LSD Rob

I just picked up a camshaft for the ole' truck today. I have a question upon after install about the valve lash, the guy told me for the intake side to be set at 7 thousands and exhaust at 8 thousands, now to me that seems a little tight and that is for when the engine is warm. So my question is what to set the valve lash at when I first get the sucker in there when the engine is cold?

cam specs are: 261° duration, .410" valve lift

Thanks in advance
Robert

Outsane

Do you know who made the cam?

you could ask them for confirmation

fierohink

I run one of EB's cams and I still run stock valve lash.

LSD Rob

did you set up the stock valve lash with the engine cold and for "break in"?

fierohink

What's this break-in you speak of???

Um, I installed the cam, set the lash cold to OE stock specs, and put 100k miles on it with adjustments every January.

That might not be the best method of break-in, but it worked for me.

LSD Rob

WEll thank you fierohink. Everyones advice is always appricated!

fierohink

Just use some assembly lube when you put it together and you'll be fine.

fierohink

Are you doing a head gasket now as well? You have to take the valve train out to get to the cam caps, I know you can usually get away with this without pulling the head and replacing the head gasket but just keep that in mind.

LSD Rob

Planned on the assembly lube. Not my first time installing a cam just first time with a brand new one and first time on a toyota engine. Hopefully just as easy as a Honda LOL

LSD Rob

No my head gasket is fine. Has a newer japer engine installed with less than 40k miles

fierohink

It has been my experience with diesel motors, I do a lot of hop-up work on 7.3l powerstrokes, that the more miles on the motor the less likely the head gasket is to go after pulling the head bolts. More heat cycles equals a stronger bound between head gasket and block.

waynesworld

LSD Rob

That makes perfect sense to me. If the gasket goes I'll replace it then. Speaking of 7.3's where would I be able to find a cam for one? My buddy is going to be doing quite a bit of work to his but hasn't been able to find a cam yet.

fierohink

There really isn't a need to replace the cam. Diesels don't really work the gassers do, especially the PSD. Basically you need to find out what your friend wants and how much he wants to spend. I have a DD that gets 16-18mpg and pulls around 530ftlbs and maybe just under 1k hp all on pump diesel. That of course was after injectors, big turbo, aftermarket engine management, high po HPOP, high fuel fuel pump, and still all stock internals.
PM me if you want some good reading.