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ltcjmramos

WEVO Motor Mounts

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I installed WEVO motor mounts on my '04 GT3. I would have thought that the engine would have dropped a bit, but looks like it was raised. See the positioning of my muffler tips to see the change. Pic 1 is before, Pic 2 is after. Was this to be expected? Can I adjust the cats/mufflers to reposition the tips a bit. These are Eisenmann tips on Cargraphics mufflers; only adjust in and out, not up and down.

post-1805-1188480641_thumb.jpg

post-1805-1188480659_thumb.jpg

Edited by ltcjmramos

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The new mounts have less elasticity - firmer means the engine will sit higher. The old mounts were obviously softer, hence the lower position of the engine and exhaust tips.

You may be able to pull down the mufflers a little on their brackets - but there may not be all that much tolerance stack up to get you to the tip position with the original mounts. You'll have to look at every place along the exhaust route to see if some additional give is possible - without impacting the integrity of the tube joints.

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I've been in communication with WEVO and Joel Reiser of PCA Tech. IMO, not good news for using the WEVO product on the 996GT3. Here are their comments:

WEVO-

The WEVO C2 SS mounts were not designed as replacement parts for any car later than the 993. We know some shops supply the kits with longer bolts to allow the mounts to be installed in your car - but we have never done an install to be able to validate correct fit. As a result I can not confirm if you installation is typical or not.

However, as a friend over on Rennlist points out -

Check out this link from THEIR website:http://www.wevo.com/Products/Chassis...gineMounts.htm

It specifically states:

The C2 SS mount can also be used on the 996 series chassis and the 996 based GT3 cars – however – a longer bolt is required than the unit provided with the kit.

PCA Tech -

That does not sound right. How much have they come up? If it's an eighth of an inch, I wouldn't worry about it. If it's a half an inch, let's figure this out. My guess is that the bottom of the Wevo mount might be sticking down into the large square opening of the engine mounting crossbar. I would repeat the installation, this time putting in a large thick strong washer on top of the crossbar, just below each motor mount. They don't have to be metric, although that is preferred. Let us know what you find.

Edited by ltcjmramos

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The new mounts have less elasticity - firmer means the engine will sit higher. The old mounts were obviously softer, hence the lower position of the engine and exhaust tips.

You may be able to pull down the mufflers a little on their brackets - but there may not be all that much tolerance stack up to get you to the tip position with the original mounts. You'll have to look at every place along the exhaust route to see if some additional give is possible - without impacting the integrity of the tube joints.

I not sure that the issue is alterations in complinace/stiffness characteristics. I had 993 RS motor mounts professionally installed on my car, and now the OEM exhaust tips are lower. Unless I am mistaken, RS motor mounts are not supposed to be more compliant (less stiff) than the OEM ones. I have no experience with Wevo mounts, but there must be some other underlying variables.

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My bad. :rolleyes: It appears I misassembled/misinstalled the WEVO mounts. The kit comes with a bolt, a washer and a nut. I used the washer with the nut on the underside of the mounting crossbar. WEVO has advised me that the flat washer supplied should be placed immediately against the lower pillow above the crossbar. This was not clear to me, apparently.

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No DIY pics, but it's really very easy.

-Get the car up on jackstands, rear only needed.

-Support the engine in its center by jacking it up just a bit. Use a wood block between the jack and the engine case.

-From under the car, remove the 19 mm nut from the OE mount

-From above, the mount has two 13 mm bolts holding it in place. Remove these, and the mount comes right out.

-Insert the WEVO mount as provided, that is, keep the washer against the elastomeric pillow, and between it and the mounting crossbar (which I did not do)

-Use the original 13 mm bolts to hold the WEVO mount in place.

-Back under, and use the nut (and one of your own washers, I'd assume) to secure it all. Torque spec is 63 ft-lb.

-I left the upper bolts just snug until the bottom nut was tightened.

-Tighten up the top 13 mm bolts (46 ft-lb, I believe)

Took me 45 minutes the first time, only 30 minutes the second.

Someone pointed out to me there is a DIY with pics at P-car DIY. I looked at it, and it pretty well explains it all. The only difference is that it is for the RS mount not the WEVO. And, in my case, there were no obstructions at all in getting my mounts out or in. See http://p-car.com/diy/motormount/

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