Re: 78 Utiline Build
[Re: Webster]
#2263012
03/04/17 12:46 AM
03/04/17 12:46 AM
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Joined: Jul 2003
Posts: 700 Phoenix, AZ
MoPwer
OP
super stock
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OP
super stock
Joined: Jul 2003
Posts: 700
Phoenix, AZ
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Love your truck... Thanks, man. Wish I could drive the damn thing...
-78 Utiline (5.7 Hemi)
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Re: 78 Utiline Build
[Re: MoPwer]
#2263840
03/05/17 06:00 PM
03/05/17 06:00 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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You'll get there. A lot quicker than I will.
I have mechanical Aptitude. I can screw up anything.
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Re: 78 Utiline Build
[Re: MoPwer]
#2264694
03/07/17 01:57 AM
03/07/17 01:57 AM
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Joined: Jul 2003
Posts: 700 Phoenix, AZ
MoPwer
OP
super stock
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OP
super stock
Joined: Jul 2003
Posts: 700
Phoenix, AZ
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Took the heads back to the shop and they took the offending valve out. It wasn't a tight guide. Somehow something melted to the valve shank when it was open and it jammed into the guide. You could drop the valve in the guide upside down and it was free until it hit the bad spot on the valve. No idea what it was.
He offered to get another valve and install it but I just had him file down the spot since it was only about 1/4" from the end of the guide when closed, polish it, resurface the valve, ream the guide and reinstall.
Since I was in the neighborhood, I dropped them off at my machinist to machine the valve cover sealing surface. It was pretty rough and I can't get them to seal. Should fix that problem. Should be done next week.
-78 Utiline (5.7 Hemi)
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Re: 78 Utiline Build
[Re: MoPwer]
#2280459
04/01/17 06:07 PM
04/01/17 06:07 PM
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Joined: Jul 2003
Posts: 700 Phoenix, AZ
MoPwer
OP
super stock
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OP
super stock
Joined: Jul 2003
Posts: 700
Phoenix, AZ
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I was taking the heads apart to clean them and found 2 more tight exhaust valves with the same galling. I talked to my engine builder buddy and he thinks that the cheap valves I bought for it weren't hardened properly. So, now I'm looking for a set of SS valves. He also talked me into porting the bowls while they are apart. They will be getting 2.08 intakes but the bigger 1.74 exhaust valves.
Last edited by MoPwer; 04/01/17 06:07 PM.
-78 Utiline (5.7 Hemi)
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Re: 78 Utiline Build
[Re: MoPwer]
#2284919
04/09/17 05:47 PM
04/09/17 05:47 PM
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Joined: Jul 2003
Posts: 700 Phoenix, AZ
MoPwer
OP
super stock
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OP
super stock
Joined: Jul 2003
Posts: 700
Phoenix, AZ
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While I'm waiting for the new valves, I decided to do some pocket porting on the exhaust. Opening the bowls should help quite a bit. Was able to conservatively open them up 0.100". Also the exhaust manifold ports were way off on the outer cylinders so I fixed that too.
Last edited by MoPwer; 04/10/17 11:58 AM.
-78 Utiline (5.7 Hemi)
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Re: 78 Utiline Build
[Re: MoPwer]
#2289214
04/17/17 02:00 AM
04/17/17 02:00 AM
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Joined: Jul 2003
Posts: 700 Phoenix, AZ
MoPwer
OP
super stock
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OP
super stock
Joined: Jul 2003
Posts: 700
Phoenix, AZ
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When the shop rebuilt the heads they put .029" spacers under all of the springs. When I measure the installed spring height (without the spacer), I'm getting 1.86" with calipers. From what I've read, this is the bottom of spec. I put a dial indicator on the cam to check lift and got .288". With the rocker ratio being 1.5:1, that should give me .432" max lift. I put one of my springs in a vice and compressed it until it was almost bound up. That measurement was 1.325". If you take the installed spring height 1.86" and subtract the max lift .432" that gives you a compressed spring height of 1.428". If you subtract the spacer they had in there you get a new compressed spring height of 1.399". Is that enough extra room to keep from messing something up? It's only about .074"? Do I need to have a spacer on the spring seat at all?
-78 Utiline (5.7 Hemi)
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Re: 78 Utiline Build
[Re: MoPwer]
#2296979
05/01/17 07:44 AM
05/01/17 07:44 AM
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Joined: Jan 2006
Posts: 1,400 Trumbauersville PA
ric3xrt
pro stock
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pro stock
Joined: Jan 2006
Posts: 1,400
Trumbauersville PA
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These trucks look awesome with a Dana under them. just picked up a SRT 10 Dana, for my 03 Project. Have a Dana under the 75 D100 and the Lil Red 440 swap .
Last edited by ric3xrt; 05/01/17 07:58 AM. Reason: for got photo
Truth has no agenda, but those with an agenda make their own truth. Some of us are so open minded they only see their View
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Re: 78 Utiline Build
[Re: MoPwer]
#2297064
05/01/17 12:11 PM
05/01/17 12:11 PM
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Joined: Jul 2003
Posts: 700 Phoenix, AZ
MoPwer
OP
super stock
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OP
super stock
Joined: Jul 2003
Posts: 700
Phoenix, AZ
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Clog was the brake cylinders. Replaced those. Also rerouted the brakeline to the rear. Someone replaced it at some point and ran it outside the rail. Dirt packed in between the frame rail and the tank corroded the original. Cleaned all of that out as well as the gas tank.
Fixed the fuel sending unit wire and the gauge still isn't working. I'll have to track that down. Could be the gauge. Sending unit was working.
-78 Utiline (5.7 Hemi)
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