Hey gang,
I got the damaged crank out last night...after over a week of delay due to Daddy Duty...and I am listing the parts I will need to buy to put this thing back together.
Among them are the drive plate bolts. I have been told that they are Torque-to-yield bolts. Is that true? Regardless, one of them got a little chewed up upon removal...so, does anyone know the part number for these? ETKA didn't list anything that I could find.
Other than the standard seals, bearings, etc. can anyone think of any other bolts or parts I need to replace while I am in there?
Thanks
Mikey
The newer style bolts (with flanged head) are P/N N 902 061 03.
The torque procedure for the flanged head bolts is 25lb-ft plus 90 degrees IIRC.
The earlier style bolts without flanged heads have a straight torque value (in the neighbourhood of 70lb-ft maybe??)
New bolts should come with blue threadlocking compound appllied - if they do not, use some. Also clean the oil out of the threads on the end of the crank with a suitable solvent.
Drew
Drew,
You don't happen to have a picture or other visualization of the different bolts do you? I stink at trying to picture things like this in my head.
Mikey
Drew,
You don't happen to have a picture or other visualization of the different bolts do you? I stink at trying to picture things like this in my head.
Mikey
Both bolts have very shallow heads, but the new style has a washer integrated into the head, the old style does not. Does that help?
Drew
Drew,
Here's one that I pulled off my engine...
Mikey
That's the flanged one - newer style.
Check the Bentley to be sure, but the torque spec is 25lb-ft plus 90 degrees, and the replacements must have threadlocking compound applied.
The correct terminology may be "shouldered" rather than flanged - darned if I know...
Drew,
Thanks again for the assistance... I am ordering some from Impex when I order the rest of my parts...likely this afternoon.
Mikey