Thermal Compound Paste

[captruff]

Is this more or less the correct product to use for the back of the EZL??

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Seems like a good price.

Jeff

 

[gerryvz]

More info is here:

HOW-TO: Replacing Thermal Paste Behind EZL unit | "HOW-TO" Tutorial Articles

As many know, the EZL (ignition computer) is attached to the driver's side inner wheel well area in the engine compartment on the 500E/E500 (as well as the 400E/E420, 560SEL/SEC, and many other 1980s and 1990s MBs). There is a thin layer of white thermal paste that the factory used between the...

www.500eboard.co

 

[Jlaa]

I used this for the back of the EZL. Note the thermal conductivity specifications ---> >3.17W/m-k

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[JC220]

Is this more or less the correct product to use for the back of the EZL??

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Seems like a good price.

Jeff

That paste is just fine. I have it on several cars of mine for a couple years now.

 

[gsxr]

Jeff, the eBay link appears to be a small syringe, only 1g of paste, which is probably adequate for a computer processor/CPU. And they want roughly $3 per gram.

For an EZL, you'll need roughly 8g of paste, which may result in some excess squeeze-out to clean up after installation. I use these 14g tubes, one tube is enough for 1.5 or 2 applications on an EZL, depending how thick it's applied. Cost is less than $0.50 per gram. And, it's Made in USA:

Arctic Silver (2 Pack) Arctic Alumina 14 Gram Polysynthetic Ceramic Thermal Grease

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[JC220]

These were my notes before

Tonight I got a small job done I've been meaning to do for a while. Applying fresh thermal paste to the EZL. The unit appears to be a replacement since someone before left a nut off and make a mess of the paste! It was hard as concrete, rough uneven surface and making near zero contact with the fender. This new paste should extend the life of the EZL but I'll be getting a spare anyway soon to have on the shelf. A very thin cellophane was also applied over the paste as the factory did. Some of the new paste squeezed out at the edges but at least I know it’s got 100% contact now


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Photos here

OWNER - JC220 | Owners and Their Cars

I may have mis-understood your last post, but I would be very hesitant about using the puller to remove the center piston from the housing. Those holes where the spring-loaded pistons are installed are finely machined and I wouldn't want to mess them up while trying to pull the center piston...

www.500eboard.co

 

[JC220]

Just remember- this paste is to fill small gaps between the EZL and the inner fender sheetmetal to dissipate heat.

Aka, the fender sheetmetal dissipates the heat. Not the paste, the paste is a transfer mechanism.

Less is more. Dont pile it on! You want to fill gaps only and heat to pass through to the steel.