how vital is this whole shimming the, flywheel thing? |
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how vital is this whole shimming the, flywheel thing? |
xsboost90 |
Jun 7 2005, 06:36 AM
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#1
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Senior Member Group: Members Posts: 1,393 Joined: 2-August 04 From: cincinnati Member No.: 2,432 |
talking to the guy i bought the motor from the other day, and he asked how many shims i had to put in the flywheel. I said..." shims?". When i bolted and torqued it 80lbs, i didnt see anything about no shims! Engine seemed to turn over by hand, alittle stiff, but turned over none the less. Could i be hurting it running w/ too much tension or something? Im planning on taking the trans back out for some parts replacement, i guess ill mic it then and check, but if its too tight could it toast the motor i guess? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif)
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North Bay 914 |
Jun 7 2005, 07:09 AM
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#2
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Senior Member Group: Members Posts: 509 Joined: 25-January 05 Member No.: 3,504 |
It is how the endplay on the Type 4 is set...Important is a good word here. Here is how from an on-line article. They may be there and you just didn't notice them.
Install only 2 of the three end play shims. If you do not reset the end play, you will destroy the engine as the crankshaft will move either excessively or not enough. Temporarily install the flywheel using the old crush plate. Torque the bolts to 80lbs. Reinstall the flywheel lock to prevent movement. Attach the dial indicator to the transmission shroud and measure the movement of the crankshaft, front to rear by pulling and pushing the flywheel. The desired play is 0.07 - 0.15mm. Take the end play measurement and subtract 0.07mm. This amount will be the desired thickness of the third shim. You may have to mis and match several shims to accommodate the desired dimension, but install no more than three. |
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