End Play, Best time to messure |
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End Play, Best time to messure |
DavidSweden |
Jan 4 2015, 05:25 AM
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#1
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Member Group: Members Posts: 479 Joined: 8-June 14 From: Sweden Member No.: 17,452 Region Association: Scandinavia |
When is the best time to measure the end play during an engine rebuild, before or after installation of the cylinders and pistons, or doesn't it matter?
Thanks |
Bulldog9 |
Jan 4 2015, 04:11 PM
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#2
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Senior Member Group: Members Posts: 705 Joined: 21-August 13 From: United States Member No.: 16,283 Region Association: MidAtlantic Region |
I just got done doing this, I didnt measure until after the pistons and cyls were in place, so I dont have the before measurement, but it seemed to me that the 'end play' was much greater before I installed the pistons and cyls. This makes sense as the connecting rods would have no limit on fore-aft movement without the pistons and cyls in place.
When I did measure, was spot on with my shims at .1mm. According to the factory manual, the end play is .07-1.3MM, and the wear limit is 1.5MM. This is for a 912E. |
DavidSweden |
Jan 4 2015, 05:36 PM
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#3
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Member Group: Members Posts: 479 Joined: 8-June 14 From: Sweden Member No.: 17,452 Region Association: Scandinavia |
I just got done doing this, I didnt measure until after the pistons and cyls were in place, so I dont have the before measurement, but it seemed to me that the 'end play' was much greater before I installed the pistons and cyls. This makes sense as the connecting rods would have no limit on fore-aft movement without the pistons and cyls in place. When I did measure, was spot on with my shims at .1mm. According to the factory manual, the end play is .07-1.3MM, and the wear limit is 1.5MM. This is for a 912E. Yes, this is why I asked the question. On a previous engine rebuild (a 912) the end play was almost non existent after I installed the P&C´s. I removed the cylinders and heads to double check and the end play was once again within spec. Any thoughts on this... anyone |
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