pulling valve covers
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Senior User
Joined: Jul 2004
Posts: 178
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From: Halstead, KS
pulling valve covers
I'm planning on retorquing everything under the valve covers here soon, would ya'll suggest putting new o-rings on the sticks while i'm in there?
Truck has 100k on it, runs perfect after doing bellowed uppies, hutch/harpoon & retorquing the exhaust manifolds.
I'm doing all i can to make this go another flawless 100k
Truck has 100k on it, runs perfect after doing bellowed uppies, hutch/harpoon & retorquing the exhaust manifolds.
I'm doing all i can to make this go another flawless 100k
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I had two reman injectors installed a year before I pulled them all, so this photo below shows the difference in the O-rings - old (1 and 5) and new (3 and 7). I suspect the old ones could use replacement because it's not just the miles - it's the time soaking in fuel and oil. While the sticks are out, this is a good time to inspect the cups.
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Senior User
Joined: Jul 2004
Posts: 178
Likes: 0
From: Halstead, KS
I did a search on these diesel forum sites for it. Basically i bought the bellows from summit racing, welded them into my stock up pipes, and used the chevy exhaust donut to seal at the baby's butt. I know some guys have welded the flange to the pipe up top, but i just used the donuts. I got about $80 in them.
If my truck was a DD and putting a bunch of miles per year on it I would probably have gone with the IH pipes, but i put about 5000 miles a year on it, so my DIY's should out last the truck lol.
If my truck was a DD and putting a bunch of miles per year on it I would probably have gone with the IH pipes, but i put about 5000 miles a year on it, so my DIY's should out last the truck lol.
stinson 108-1
Joined: Jan 2012
Posts: 1,015
Likes: 8
From: south jersey
I wouldn't touch the injectors on a flawlessly running truck. Time is becoming a factor as Rich said, but with 100k I'd leave it alone. Mine has 94k and is fine so far. When it shows signs then I'll do it. Just my .02.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
I'd leave them alone. I had ~125k miles on my injectors when I switched to single shots. I didn't see anything wrong with the the o-rings at that time. I now have ~80k miles on the new injectors and don't plan on doing anything with those until I'm ready for a rebuild. IIRC, Chris (F350-6) has over 400k miles on his original injectors and I don't think they've been removed. Hopefully, he will chime in on this subject. 
Laughing Gas
Joined: Sep 2006
Posts: 1,097
Likes: 9
From: Minnesota
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Logistics Pro
Joined: Apr 2010
Posts: 4,446
Likes: 26
From: Panama City, FL
If there is nothing wrong with ur truck then I would leave them alone. I only have 118k on mine and dont plan on changing them till I have to.
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Hotshot
Joined: May 2005
Posts: 13,484
Likes: 42
From: Stevens Point, WI
I agree on leaving it alone. I also don't agree on the torquing down the rockers deal people mention. When I had my covers off for reO-ringing I checked a couple rockers and what I found is the bolts in the rockers are "set in their place" from the years. In order to retorque them you need to break them free and then torque them. I checked two rockers and then quit and left them all alone.
I did the whole O-ring job because 1 I had a leaky fuel bowl o-ring and 2 while the truck ran fine I had some smoke at start up and a funny puff of smoke every now and then after leaving a stop sign.
I did find two tore out O-rings. But if you have no problems I would leave it all alone.
I did the whole O-ring job because 1 I had a leaky fuel bowl o-ring and 2 while the truck ran fine I had some smoke at start up and a funny puff of smoke every now and then after leaving a stop sign.
I did find two tore out O-rings. But if you have no problems I would leave it all alone.
Laughing Gas
Joined: Sep 2006
Posts: 1,097
Likes: 9
From: Minnesota
I agree with Snowseeker, after haveing at tucking business for 20+ years, I never retorqued injectors on anything, a couple of engines went 760'xxx miles and never did anything other that set the valves. Jmo
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