ICM placement
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Laughing Gas
Joined: May 2015
Posts: 826
Likes: 21
From: Golden, CO
ICM placement
Reading about ICM sez to coat back side in dielectric grease, so presumably heat sink isn’t grounded to fender well…
I’m looking to have mine in-cab behind dash in my ‘52. Any reason I can’t mount to firewall (which has insulation fabric)?
Thanks
I’m looking to have mine in-cab behind dash in my ‘52. Any reason I can’t mount to firewall (which has insulation fabric)?
Thanks
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Do not use dielectric grease.. it's an insulator and defeats the whole purpose of putting the module in a heatsink, use thermal paste Yes.. I know dielectric grease is what many of the parts houses say to use and often what they provide, this is just another example of how they got it all wrong.. like when they say a Black TFI replaces a Grey module.
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Laughing Gas
Joined: May 2015
Posts: 826
Likes: 21
From: Golden, CO
Ahh, yes, thank you… didn't catch that distinction before, as when I pulled this one from a junkyard it looked like there was 'something' (maybe?) on the backside of the sink where it attached to the fender well.
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Laughing Gas
Joined: May 2015
Posts: 826
Likes: 21
From: Golden, CO
I'm assuming since I didn't remove the module from the sink I can just leave it "as is"?
I'm using the AllDataDIY site, which is where I saw the reference to dielectric grease:
"Use Silicone Dielectric Compound WA-10 D7AZ-19A331-A (ESE-M1C171-A) or equivalent."
I'm using the AllDataDIY site, which is where I saw the reference to dielectric grease:
"Use Silicone Dielectric Compound WA-10 D7AZ-19A331-A (ESE-M1C171-A) or equivalent."
Do not use dielectric grease.. it's an insulator and defeats the whole purpose of putting the module in a heatsink, use thermal paste Yes.. I know dielectric grease is what many of the parts houses say to use and often what they provide, this is just another example of how they got it all wrong.. like when they say a Black TFI replaces a Grey module.
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Fleet Owner
Joined: Aug 2005
Posts: 23,668
Likes: 301
From: Easton,Ks
I do not see any sign of the White thermal paste in your photo.
So I would remove the ICM from the heat sink and reapply the White thermal paste.
See AllDataDIY site is not always right. Check here first.
So I would remove the ICM from the heat sink and reapply the White thermal paste.
See AllDataDIY site is not always right. Check here first.
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Laughing Gas
Joined: May 2015
Posts: 826
Likes: 21
From: Golden, CO
I pulled the entire ICM assembly (w/ sink) from junkyard, so presumably it should be good to go from the factory, no?
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Laughing Gas
Joined: May 2015
Posts: 826
Likes: 21
From: Golden, CO
Thanks, no active thread currently. I started one but then realized I'd prefer to wait until the project is complete and then write-up the process from start to finish. Seemed otherwise thread would wander or get hijacked along the way...
Looking to have it on the road this summer or early fall. The wiring has been the most complicated part (though I recognize your ID as someone who has helped along the way!). I started with a massive box of wiring pulled from the donor '95 and had to go thru and cull only what I needed (or thought I needed). Yes, it would've been waaay easier to just buy an aftermarket harness, but this is a low-budget build and so I used what I had. Now the hard part (continued) is placing installing all of that wiring in the '52.
I will say it should be pretty sweet when I'm done. ;-)
Stay tuned!
Looking to have it on the road this summer or early fall. The wiring has been the most complicated part (though I recognize your ID as someone who has helped along the way!). I started with a massive box of wiring pulled from the donor '95 and had to go thru and cull only what I needed (or thought I needed). Yes, it would've been waaay easier to just buy an aftermarket harness, but this is a low-budget build and so I used what I had. Now the hard part (continued) is placing installing all of that wiring in the '52.
I will say it should be pretty sweet when I'm done. ;-)
Stay tuned!
FTE Chapter Leader
Joined: May 2006
Posts: 12,347
Likes: 1,319
From: Central Mississippi
Well, I take more blame than that. Pretty sure I suggested it (to you) somewhere along the way.
Really like to see you succeed, would like to do it on an old Mustang with a 460/E4/8.8 donor.
Keep us posted.
Really like to see you succeed, would like to do it on an old Mustang with a 460/E4/8.8 donor.
Keep us posted.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Here's a related post on the use of heatsink vs. silicone dielectric. Says too much compound is worse than none at all.
https://www.w8ji.com/distributor_stabbing.htm
https://www.w8ji.com/distributor_stabbing.htm
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