The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: jakebass12 on May 01, 2013, 11:05:41 AM

Title: bent push rod.
Post by: jakebass12 on May 01, 2013, 11:05:41 AM

i was adjusting my valves today and noticed my push rod was bent so i took it out to confirm and unfortunately it was. so my question is should i buy a brand new one from maxbmw for $40 or should i get a used pair for $25 0n ebay?

Title: Re: bent push rod.
Post by: flybot on May 01, 2013, 02:24:22 PM

If it was me, I'd go used. You arent really getting anything more or less with a used push rod as long as its straight.

Title: Re: bent push rod.
Post by: donbmw on May 01, 2013, 03:14:01 PM

You need to look for the cause. Stuck valve.

Title: Re: bent push rod.
Post by: Rob Valdez 79 R65 on May 02, 2013, 01:39:47 AM

And I am pretty sure I have a box full of them around here somewhere.  Yours for shipping.  I can send you more than one in case there is a problem!

If you ever have the jugs pulled away from the block for any reason, it is always a good idea to reach in with a magnet-on-a-stick and pull out the cam followers to make sure they are in good shape.  I believe is is only a Type 247 issue (R65s are Type 248 engines), but you want to know.

(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fwww.bmw-club.org.uk%2F%7Emidland%2Fimages%2Fcam-follower.jpg&hash=522f7c02a0f7ac4ef2881ac153cc8fff2997baf1)

Title: Re: bent push rod.
Post by: Matt Chapter on May 02, 2013, 10:59:40 AM

Quote

it is always a good idea to reach in with a magnet-on-a-stick and pull out the cam followers to make sure they are in good shape.

Tell me more Rob! Since I've still got the jug off for my valve replacement, I'm getting pretty bored.  Is there anything else (grease) necessary for reinstall of the follower?

Title: Re: bent push rod.
Post by: jakebass12 on May 02, 2013, 12:43:10 PM

Quote

And I am pretty sure I have a box full of them around here somewhere.  Yours for shipping.  I can send you more than one in case there is a problem!

thanks but i already ordered 2 off eBay. and had them express shipped to me by friday. need them for a rally here in Wisconsin. but if i ever bend another ill keep you in mind. ;)

Title: Re: bent push rod.
Post by: Rob Valdez 79 R65 on May 02, 2013, 04:38:43 PM

Quote

Quote

it is always a good idea to reach in with a magnet-on-a-stick and pull out the cam followers to make sure they are in good shape.

Tell me more Rob! Since I've still got the jug off for my valve replacement, I'm getting pretty bored.  Is there anything else (grease) necessary for reinstall of the follower?

Nope - just drop them back in there (you may need to push them in with your finger).  
If you want to get really anal about it, you could put some oil on the bottom where it contacts the cam lobe, and the top, where it pushes the push rod, but I don't think that is necessary.

Title: Re: bent push rod.
Post by: montmil on May 03, 2013, 08:07:11 AM

Jake, What caused the push rod to get all bendy on you?

Title: Re: bent push rod.
Post by: jakebass12 on June 05, 2013, 12:41:12 AM

hey sorry for the late reply. i think it was when my valve seat came loose and bent the valve and valve sleeve. i think it just bent a little so i didnt notice and over the time until it needed a valve adjustment i noticed it was bent.

Title: Re: bent push rod.
Post by: montmil on June 05, 2013, 09:45:04 AM

Case closed!