View original topic: Assistance on installation of engine pulley - found something
IdahoDoug Mon Jun 12, 2017 8:38 am

So, my original engine had the engine pulley mounted with just a rubber O ring behind it. My spare engine had a thin metal shim-like spacer behind that, which seemed to function as a shield to hold the rubber O ring from hitting the block itsel.

As usual, the Bentley is silent on this feature. Has anyone else found this arrangement behind their pulley? The Bentley even shows no O ring behind the pulley but the rear surface of the pulley seems set up to engage an O ring.



djkeev Mon Jun 12, 2017 9:25 am

The Oring is used with Power Steering or A/C optioned engines.


IdahoDoug Wed Jun 14, 2017 9:32 pm

So, any input on the metal shim/plate like thing mine also had? And can anyone point to a Bentley page where they mention the O ring for PS/AC cars? Very puzzling.

jberger Thu Jun 15, 2017 8:14 am

Are you referring to the metal "washer" that gets installed on the crank shaft behind the woodruff key? This has been on all the water boxers I have worked on. It functions as a seat for the oring. It is reminiscent of the oil slinger in type 1 engines but does not function as one as far as I know.

IdahoDoug Thu Jun 15, 2017 5:36 pm

THANK YOU!!! ding ding ding. OK. All I needed was reassurance that thing is supposed to be there and you described it and let me know you've seen them as well. Nowhere in the bentley. I've got it installed exactly like I found it. The last thing I wanted to do was reinstall some PO's misguided attempt to thwart a leak or something only to find out it sits in there and clicks and rings while the engine is running later. Thank you so much for chiming in. Literally heading out and by the time you read this the pulley will be bolted on.


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