Underpsi

is there a gasket that goes between the head and the hook for lifting the head/engine? I know there one between the t-stat housing and the hook but i never took the housing off so i don't know about the hook.
thanks

blueberry

No. The only gasket in the thermostat housing, hook, head setup is the thermostat gasket.

flashgordon

I was looking a my 91 manual and it don't show a gasket there......I thing that the small tube of rubber form the thurmostat is what seals it there also but i would put a thin layer of silcone on it any ways. the notch on the thurmostat gasket(rubber tube)gos to the thurmostat or out werds!

So your putting the head back on!

Underpsi

Ya I just layed the head on today haven't got any real torque or anything on the studs yet though and I also took pics of the o-rings but I still need to load them on my comp

flashgordon

Glad to see its going to gether again, can't what for some pic's did you port the head?

Underpsi

Ya the head was ported/polished, o-ringed, 6 new intake valves and heavy duty valve springs. Its been apart for along time! its gonna feel good to drive her again. Although I guess I can't complain too much about the 05 3500 CTD I've been driving

flashgordon

so can you tell me the diff between the two diff styles of o-ringing the block,head or what ever
still kinda lost on how thay or installed? or work!

I understand the purpose of them just not the desine.

Underpsi

o-ring is where you machine the head and insert a wire into the head. fire-ringing is where you machine the head and the block and insert a fire ring (a fire ring is the ring you see around the cylinders on a head gasket) Im pretty sure when you fire ring an engine you cut the fire ring out of the head gasket

flashgordon

thanks,still trying to under stand....think i'v got it.

Jim Lane

The sealing surface you see is the edge of the round gasket that resembles a section of hose. It passes through the hole in the lifting hook.



Make sure the vent hole with the check valve is situated correctly.



When you install the new gasket be sure the stepped end is installed into the thermostat housing. It seals the thermostat to the housing.





#3923331 is the number, sorry for the focus.



When you reinstall the 3 mounting bolts, be sure to use some anti seize or at least good grease on the threads so they don't break when you try to remove them in the future.
Jim

G1625S

Nice pics Jim--Thanks!

Underpsi

Thats great Jim thanks!

wannadiesel

Good post, Jim! That went straight into the "How do I...?" thread.