Instaling Valves

smestas · smestas's Garage

Greetings all,

I’m re-assembling my heads after they have been cleaned and measured for wear. My question is do I put any oil or other lubricants on the valve stems when re-inserting them into the valve guides? Although I am going to be putting the heads together now they will probably sit for a month or two until they are actually put back on the motor and run.

Doug Zielke · 11-08-2003, 07:32 AM

Simon....the pro who re & re'd my 3.0 heads, did put a smear of assembly lube on the valve stems.

Wayne 962 · Wayne 962's Garage

Yup, Walt uses some type of red assembly lube, but I can't for the life of my remember what it's called...

-Wayne

smestas · smestas's Garage

Could it have been Red Line Assembly Lube?

http://store.summitracing.com/product.asp?d=3&s=10&p=4337&searchtype=ecat

Wayne 962 · Wayne 962's Garage

Not sure...

-Wayne

snowman · 11-10-2003, 08:04 PM

Red line assembly lube is supposed to be the best and thats what I use. There is another type of assembly lube that is red. I do not remember the name, but I suspect that it is ok as well.

Yes you should lube the valve stems. Use at least white or moly lube or red line if its going to set a while. I guess it may be ok to use just oil if you are going to fire it up withing a few hours.

On cam shafts use ONLY red line assy lube or MOLY, no white stuff or oil. If you do not you may not have any cam lobes after a few minutes!

Wayne 962 · Wayne 962's Garage

Not really pertinent to Porsches, but I dumped a quart of oil on top of the twin overhead cams that I just recently installed on my BMW. It kept them very lubricated when I went to start up. Of course, the shafts and lifters weren't dry at the time...

-Wayne

snowman · 11-10-2003, 09:51 PM

Wayne,

Please, advise all to use MOLY at a mininum on All camshafts at startup. The initial breakin is critical to camshafts, even on chevys.

Wayne 962 · Wayne 962's Garage

Quote:

Originally posted by snowman
Wayne,

Please, advise all to use MOLY at a mininum on All camshafts at startup. The initial breakin is critical to camshafts, even on chevys.

Right - that's why I mentioned that the camshafts and lifters weren't dry - meaning that they were used and already 'worn in'. No new camshafts or lifters there.

On new parts, definitely use the Moly lube (as shown in my book). I like the LiquiMoly brand.

-Wayne