HarleyTechTalk

Technical Forums => EVO 1340 => Topic started by: stafford on May 13, 2022, 08:27:14 PM

Title: adjusting pushrods
Post by: stafford on May 13, 2022, 08:27:14 PM
I'm helping a friend of mine that has an 84 tourglide. It's almost time to adjust the pushrods, It's supposed to have an s&s cam in it, not really any reason to doubt him on that. I have no idea how to  set the pushrods. Any body willing to share their favorite way of doing it.
BTW he rode the dickens out of it a couple years ago, all day and he said he wasn't easy on it at all.
For whatever reason it was about a year later he was going to start it and it wouldn't start. had no compression on the front cylinder. turned out it had a bent exhaust valve.  For the life of me i can't get hold  of how it could bend a valve setting on the carport. Yall have any ideas?
Thanks folks, Stafford
Title: Re: adjusting pushrods
Post by: Ohio HD on May 13, 2022, 08:34:52 PM
Chances are the valve was stuck in the guide from sitting. Then the piston smacked it when he tried to start it.
Title: Re: adjusting pushrods
Post by: kd on May 13, 2022, 08:43:26 PM
 :agree:  It's the most likely reason.  Weather can be a looker with outside storage.
Title: Re: adjusting pushrods
Post by: stafford on May 14, 2022, 03:31:11 PM
That is most likely what happened to the valve. how much preload should I use for the pushrods?.   i've adjusted my twin cam several times. do it about the same"
Title: Re: adjusting pushrods
Post by: stafford on May 14, 2022, 07:17:17 PM
one more question, how much should the studs stick out of the top of the cylinder
Title: Re: adjusting pushrods
Post by: Ohio HD on May 14, 2022, 08:22:47 PM
Early Evo motors the stud measures 5.670" to 5.770" above the engine case.
Title: Re: adjusting pushrods
Post by: Ironheadmike on May 17, 2022, 05:51:38 PM
What kind of threads does your pushrods have tells how many turns. With the pushrod set with no slop adjust .100 to .120.