Head Job & Intake

Joined
Jul 23, 2011
Messages
53
Have the head loose and will pull off tomorrow with lower intake still on it. I got aggravated trying to get the harness off so I considered leaving intake in vehicle but then got aggravated trying to get rear intake bolts/stud out. So, I went with one guys method of pulling harness out from computer under dash. I found that part MUCH easier. FSM has whole intake remaining on head after removing harness. Any reason I shouldn’t put intake all back together before going back in??

Seems to me to be a great way to get all the hoses, fuel rail, upper intake all back together so much easier. I’m using a engine hoist to lift head straight up and so I can go back in with it suspended and controlled to be able to come straight down over timing chain.

Ideas welcome but am I nuts or is this the way to go?!
 
Joined
Jan 29, 2019
Messages
87
Location
Portland, Oregon
I left lower intake in the vehicle along with the harness. Cleaned upper intake well on the bench and did all hoses. If I remember correctly fuel filter is also connected to upper intake and is pretty much impossible to get to when the intake is bolted together. Good idea to replace it as well.
 
Joined
Jul 23, 2011
Messages
53
Thanks. Here are pics of head and block. I don’t know how to read the signs here. Does anyone see anything problematic? This is original head gasket with 349k miles.

FB5428B1-39BF-495A-A65F-DFA1CB9B708F.jpeg


E1D28938-FA5D-47C1-861B-AA4209A995A6.jpeg


42C6D4D5-7C2E-4C4C-B297-8A36B8F1D6F2.jpeg
 
Joined
Dec 10, 2007
Messages
8,983
Did you pull the head due to overheating, sudden rough running engine, loss of coolant, or just as a PM?
 
Joined
Jul 23, 2011
Messages
53
Nine of the above really. I’m putting at turbo on it (thanks Joey) and it compression was too low.
 
Joined
Dec 10, 2007
Messages
8,983
What were the numbers? Leak down test also?
 
Joined
Jul 23, 2011
Messages
53
Compression from 1-6
120
140
125
140
135
40

I’m not sure #6 is accurate but suffice to say they are all low. I can’t get short blocks right now. Going to put reworked head back in once I get it back Friday. Then turbo goes on. I understand risks.

Will look for my notes on leakdown as I did that back in January.
 
Joined
Jan 5, 2017
Messages
4,028
Location
Charlotte, NC & Alexandria, VA
I second installing the lower plenum, but not the upper. Too much routing to do to make it cost effective to install both upper/lower. Or, you could leave them both off; depends on how you like working over your head to install the lower plenum. Even on a lift, you're working over your head. Unless you have the engine out. Then it's a horse of a different color.

Do install the exhaust manifolds prior to head install though, or at least the rear. Those rearmost two bolts are a true PITA. You could leave leave the nuts on the front loose, just to get the pipes connected, but those rear two nuts have to be tight before it goes in.

FWIW, I'll never pull a head without the engine, and probably the transmission, again. Saved no time at all. And added to the frustration of getting the "while you're in there" jobs done.
 

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