Valve Cover Gaskets
Thread Starter
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Senior User
Joined: Jul 2010
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Valve Cover Gaskets
I am about to R&R the valve covers on the 6.9. Any other normal leak sights? Or 6.9/7.3 IDI tips?
I spill most of the oil when A) the oil is at the full mark B) at high RPM like on the highway (no OD
).
I plan on spraying the engine down with oven cleaner before pulling the covers.
I spill most of the oil when A) the oil is at the full mark B) at high RPM like on the highway (no OD
). I plan on spraying the engine down with oven cleaner before pulling the covers.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
1; don't spray down a hot running engine or you can kill the injector pump. Even a hot engine thats resting is still pushing it.
2; get rubber gaskets, not cork
3; when are you checking your engine oil level?
10 minutes after a hot shut down is the ideal time since the dipstick is calibrated to a hot engine (with that amount of oil, it does make a difference).
filling up to the top of the operating range isn't needed either and often high oil consumption on older IDIs can be reduced significantly by running at, or slightly below the half way mark (again, thats on a hot engine).
2; get rubber gaskets, not cork
3; when are you checking your engine oil level?
10 minutes after a hot shut down is the ideal time since the dipstick is calibrated to a hot engine (with that amount of oil, it does make a difference).
filling up to the top of the operating range isn't needed either and often high oil consumption on older IDIs can be reduced significantly by running at, or slightly below the half way mark (again, thats on a hot engine).
Thread Starter
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Senior User
Joined: Jul 2010
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Thanks. I am going to use the rubber Felpros.
I quit topping off the oil a long time ago. The last quart always went faster than the rest. I was hoping that replacing the VC gaskets would stop that problem. I worry about long highway trips and loosing a lot of oil on the way.
I did not think about the injector pump, but I never spray down a hot engine anyway. Exhaust manifolds can crack.
I quit topping off the oil a long time ago. The last quart always went faster than the rest. I was hoping that replacing the VC gaskets would stop that problem. I worry about long highway trips and loosing a lot of oil on the way.
I did not think about the injector pump, but I never spray down a hot engine anyway. Exhaust manifolds can crack.
Postmaster
Joined: Jan 2010
Posts: 4,319
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From: Elk City, OK
yes, you gotta push the bracket that holds the filter housing to get one bolt. other then that, its cake.
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Junior User
Joined: Jul 2010
Posts: 82
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From: VA
Hi Guys,
I need to replace them on my 1988 7.3 f250, any tips for this?
I'm not sure how much stuff I will need to remove.
Dan
I need to replace them on my 1988 7.3 f250, any tips for this?
I'm not sure how much stuff I will need to remove.
Dan
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Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
You don't really need to remove much to gain access to the valve covers on these engines. On the drivers side you will have the air intake duct. On the passenger side there is the main engine connector connector that you can unplug and the dipstick tube bracket that will need to be removed.
Tuned
Joined: Apr 2002
Posts: 328
Likes: 93
When I first bought my 89 F-350 7.3 IDI (5 or 6 years ago). It leaked oil bad! Before replacing any gaskets, someone on this forum suggested that I clean the CDR (tuna can) valve behind the air cleaner. I did that and still have not replaced any gaskets! It made a HUGE difference.
Tuned
Joined: Apr 2002
Posts: 328
Likes: 93
Crankcase Depression Regulator or something like that? It is actually shaped like a tuna can. Do a search on the proper cleaning & testing procedure. It was good advice that someone gave me, it worked, and it's worth passing on!
