 erractic timing (NEVER MIND, bad timing light) |
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| Bill Meyer |
 Mar 15 2012, 01:40 PM
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#1
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Newbie  Group: Members Posts: 44 Joined: 11-October 07 From: Prairie Village, KS Member No.: 8,210  |
I'm trying to get my timing set on a freshly built 2056 D-jet motor and it's jumping all over the place. I've checked the dizzy again, removed the petronix (as a suspected culprit) checked the advance and such, all looks fine.
I have a yellow paint mark at the 25 degree point on the fan and am trying to check it at 3500rpm, but all I see is the yellow appear occasionally, and when it does it's never in the same place.. totally whacked out. Any ideas where to start? |
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| TheCabinetmaker |
Mar 15 2012, 01:50 PM
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#2
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
My first thought is to loosen the distributor clamp and make sure the diz is all the way in. At this point, with a fresh build, I would pull the diz and check it for anything that does not look right.
I'm assuming your not suspecting the timing light? |
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| Bill Meyer |
Mar 15 2012, 02:04 PM
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#3
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Newbie Group: Members Posts: 44 Joined: 11-October 07 From: Prairie Village, KS Member No.: 8,210 |
Don't think it's the light, works fine on my other cars. I've cleaned the dizzy and I'm fairly certain it's not that either. I've seen timing walk around a bit when the advance is sticky, but this is totally different. It's so erractic I'm thinking it's simply not firing at random intervals, as I only catch a glimpse of the yellow mark here and there. Bad coil?
QUOTE(vsg914 @ Mar 15 2012, 02:50 PM)  My first thought is to loosen the distributor clamp and make sure the diz is all the way in. At this point, with a fresh build, I would pull the diz and check it for anything that does not look right. I'm assuming your not suspecting the timing light? |
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| Bill Meyer |
Mar 15 2012, 03:00 PM
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#4
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Newbie Group: Members Posts: 44 Joined: 11-October 07 From: Prairie Village, KS Member No.: 8,210 |
NEVER MIND, , it was the timing light!! Tried another light and it's perfectly stable.. crazy.
..but it's still running poorly and a check of the CHT shows number 4 is about 120 degrees cooler than the other cylinders, guess I'll start a new thread for that issue. fun (IMG:style_emoticons/default/sad.gif) QUOTE(Bill Meyer @ Mar 15 2012, 03:04 PM) Don't think it's the light, works fine on my other cars. I've cleaned the dizzy and I'm fairly certain it's not that either. I've seen timing walk around a bit when the advance is sticky, but this is totally different. It's so erractic I'm thinking it's simply not firing at random intervals, as I only catch a glimpse of the yellow mark here and there. Bad coil? QUOTE(vsg914 @ Mar 15 2012, 02:50 PM) My first thought is to loosen the distributor clamp and make sure the diz is all the way in. At this point, with a fresh build, I would pull the diz and check it for anything that does not look right. I'm assuming your not suspecting the timing light? |
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