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

Can't install clamp down Distributor cap

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Old Jul 19, 2009 | 12:33 AM
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Default Can't install clamp down Distributor cap

My distributor has screw down type cap
i bought a clear "clamp down" mr gasket cap
http://www.summitracing.com/parts/MRG-1263/
i couldn't use it,i can't use clamp down caps on my distributor
why ???? all of yours are the same ?
if i want to use it i have to change the distributor plate !!!!

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Old Jul 19, 2009 | 12:49 AM
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Originally Posted by Calderone
i couldn't use it,i can't use clamp down caps on my distributor
why ???? all of yours are the same ?
Because that is for the old style non computer controlled dist with vac can.
Ours are screw down cap.
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Old Jul 19, 2009 | 12:53 AM
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Exactly,i managed to use the clear coil cap only
it shows my brute thunder but i wanted everything clear ...
im looking for some screw down clear cap with no luck
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Old Jul 19, 2009 | 01:56 AM
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Try some redneck engineering & this is just a WAG on my part, If the spring locks are indexed to the cap in the same location as the screw down cap cut the "L" shaped bottom off the spring locks (a whiz wheel will do nicely, don't melt the cap) to remove them & replace them with screws.
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Old Jul 19, 2009 | 01:58 AM
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i will see if they are in the exact same location !
thanks
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Old Jul 19, 2009 | 02:34 AM
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Originally Posted by Churchkey
Try some redneck engineering & this is just a WAG on my part, If the spring locks are indexed to the cap in the same location as the screw down cap cut the "L" shaped bottom off the spring locks (a whiz wheel will do nicely, don't melt the cap) to remove them & replace them with screws.
Good WAG! Yes this will work. Cut off the clamp ends, and replace with the old cap's screws. All the indexes are identical.



BTW I visited Valparasio, Chile many years ago.
The Communist newspapers were not very friendly. But the bars took our money just the same......

Last edited by JrRifleCoach; Jul 19, 2009 at 02:37 AM.
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Old Jul 19, 2009 | 02:37 AM
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if i cut the clamp ends,i will have to take off the springs and big screws
i think the holes will be too big..i will check out anyway
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Old Jul 19, 2009 | 02:42 AM
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Originally Posted by Calderone
if i cut the clamp ends,i will have to take off the springs and big screws
i think the holes will be too big..i will check out anyway
Trust me.

Worst come to worst, you can install a small washer under the screw head.

I have already used this procedure when installing a red MSD cap on my 86
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Old Jul 19, 2009 | 01:01 PM
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Thanks i will try this asap !
Sammy
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Old Jul 19, 2009 | 01:07 PM
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just buy a 82-84 f-body hei-est distributor they used that hook design.

my 82 vette has that type of cap to.

Last edited by jeffp1167; Jul 19, 2009 at 01:12 PM.
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Old Jul 19, 2009 | 01:26 PM
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Let me know how it works for you, I might have to use the clear cap if it works for you. That is very cool.
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Old Jul 19, 2009 | 01:34 PM
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Yes i will let you know
I'd rather modify the cap than buy a new dist, but its not a bad idea !
Anyway for now...i did the clear coil cap only,so it shows my Accel Brute thunder
when i take the TPI Dist cover and i like it.-
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Old Aug 25, 2015 | 09:28 PM
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I know this is a six year old thread but; I just did this and it works perfectly. I used 10x24x1 machine screws and they went right in with no problems. You could probably use a 3/4 inch screw also.
Just my experience.
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Old Aug 25, 2015 | 09:42 PM
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Originally Posted by rrt898
I know this is a six year old thread but; I just did this and it works perfectly. I used 10x24x1 machine screws and they went right in with no problems. You could probably use a 3/4 inch screw also.
Just my experience.
Necrothread !
Well, i wanted to install some clamp-on style distributor cap
i ended up using the screw style cap.

did you remove the clamps and installed those screws ?
i didn't get what you do, thanks anyway.
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Old Aug 27, 2015 | 07:04 AM
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Originally Posted by Calderone
Necrothread !
Well, i wanted to install some clamp-on style distributor cap
i ended up using the screw style cap.

did you remove the clamps and installed those screws ?
i didn't get what you do, thanks anyway.
Yes, you remove the clamps. You either cut or bend the bottom hooks. Then push up the springs and clamps. Then install your bought machine screws. The clamp down holes line up perfectly with screw down holes. It's a very easy conversion.
Hope this helps
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Old Aug 27, 2015 | 07:13 AM
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Thanks ! Now i got it
Good conversion !!!
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