6.9 Locked Up?
Junior User
Joined: Jun 2003
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From: Bottom Feeder
Yeah...I think so too. Not sure what all the circumstances are, but if I got that response from a shop working on my truck, I'd call them up and tell them I changed my mind, and I'd go somewhere else. And $900 to do an engine swap sounds steep to me. I've never done one on these trucks, just sounds high.
Lobstah
Lobstah
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New User
Joined: Aug 2003
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From: Midwest
$900 does sound steep, but the "book" says it's a 15.5 hour job to remove and replace the engine - so at $60/hr, that's about right. These things sure are damn expensive!
This shop has contracts with all kinds of big companies, and I've never heard a bad word about them, but man... I am having second thoughts about the whole thing now.
I'm getting ready to go talk to 'em and see "what kind of big differences" there really is. Maybe I should print this thread out and take a copy !
This shop has contracts with all kinds of big companies, and I've never heard a bad word about them, but man... I am having second thoughts about the whole thing now.
I'm getting ready to go talk to 'em and see "what kind of big differences" there really is. Maybe I should print this thread out and take a copy !
Junior User
Joined: Jun 2003
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From: Bottom Feeder
Might also want to post over on the other forum at dieselstop. There are some real experts there that might have a better sense for what's going on. Good info here, but in situations like this, more is better.
Lobstah
Lobstah
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From: Midwest
Well, after I went and seen the man, he said," I was wrong yesterday, it is a stock 6.9 w/ aftermarket turbo." 
I'm having them replace the rear main seal and the oil pan gaskets before they put the new engine in. Any other piddly things I should have 'em do to it before installation?
Thanks for all the info and help so far. - Vince
I'm having them replace the rear main seal and the oil pan gaskets before they put the new engine in. Any other piddly things I should have 'em do to it before installation?
Thanks for all the info and help so far. - Vince
More Turbo
Joined: Nov 2000
Posts: 715
Likes: 11
From: Erie, PA
I hate to say it, but I have seen it many many times. When you turbo a 6.9/7.3 without installing new valve springs and keepers is simply asking for a failure. For whatever the reason, the 6.9/7.3's seem to swallow valves whenever turbocharged. I think once you get your engine back home and pull the heads you will find a valve shaking hands with a piston.
Posting Guru
Joined: Oct 2003
Posts: 2,438
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From: Monroe, WA
I've turbo'd around 40 early fords and have never had any valve problems. I have heard, you don't reuse exhaust valves on a rebuild. They don't like being reground. Have yet to see any dropped valves though.
Hey VMAC, why don't you pull the valve covers off and see if I will have to eat any crow?
Hey VMAC, why don't you pull the valve covers off and see if I will have to eat any crow?
Last edited by Spectramac; Oct 14, 2003 at 09:47 PM.
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New User
Joined: Aug 2003
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From: Midwest
The shop says tomorrow I'll get her back, along with the old engine too. As soon as I get past the excitement of getting " a new truck again" (only got to drive it 3 weeks, then it went down for 2 1/2 months!), I will definetly disassemble the old 6.9 and see what's up inside. Might keep it to rebuild and have ready just in case. Thanks for all the help. As soon as I figure it out, I'll let y'all know.
-Vince
-Vince
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More Turbo
Joined: Nov 2000
Posts: 715
Likes: 11
From: Erie, PA
Spectramac,
Thats cool, that makes me want to turbo mine even more. Three people I know personally had their 6.9/7.3 swallow valves, right after putting on a banks turbo system. It was probably going to happen anyway I suppose. The funniest (not for him) is that about 20 minutes after the system was installed, it swallowed an intake valve. Talk about bad luck
Thats cool, that makes me want to turbo mine even more. Three people I know personally had their 6.9/7.3 swallow valves, right after putting on a banks turbo system. It was probably going to happen anyway I suppose. The funniest (not for him) is that about 20 minutes after the system was installed, it swallowed an intake valve. Talk about bad luck
Posting Guru
Joined: Sep 2002
Posts: 1,897
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From: Northeastern Pa - USA
I have done 20 ats turbo systems, no valve problems. try looking for a swallowed valve, dropped pre-cup chamber or water in a cylinder. since it was already running, i'd think hardware falling from the head.
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New User
Joined: Aug 2003
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From: Midwest
Thanks for all the help. The shop got the ol' beast all put back together and now she's doing great. A couple things are different though: This engine is much quiter than the last. Maybe the timing on the old one was too advanced? This one sounds nice, good diesel sound, without all the rattle. They put my Hypermax turbo on the new engine, but I don't think they turned up the fuel. I only say this because it doesn't smoke at all!! It runs great and has plenty of power, and no black smoke!! If it hasn't been turned up, will it hurt to run it lean? Other than that, no complaints. I can even hear the turbo over the engine now 
Posting Guru
Joined: Sep 2002
Posts: 1,897
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From: Northeastern Pa - USA
If the fuel isnt "tuned up" you wont get the full advantage of the turbo. Go to an injection shop and have them set the fuel. Too much black smoke (unburnt fuel) means you are only wasting fuel.
More Turbo
Joined: Nov 2000
Posts: 715
Likes: 11
From: Erie, PA
VMACF250,
You need to purchase a "pyrometer" which is basically a temperature probe that reads the temp of the exhaust gas. You need to install this in one of the pipes as close to the manifold as possible but still have access to it. Trust me, the best investment you can ever make if you have a turbo.
Then open the side cover of the injection pump, 2 screws hold it on and then put your front crank pully at 12o clock positition. You should see of feel a allen screw deep inside, if not, rotate the engine 180 degrees and try again. Once you find the screw I beleive it is a 5/16", you will need to turn it CLOCKWISE 1 or 2 flats of the allen wrench. Then take it for a drive, the guage should never exceed 1000 degrees. It is safe to take it there for short periods.
You cannot hurt a diesel running it to lean, but if you overfuel, the combustion gas will be too hot and cause the pistons / valves to melt.
You need to purchase a "pyrometer" which is basically a temperature probe that reads the temp of the exhaust gas. You need to install this in one of the pipes as close to the manifold as possible but still have access to it. Trust me, the best investment you can ever make if you have a turbo.
Then open the side cover of the injection pump, 2 screws hold it on and then put your front crank pully at 12o clock positition. You should see of feel a allen screw deep inside, if not, rotate the engine 180 degrees and try again. Once you find the screw I beleive it is a 5/16", you will need to turn it CLOCKWISE 1 or 2 flats of the allen wrench. Then take it for a drive, the guage should never exceed 1000 degrees. It is safe to take it there for short periods.
You cannot hurt a diesel running it to lean, but if you overfuel, the combustion gas will be too hot and cause the pistons / valves to melt.
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