Serial 0 Posted August 24, 2009 Does anyone know if the thrust washers either side of bearing cap no. 5 should be slightly loose? I've just installed new ones from VW (the ones with only half of the circle) and when the crank is rotated back and forth, I can see the washers move very slightly. The vertical 'stub' part of the washer doesn't seem to be keyed properly into the groove on the side of the bearing cap so the washer rotates a fraction with the crank. I've torqued the caps down, luckily got ARP studs so can take them off without worries. It's a bit difficult to describe in words, I'll try to get some pictures up this evening if possible. T Quote Share this post Link to post Share on other sites
Serial 0 Posted August 24, 2009 Took this photo... there's two things that concern me, one is that the washer 'stub' (long red arrow) on the washer moves from side to side in the slot when the crank rotates back and forth, and there's quite a gap (marked) between the washer and the bearing cap... am I being overly concerned about this, or have I got the wrong part, or assembled it wrong? 22082009182_edit.JPG[/attachment:2a2n2i5c] Any help appreciated, thanks :) Tom Quote Share this post Link to post Share on other sites
CorradoVR6-Turbo 0 Posted August 24, 2009 You will exspect the thrust washer to move back and forth if you move the crank like that to. But once running it not going to move like that,have you measured the crank end float? Quote Share this post Link to post Share on other sites
Serial 0 Posted August 24, 2009 OK so the back & forth movement isn't a problem, that's encouraging. I haven't measured the end float yet, will go and do so. Would excessive end float cause the thrust washer not to seat right down in the bearing cap slot? T Quote Share this post Link to post Share on other sites
CorradoVR6-Turbo 0 Posted August 24, 2009 Yea the tag stops it fully rotating around but if there is to much free play that could cause the tag to come away and worse case the thrust drops out but thats unlikley as it would have to be excessively worn. Quote Share this post Link to post Share on other sites
Serial 0 Posted August 24, 2009 End float is less than 0.10mm so well within the wear limit of 0.25mm, according to Bentley. I guess it's probably OK, just wanted to be absolutely sure :) Quote Share this post Link to post Share on other sites
CorradoVR6-Turbo 0 Posted August 24, 2009 yup nothing wrong with that at all,good engines th VR 8) Quote Share this post Link to post Share on other sites
