The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: the_admiral on August 01, 2009, 01:12:56 PM

Title: valve guides
Post by: the_admiral on August 01, 2009, 01:12:56 PM

hi all again,i am am in the process of fitting new exhaust valve guides on my 81 r65 and i am just waiting for them from motorworks.the old one have come out quite easily with a bit of gentle heat.has anyone got any good tips on reffiting the new ones,i was going to heat the head and put the guides in the freezer overnight.any ideas on a suitable drift so as not to damage them,thank peter

Title: Re: valve guides
Post by: Justin B. on August 01, 2009, 02:53:03 PM

The heat and freeze method should work good and maybe tap 'em in with a plastic or rawhide mallet.

Title: Re: valve guides
Post by: Motu on August 01, 2009, 06:55:49 PM

A valve guide drift fits down inside the guide to prevent damage....they came in various sizes.If you know someone with a lathe they could turn one up easy enough.But they should tap in no problem.

Title: Re: valve guides
Post by: weasel01 on August 02, 2009, 04:49:06 PM

Yo Admiral, what caused the need to replace them?
Just curious?

Title: Re: valve guides
Post by: the_admiral on August 03, 2009, 04:22:27 PM

hi thanks for the advice guys,
Amplifier i am replacing them because when checking the tappets there was a fair amount of play side to side on the exhaust valve guide and this could lead eventually to a dropped valve,also she was a bit smokey on start up,cheers
 ps any tips on posting pics anyone