Thermal Compound
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MB 420SEL 1986-Bought in 2010, MERCURY VELLAGER-1995, NISSAN MAXIMA 1996, Buick Lesabre 1995
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426 Posts
Get RTV with copper base from auto part store. Cheap and best. Worked for me at least.
Sahai
MB 420SEL 1986-Bought in 2010, MERCURY VELLAGER-1995, NISSAN MAXIMA 1996, Buick Lesabre 1995
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426 Posts
Die-electric grease ---- no,no,no no way jose.
Very good electric conductor not good heat conductor. What you need is good heat conductor. Copper is both heat as well as well elecrtic.
Sahai
On any recent desktop computer, I doubt if you could run the CPU long enough to boot it without a heatsink, regular clocked or even underclocked. Modern x86 CPU's have temperature sensors on the die that the BIOS can read and shut down power if you have no heatsink or a fan failure; the older (1990-2004 or so) chips just locked up, self-destructed, or both!
The EZL contains, I believe, a microcontroller with a (by today's standards, crude) advance map taking into account RPM and the manifold vacuum (with the sensor on the EZL). A transistor of that capacity can get mighty hot switching at 48,000 (6000*8) times a minute.
I went to MB part to be sure about this silicone grease for the ignition module. They gave me a Dielectric grease in a tube with a clear gel but all the module original grease looks like a paste texture and thicker. This dielectric grease are not the same from the original MB like paste. It's a gel clear white and maybe i will be needing 4 gel tubes which will just squeze out from the module when attached to the plate body of the car. Other's suggest to put heat sink compound on the body plate of the car but by doing this the 2 different gel type will mix in together and i don't know whether this is good or bad result. The paste fromn the original MB module are not available not unless you buy a brand new module which is $2,200 then it comes with this silicone grease paste. How come MB does not supply this item by itself or what is the comparable material that we have it here in USA, I am pretty sure that we have that component too, instead of all of us is doing a trial and error jopb and end up damaging more components.
Whatever antiquated processor is in the MB aside, a CPU "wont get hot" because of its specfically designed heatsink, thermal compound and fan. Without any one of these, yes it does get very, very very hot (aside from ULV mini CPU types in Tablets etc obviously).
Below shows thermal compound comparisons (including no compound and "chocolate") on a 2011 CPU. Thats with a heatsink still, but without thermal compound the two metals cannot mate effectively.
http://www.hardwaresecrets.com/article/Thermal-Compound-Roundup-June-2011/1299/5
TLDR - 32c with best thermal compound, 39c with worst compound, 62c with no thermal compound. Not overclocked.
Personally Id clean off the old compound (it likely expired or whatever by now anyhow) and use any modern compound, non-conductive type.
'82 Euro 500SEL, '85 Euro 500SEC AMG WB Cabriolet,'86 Euro 500SEC RUF
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9,528 Posts
Dielectric Grease is not the same as Thermal Paste!!!
Go to radio Shack and buy Thermal Paste. You may have to buy several tubes. The last time I bought the TP at RS it was a small tube. Perhaps some other electrical component supplier has bigger tubes. The small tube is not enough.
Go to radio Shack and buy Thermal Paste. You may have to buy several tubes. The last time I bought the TP at RS it was a small tube. Perhaps some other electrical component supplier has bigger tubes. The small tube is not enough.
$25 for a 12 gram syringe of High Density Polysynthetic Thermal Compound at the local computer parts store. You don't need very much, .003" thick. And it's light years ahead of what they used in 1987.
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