GM 3.6 VVT

[ak diesel driver]

Short block is together

 

[MrMarty51]

I busted a piston ring attempting to slide the triple cylinder jug assembly down over the center piston.
Does that count towards anything ?
ordered another set of rings, thats $60.00 I’ll never again see.

 

[ak diesel driver]

So I replaced the 3/5/R wave plate in the tranny this morning. Wasn't a bad job at all with the tranny out. Used the sonnax repair kit for it. This is supposed to be the number one failure on these tranny's.
Goes right behind this cover

 

[ak diesel driver]

Oh BTW those parts in the pictures are the old parts

 

[ak diesel driver]

Tracking shows the intake and exhaust valves are in Anchorage so maybe in a day or three they'll be here

 

[ak diesel driver]

Got the camshaft caps back from Chris today. They look really good, thanks Chris.

 

[MrMarty51]

The black coated areas I’m guessing is where the camshafts lay within.
Seems strange that they are at angles, and both ends not the same angle. Or is that an optoptical allusion ?

 

[ak diesel driver]

Optical delusion

 

[DieselSlug]

Whats the plans with this rig AK? Keep and use for the family or flip? I had a similar situation with a 99 Grand Cherokee I bought. Much simpler engine (4.0L) ended up dropping a piston skirt. IIRC I still have the shrapnel alongside my burnt 6.5L piston downstairs in a "memory box". Found out this box needs to grow as you get older haha.

 

[ak diesel driver]

It will be my second oldest daughter's first car. Hopefully she keeps it for awhile

 

[BIGR]

It will be my second oldest daughter's first car. Hopefully she keeps it for awhile

Give her great driving instructions or that vehicle will be destroyed in a short period of time.

 

[ak diesel driver]

Got the valves this afternoon. Already have the exhaust valves on one head lapped in.

 

[DieselSlug]

Got the valves this afternoon. Already have the exhaust valves on one head lapped in.

I'm about to take my first stab at lapping valves on the little golf cart engine. Just going to go them by hand since I only have 2!

 

[ak diesel driver]

I did them by hand on this too

 

[MrMarty51]

I'm about to take my first stab at lapping valves on the little golf cart engine. Just going to go them by hand since I only have 2!

Lap them in, then, after they are sanded all the way around, lift the valve then slap it down, repeatedly several times. The pounding down should leave a mark as to where the area that the valve is seating on, both on the head and on the valve seating area.
At least that always works when valves is fresh ground. I never before tried it after a valve is lapped in.
When I grind in the valve and the seat, I never lap them, only lift the valve off of the seat then forcefully slap it down. That leaves a line on the area where the seat area is on the valve and also in the seat. I then adjust the area where the seating is taking place on the valve,
If it is seating too close to the outer edge of the valve then I use a stone with a shallower taper to remove a slight bit away from the outer seating surface of the seat. That moves the seating area on the valve more towards the inward area of the valve seat face.
If the valves are seating too close to the outer edge of the valve it can cause the valve to burn burn out.

 

[ak diesel driver]

What Marty is describing about seat location on the valve face is pretty important. It affects how hot or cold the valve runs, too hot and you burn a valve too cold and it builds up carbon.

 

[MrMarty51]

What Marty is describing about seat location on the valve face is pretty important. It affects how hot or cold the valve runs, too hot and you burn a valve too cold and it builds up carbon.

Yup, better to have it sealing closer to the valve stem, inside of the valve seating area.

 

[MrMarty51]

I used to lap in valve seats and vlaves. After that old timer showed Me about slapping the valve into the seat then checking where that thin line is located, never did lap another valve after that.

 

[Twisted Steel Performance]

I use a cordless drill as well...

 

[ak diesel driver]

I've used a cordless but that too can be a pain. Be nice if someone made an adapter you could put in a drill to get ahold of the valve stems easier. Especially on heads like these that the stems are in a fairly deep recess.