Clutch Install Issues, Pressure plate not in contact with flywheel |
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Clutch Install Issues, Pressure plate not in contact with flywheel |
RKramden |
Dec 12 2023, 09:33 PM
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#1
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Newbie Group: Members Posts: 41 Joined: 26-October 19 From: So. California Member No.: 23,589 Region Association: Southern California |
I am having issues with my new clutch. After tightening to torque (18fp) the pressure plate is still not in contact with the flywheel (aprox. 1mm gap). Is this normal? If not, should I continue to tighten until it bottoms on the flywheel?
When I first installed, it was almost a 1/4" gap at torque, so I put some clamps on it and I got the internals of the pressure plate to move that I now assume were somehow frozen. Any advice would be greatly appreciated. |
Shivers |
Dec 12 2023, 10:13 PM
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#2
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Senior Member Group: Members Posts: 2,432 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
18 lbs is right. I wouldn’t go any more. If it was me, I’d pull it apart and see what is wrong. Are those bolts too long? @RKramden
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Superhawk996 |
Dec 13 2023, 05:54 AM
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#3
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914 Guru Group: Members Posts: 5,903 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
If it was me, I’d pull it apart and see what is wrong. Are those bolts too long? (IMG:style_emoticons/default/agree.gif) Something is wrong Those fasteners are not correct and may be too long. Supposed to be M8x15mm long hex head bolt and they get a lock washer under the bolt head which will be 2 or 3 mm thick so only about 12 - 13 mm of actual thread into the flywheel. The depth of the pressure plate fastener holes decrease when the flywheel is machined. A socket head cap screw is the wrong fastener for this application. Although they have higher tensile strength, they are more brittle than a hex head bolt due to case hardening. Even worse, it looks like you are using plated socket head cap screws which are prone to hydrogen embrittlement making unexpected stress cracking a real concern. Stick with the OE style hex head bolt as the proper fastener. More details than you wanted to know: https://www.boltscience.com/pages/the-stron...r-fasteners.pdf Also if flywheel was machined, that needs to be inspected carefully along with the dowel pins to make sure the pressure plate isn’t hanging up on something. Likewise step height between friction surface and pressure plate surface needs to have been machined properly |
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