MS Pro billet HEI - module issues ?
Melting Slicks
Joined: May 2002
Posts: 2,431
Likes: 52
From: Florida
Not me, but Radio Shack sells small tubes of Heat Sink that should be used between the module and the dist. This will aid in preventing heat conduction from dist. to the module. Do not use dielectric grease (as many auto parts shops suggest) since it will not stop the conduction of heat as the Heat Sink does. Actually makes it worse. Don't know if there is a Radio Shack in Belgium though. Good luck.
http://www.radioshack.com/product/in...lickid=prod_cs
http://www.radioshack.com/product/in...lickid=prod_cs
Melting Slicks
Joined: Jul 2009
Posts: 3,264
Likes: 3
From: Vero Beach FL
Not me, but Radio Shack sells small tubes of Heat Sink that should be used between the module and the dist. This will aid in preventing heat conduction from dist. to the module. Do not use dielectric grease (as many auto parts shops suggest) since it will not stop the conduction of heat as the Heat Sink does. Actually makes it worse. Don't know if there is a Radio Shack in Belgium though. Good luck.
http://www.radioshack.com/product/in...lickid=prod_cs
http://www.radioshack.com/product/in...lickid=prod_cs
My first thought as well.
Tech Contributor
Joined: Jun 2004
Posts: 20,779
Likes: 957
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Not me, but Radio Shack sells small tubes of Heat Sink that should be used between the module and the dist. This will aid in preventing heat conduction from dist. to the module. Do not use dielectric grease (as many auto parts shops suggest) since it will not stop the conduction of heat as the Heat Sink does. Actually makes it worse. Don't know if there is a Radio Shack in Belgium though. Good luck.
http://www.radioshack.com/product/in...lickid=prod_cs
http://www.radioshack.com/product/in...lickid=prod_cs
Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
I have been trying to figure out the high failure rates of
them on my 81. always used the best sink compounds and OE
brand module.
I hope it was the alternator volts because mine was a little flaky.
I just spent some bucks to have a pro make it right.
time will tell.
them on my 81. always used the best sink compounds and OE
brand module.
I hope it was the alternator volts because mine was a little flaky.
I just spent some bucks to have a pro make it right.
time will tell.
Drifting
Joined: Aug 2005
Posts: 1,372
Likes: 4
From: Springfield VA
Yep make sure what ever grease you use is not clear. Many came with the wrong grease.
Most common, like jimvette999, is talking about is white. You can also get some from frys, bestbuy, and microcenter. It will be in the PC section. Just ask for heatsink grease and buy the cheapest one. The more costly will not help much in this type of setting. And it does not take much, just a small couple drops.
Most common, like jimvette999, is talking about is white. You can also get some from frys, bestbuy, and microcenter. It will be in the PC section. Just ask for heatsink grease and buy the cheapest one. The more costly will not help much in this type of setting. And it does not take much, just a small couple drops.
Melting Slicks
Joined: May 2002
Posts: 2,431
Likes: 52
From: Florida
Heat sink compound is meant to enhance the thermal conduction from the module into the distributor body. The module's power transistor gets hot from switching the coil primary current, and the distributor body is the only place for the heat to go. Without that heat path the transistor/module will eventually overheat and fail.
Tech Contributor
Joined: Jun 2004
Posts: 20,779
Likes: 957
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
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Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,164
Likes: 7
From: Beringen
Reason I'm asking is I have an engine that idles quite well when cold, when warming up and keep running after warmed up. However when restarted after ca. 15 minutes, idle quality takes a dump.