mmmm, i figured the design was for the oil pressure to open the spigot so the oil (and pressure) were diverted away from the cam gallies when the pressure exceeded the spec; meaning the default was to send oil to the cam (etc) *unless* the pressure was too high.





can you call out these TSB's (name,date, number), if possible? i find mention of the ORP in two (as sidenotes to the ticking problem), but no bulletin specifically on the ORP, which i'd like to see. same with the rockeer shafts and rockers.



i've seen a thread on this somewhere where the guy went that route for the specific ones that showed the excessive wear. it had some good photographs, too. have you seen it? if not, i'll try to hunt in down in an old Bookmark list.

thanks


//bc

Right. The bullitin wasn't specifically for the ORP Valve and shafts/rockers. They were mentioned as possibble problems relating to lifter noise. Sorry for the confusion.

OK, thanks.
i found the thread i was talking about with photos etc of the cams. it's in the planetisuzoo hall of fame (archive) section
http://forum.planetisuzoo.com/viewt...=0&postorder=asc&start=0

here's one of Staypuft's pictures



are you going to be taking any photo's.

//bc

trooperbc that is a great link. It describes exactly the same wear points that I seen when I pulled the cam and rockers before. I'm not going to pull the cam again. Too much work for uncertain results. I called the number on falconglobal's ebay site. they priced a rockershaft for $36.71, exhaust rocker arms at $35.31. I believe the lifters I bought from them previously were around $5. I think I'm going to basically follow what staypuft did being we seem to have the same were points and what he done apparently worked. I'll probably put a new OPR valve in if affordable. Then I'm selling it! Bought a a 92' LS with a good ole underpowered 3.1. Maybe it won't cost a small fortune for repairs. Funny thing though...mine and staypufts issue's were both on the passenger side.

Well, I decided to put it back together with the OPR vlv blocked off. I just don't want to spend anymore money on this particular motor. So far there is no difference in the vlv noise. No doubt because of the wear in the valvetrain. I still believe that blocking off the OPR vlv would be a good idea. Obviously the valvetrain needs more oil to prevent premature wear. Just my opinion. Thanks for everyone's response and please post if you try this and let us know how it works out for you.