sexual preference; No shoes, no shirt, no service; Read at your own risk; This post may contain material some may find to be objectionable; Parental advisory: Explicit lyrics; keep away from pets and small children; limit one-per-family please; No money down; No purchase necessary; Ask us about our guns-for-dope trade-in plan; You need not be present to win; Some assembly required; Batteries not included; Action figures sold separately; Contents were packed full at the factory, but may have settled during shipping; Peanuts and peanut products are produced in this establishment and also consumed by the author; Sanitized and sealed for your protection; Do not use if safety seal is broken; Do not use while operating a motor vehicle or heavy equipment; Safety goggles may be required during use; Use gloves when handling; Call before you dig; Use only with proper ventilation; For external use only, if a swelling, redness, rash, or irritation develops, discontinue use; Do not place near a flammable or magnetic source; Keep away from open flames; Avoid inhaling fumes or contact with mucous membranes; Contents under pressure, may explode if incinerated; Smoking may be hazardous to your health; No smoking allowed, except in designated areas; The best safeguard, second only to abstinence, is the use of a good laugh; Text is made from 100% recycled electrons and magnetic particles; No animals were harmed while writing this post; No salt, MSG, preservatives, artificial color or flavor added; If ingested, do not induce vomiting, If symptoms persist, consult a comedian; Ribbed for your pleasure, slippery when wet; Must be 18 to enter; No one under 21 allowed; We check IDs to age 40; Seniors Welcome; Ask for our Senior Menu; Present discount coupons to cashier before totaling; An 18% gratuity will be added to the total for parties of 8 or more; We reserve the right to refuse service to anyone. Return all carts to the store; No dogs allowed, except for the visually impaired; Penalties for early withdrawal, one size fits all; Offer is valid only at participating sites; Prices slightly higher west of the Rockies; Allow four to six weeks for delivery; If defects are found, do not attempt a repair, return to an authorized service center; Please remain seated until the vehicle has come to a complete stop; Objects in the mirror may be closer than they appear; Fasten seat belts; In the unlikely event of a loss of cabin pressure, oxygen masks will fall from above, cover your face first, then assist those around you. Your seat cushion may be used as a floatation device. This disclaimer is invalid in the event of hurricanes, floods, earthquakes, sonic booms, vibration, electromagnetic radiation from nuclear blasts or any other act of war, unauthorized repair, improper installation, misuse, typos, misspelled words, missing or altered signatures, and incidents owing to computer or disk failure, accidental file deletions, and Acts of God. Other restrictions may, or may not apply.</font>
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