C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Pulling a L98 Distributor.

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Old Sep 2, 2022 | 08:51 AM
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Default Pulling a L98 Distributor.

Need to pull my distributor. Should I clean the intake before pulling it ?
Any chance of debris falling into the motor ?
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Old Sep 2, 2022 | 09:57 AM
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Originally Posted by the blur
Need to pull my distributor. Should I clean the intake before pulling it ?
Any chance of debris falling into the motor ?
If you have some type of build- up. leaves, dirt, nasty grease. then yes clean the area.
Removing the Dist is easy.
Sounds. Like a first time for you.
Installing is a method.
If i were you watch vids. Have service manual picture reference.
To complete this task properly you should have a timing light. You would also need to pull the Adv lead should be a brown wire with a single connector. Number your wires. Know your FO 1,8,4,3,6,5,7,2
Dist cap should have a line mark for number 1 would not hurt to number your Dist cap knowing cable order. Also notate rotor pointing direction.
And set the timing back to 6 deg BTDC..
The dist gear actually rotates about 2 teeth removing and or installing.
A service manual purposely set the oil pump shaft slot pointing to cyl 5
You need to purposely drop the Dist 2 teeth counter clockwise. to allow the dist gear & tang line up with the oil pump shaft slot.
I would ask an experienced friend to guide you the first time.
many modern master GM service techs are clueless. They cannot complete this old art.
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Old Sep 2, 2022 | 10:15 AM
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ok, I'm going to mark the housing, and rotor position. .... and label the cap. Hopefully this weekend. I plan on dropping it back in as it came out. Not finding TDC before hand.

I've done plenty of work, just never needed to change a pickup coil before.
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Old Sep 2, 2022 | 09:23 PM
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I always remove the cap and snap a photo from straight above. Reinstall in same position, I usually am within a degree or two of correct timing and it starts right up.
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Old Sep 3, 2022 | 07:08 AM
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Pulled the dizzy last night. The top of the shaft has the stator, or 8 point thing. It's rusted so badly, 1/2 of it is missing. So I can't even rebuild it. It's too far gone.
Have to buy a whole new distributor.
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Old Sep 3, 2022 | 09:54 AM
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Originally Posted by the blur
Pulled the dizzy last night. The top of the shaft has the stator, or 8 point thing. It's rusted so badly, 1/2 of it is missing. So I can't even rebuild it. It's too far gone.
Have to buy a whole new distributor.
I believe I have a correct distributor missing the electronics, harnesses, cap rotor etc. Housing, shaft and gear is good. I'll try to put my hands on it. If this interests you PM me.
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Old Sep 4, 2022 | 07:46 PM
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Originally Posted by the blur
Pulled the dizzy last night. The top of the shaft has the stator, or 8 point thing. It's rusted so badly, 1/2 of it is missing. So I can't even rebuild it. It's too far gone.
Have to buy a whole new distributor.
No need to replace the whole dist. It's just the pickup coil that is bad. I just went thru this whole mess. Put in a new pickup coil and module. My pickup coil was OC, so no spark. Looks like it also overheated, and leaked out lots of goo, down into the dist. Cleaned it all up, but you must pull the dist to change the pickup coil. It wasnt that bad of a job. Just follow what was said above, and take lots of pictures. A new dist might be over $300, but it will be plug and play. The pickup coil was like $53 from Napa.
HTH.
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Old Sep 6, 2022 | 08:52 AM
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Originally Posted by MikeT 90 C4sixer
No need to replace the whole dist. It's just the pickup coil that is bad. I just went thru this whole mess. Put in a new pickup coil and module. My pickup coil was OC, so no spark. Looks like it also overheated, and leaked out lots of goo, down into the dist. Cleaned it all up, but you must pull the dist to change the pickup coil. It wasnt that bad of a job. Just follow what was said above, and take lots of pictures. A new dist might be over $300, but it will be plug and play. The pickup coil was like $53 from Napa.
HTH.
The top of the distributor shaft with the 8 points on the stator. It's rusted, and half of it is missing. It's completely worn out & done in 80,000 miles.
Rock auto entire new distributor for $60 !!! With cap & rotor. Now I need to return the pickup coil, cap & rotor, and other various parts I brought to rebuild the OEM distributor.
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Old Sep 6, 2022 | 09:54 AM
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Originally Posted by the blur
The top of the distributor shaft with the 8 points on the stator. It's rusted, and half of it is missing. It's completely worn out & done in 80,000 miles.
Rock auto entire new distributor for $60 !!! With cap & rotor. Now I need to return the pickup coil, cap & rotor, and other various parts I brought to rebuild the OEM distributor.
That certainly seems UNLIKELY - I doubt that !
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Old Sep 6, 2022 | 10:01 AM
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Before making stupid comments, do a little research: No core charge either !

ULTRA-POWER GM04 {Click Info Button for Alternate/OEM Part Numbers} New Info
New Distributor $65.89 $0.00 $65.89
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Old Sep 6, 2022 | 10:09 AM
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Originally Posted by the blur
Before making stupid comments, do a little research: No core charge either !

ULTRA-POWER GM04 {Click Info Button for Alternate/OEM Part Numbers} New Info
New Distributor $65.89 $0.00 $65.89

Stupid comment? Hardly!

That's NOT a replacement for your car. I believe I've seen you mention an '89 and your distributor (you can confirm on your old) I'd think would be an 1103680
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Old Sep 6, 2022 | 04:12 PM
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Originally Posted by the blur
Rock auto entire new distributor for $60 !!! With cap & rotor. Now I need to return the pickup coil, cap & rotor, and other various parts I brought to rebuild the OEM distributor.
Well, I hope it works out for you. I didnt look very far for a replacement dist, but I did check CC, and they wanted like $300 for a completely loaded dist.
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Old Sep 6, 2022 | 04:33 PM
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Originally Posted by the blur
The top of the distributor shaft with the 8 points on the stator. It's rusted, and half of it is missing. It's completely worn out & done in 80,000 miles.
Originally Posted by WVZR-1
That certainly seems UNLIKELY - I doubt that !
Originally Posted by WVZR-1
Stupid comment? Hardly!

That's NOT a replacement for your car. I believe I've seen you mention an '89 and your distributor (you can confirm on your old) I'd think would be an 1103680
I agree with WVZR-1;
*It's highly unlikely that the distributor is worn out at 80k. That would be unheard of.
*The one that you found is the wrong distributor.

You can buy it...but there is a smarter way to repair your car.
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Old Sep 6, 2022 | 08:46 PM
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Cardone makes a fully loaded distributor for $104 on rockauto, new, specific to an 89 Corvette, with the built in coil.
My application is a small cap HEI with an external coil. $65 on rock auto.

yes, my distributor is completely worn out at 80,000 miles. I always had rust piles under the rotor, and finally figured out why.
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Old Sep 6, 2022 | 09:11 PM
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Originally Posted by the blur
Cardone makes a fully loaded distributor for $104 on rockauto, new, specific to an 89 Corvette, with the built in coil.
My application is a small cap HEI with an external coil. $65 on rock auto.

yes, my distributor is completely worn out at 80,000 miles. I always had rust piles under the rotor, and finally figured out why.
So you've a distributor that isn't stock and probably similar to this maybe?


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Old Sep 6, 2022 | 09:15 PM
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See the shaft #5. See the 8 points on the stator. Mine is down to 6 points, and the metal remains have been building piles of rust particles under my rotor for years.
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Old Sep 6, 2022 | 09:24 PM
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Originally Posted by the blur
See the shaft #5. See the 8 points on the stator. Mine is down to 6 points, and the metal remains have been building piles of rust particles under my rotor for years.
Does your 'busted' distributor have an OE/GM number on it or is it after-market also? I assumed you were replacing OE/GM for an '89 and you actually did mention OEM in post #8 so ..........................I still believe my comment wasn't stupid! You might have mentioned what you had earlier if looking for help.

If yours is actually a GM and you bought correct internals originally then a buy of a mainshaft could still be a wise move! A 65$ distributor?

Last edited by WVZR-1; Sep 6, 2022 at 09:39 PM.
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Old Sep 7, 2022 | 08:37 AM
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Why would I spend $240 on a main shaft for my OEM / GM distributor, when I can buy an entire new unit for $65, or your fat cap entire distributor for $100.

I see people spend crazy money on the MSD name, & other fancy names, and they have more problems than the cheaper standard replacements.

Go surf around rockauto for a while. I found nothing more reasonable.

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Old Sep 7, 2022 | 11:56 PM
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New Chinese Rock auto distributor is in. $65, car runs great. No more stalling, no more hunting idle. Still need to time it. I just dropped in the distributor where it was..
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