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Old 03-09-2007, 10:19 PM   #1
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Default Replacing the coupler on an M90, how do you ....

...seal it back up after the surfaces are cleaned off for the red gasket maker?


How much gasket maker do I need? Just put a bead down and press it back together and put it on the car?
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Old 03-09-2007, 10:24 PM   #2
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Depends. Did your rotor assembly come loose? If so, you need to seal two interfaces. If not, only the nosedrive.

No more than this:


That was my first one about 4 years ago. I use a little less now. Use a torque wrench during assembly.
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Old 03-09-2007, 10:29 PM   #3
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Quote:
Originally Posted by willwren
That was my first one about 4 years ago. I use a little less now. Use a torque wrench during assembly.
how many inch lbs


so I just put the gasket maker on there...reassemble and put on the car and drive?
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Old 03-09-2007, 10:32 PM   #4
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www.zillamotorsports.com

Left frame, Pictures 1. Scroll through to the scans. There are two. One is the last on one page, the other the first on the next page. One of them has your instructions. You'll find it easily. I'd link you directly, but I'm on the way out.
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Old 03-09-2007, 10:35 PM   #5
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Old 03-09-2007, 10:43 PM   #6
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Do not forget the oil. M90 uses 8oz, bring the level to the bottom of the threads on the plug.
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Old 03-14-2007, 04:32 PM   #7
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Just as a heads up / warning for those following this procedure:

I threw my */C back together and followed these directions, and thought I had done a good job of using as little gasket maker as possible, as well as keeping it far enough away from the inside of the */C.

Well, after realizing that I hadn't greased the needle bearings, I opened it back up a few days later (3 or 4 days on the bench), and found myself quite a mess. Despite my *thinking* that I was okay with my gasket job, small amounts of the gasket maker had squeezed into the */C housing. What'* more, a quick spin of the rotors (after re-assembly, to make sure nothing was binding up) scraped the gasket maker off of the housing, and got it into the rotors.

Bummer.

It took a good 45 minutes to clean up the bits and pieces of gasket maker than found their way all around the rotors of the */C. Re-assembly (after greasing those needle bearings) was done with an even smaller amount, and with the gasket maker kept as far to the edges of the sealing surface as what I felt comfortable doing.

So yeah... just wanted to let people know how critical it really is to keep the gasket maker to a minimum. Based on Willwren'* pics, I would have thought I had used less than him on my original attempt (guess not!). If you're not sure, put a small section on the housing (1/2" or so), and bolt it up (lightly, don't torque everything down). See where the gasket maker ends up, and use that as your guide for the application of it. Sure beats having that stuff get caught up in your rotors (and in your oil / gears, on the nosedrive surface), and needing to take the time to clean things up after the fact.

I don't remember if I took pics of the first application, but I'll check when I get home.
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Old 03-14-2007, 04:38 PM   #8
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Quote:
Originally Posted by mkaake
Just as a heads up / warning for those following this procedure:

I threw my */C back together and followed these directions, and thought I had done a good job of using as little gasket maker as possible, as well as keeping it far enough away from the inside of the */C.

Well, after realizing that I hadn't greased the needle bearings, I opened it back up a few days later (3 or 4 days on the bench), and found myself quite a mess. Despite my *thinking* that I was okay with my gasket job, small amounts of the gasket maker had squeezed into the */C housing. What'* more, a quick spin of the rotors (after re-assembly, to make sure nothing was binding up) scraped the gasket maker off of the housing, and got it into the rotors.

Bummer.

It took a good 45 minutes to clean up the bits and pieces of gasket maker than found their way all around the rotors of the */C. Re-assembly (after greasing those needle bearings) was done with an even smaller amount, and with the gasket maker kept as far to the edges of the sealing surface as what I felt comfortable doing.
Explain to me HOW you would get gasket maker anywhere near the rotors? I use the gasket to seal up the snout to the rotot assembly, not the rotor assembly to the rotor hoursing..I'm confused on how you managed what you did.
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Old 03-14-2007, 04:44 PM   #9
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Quote:
Originally Posted by Hans

Explain to me HOW you would get gasket maker anywhere near the rotors? I use the gasket to seal up the snout to the rotot assembly, not the rotor assembly to the rotor hoursing..I'm confused on how you managed what you did.
I did both. The rotors came out, so to prevent vacuum (or boost, depending) loss, both mating surfaces were sealed.
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Old 03-14-2007, 04:55 PM   #10
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Quote:
Originally Posted by mkaake
Quote:
Originally Posted by Hans

Explain to me HOW you would get gasket maker anywhere near the rotors? I use the gasket to seal up the snout to the rotot assembly, not the rotor assembly to the rotor hoursing..I'm confused on how you managed what you did.
I did both. The rotors came out, so to prevent vacuum (or boost, depending) loss, both mating surfaces were sealed.
On the M90 there is no gasket between the rotor housing and the rotor plate. I dont see why it would be needed a second time since it does not come with the gasket.

I dont see why sealing it is needed.
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