conrod crankpin bearing problem
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- Seight-V8
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conrod crankpin bearing problem
hello all,
taking things really slow with my latest 4.6 v8 engine build.....so I'm checking as much as I can before and as i build it.
Got my engine internals back from chessman's just before xmas, after balancing.
Just checking conrod crankpin clearances with a bore micrometer, I notice that some of the conrod bearing caps don't fully seat when the bearings are installed.
Looks like maybe some of the bearing ends are just a little to long around the circ of the bearing.
Internal bore of the crankpin of the conrod also measures a little large too, so suggesting its not seating properly.
Anyone else had this problem, and is it ok to remove any material to make the bearings fit and the caps to meet face to face.
cheers
scott
taking things really slow with my latest 4.6 v8 engine build.....so I'm checking as much as I can before and as i build it.
Got my engine internals back from chessman's just before xmas, after balancing.
Just checking conrod crankpin clearances with a bore micrometer, I notice that some of the conrod bearing caps don't fully seat when the bearings are installed.
Looks like maybe some of the bearing ends are just a little to long around the circ of the bearing.
Internal bore of the crankpin of the conrod also measures a little large too, so suggesting its not seating properly.
Anyone else had this problem, and is it ok to remove any material to make the bearings fit and the caps to meet face to face.
cheers
scott
- Seight-V8
- Knows His Stuff
- Posts: 559
- Joined: Sun Jul 01, 2007 10:12 am
- Location: https://t.me/pump_upp
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- Seight-V8
- Knows His Stuff
- Posts: 559
- Joined: Sun Jul 01, 2007 10:12 am
- Location: https://t.me/pump_upp
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narrowed it down to 2off half bearings that are a little on the big side when sat in the rod cap, so managed to get 7 out of 8 to be ok.
Will just have to carefully remove material on the two that are left to make them fit and have the correct diameter.
at least I found it before just assembling the engine....so I'm happy.
regards
scott
Will just have to carefully remove material on the two that are left to make them fit and have the correct diameter.
at least I found it before just assembling the engine....so I'm happy.
regards
scott
- Seight-V8
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yes I have thought about sending them back, ive had them since easter and not used them.
There were supplied by real steel and are 4.6v8 OEM items made by gylco so fed mogul items.
I've just done fitted the main ones of the same make, and they have all came out with the correct diameters and fitted lovely.
So maybe just a bad batch, or bad 2off bearing shells.
Maybe best I speak to real steel first, before I attempt anything.
cheers
scott
There were supplied by real steel and are 4.6v8 OEM items made by gylco so fed mogul items.
I've just done fitted the main ones of the same make, and they have all came out with the correct diameters and fitted lovely.
So maybe just a bad batch, or bad 2off bearing shells.
Maybe best I speak to real steel first, before I attempt anything.
cheers
scott
- Seight-V8
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I've found a set of standard size "King" crankpin bearings, that I didn't use.
And these are perfectly sized in the bore, so definitely 2off wrong sized gylco bearings.
Not used "king" bearings before, but these where supplied by turner engineering, so hopefully OK to use.
thanks for all the help.
cheers
scott
And these are perfectly sized in the bore, so definitely 2off wrong sized gylco bearings.
Not used "king" bearings before, but these where supplied by turner engineering, so hopefully OK to use.
thanks for all the help.
cheers
scott