Excessive oil consumption
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,241
Likes: 4
From: Okinawa Okinawa
Excessive oil consumption
I rebuilt the top part of my engine in Sept. Since then I have only put about 250 miles on it. I had to add an entire quart of oil yesterday. I don't have an oil leak under the car so I'm not sure where its leaking at. Could it be from breaking in the engine or is that just too much?
I put in a new cam, valve springs, roller rockers, intake, carb, fuel pump, water pump and a few other small things.
I put in a new cam, valve springs, roller rockers, intake, carb, fuel pump, water pump and a few other small things.
Le Mans Master
Joined: Aug 2000
Posts: 9,662
Likes: 7
From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Excessive oil consumption (scottw)
You are probably sucking oil in through your intake. I think Paul79 has had this problem for quite a while, it will require the intake to be pulled and new gaskets installed.
Drifting
Joined: Sep 2000
Posts: 1,355
Likes: 0
From: Germantown Maryland
Re: Excessive oil consumption (scottw)
Sometimes just retorqing the intake fixes this. I was consuming at 1 qt /250 miles and retorqed then it went to 1 qt /1500 miles. this is a much easier fix that redoing the gasket and well worth a try.
Chris :flag
Chris :flag
Melting Slicks
Joined: Oct 2001
Posts: 2,065
Likes: 1,395
From: Halifax, Nova Scotia, Canada
Re: Excessive oil consumption (scottw)
You didn't mention anything about valve seals. What type, etc...
I'm sure you have that covered, but thought I would ask anyway.
Barry
I'm sure you have that covered, but thought I would ask anyway.
Barry
Melting Slicks
Joined: Jun 2002
Posts: 2,844
Likes: 99
From: Orrtanna Pa.
Re: Excessive oil consumption (Barry's70LT1)
You won't believe how much that intake gasket squirms around when you torque the bolts. When I port matched mine,I laid a thin layer of RTV Black down on the head side of the intake gasket, then carefully placed the intake on and snugged the bolts,watching to be sure they stayed centered in the intake manifold bolt holes. The next day I pulled the intake to check the fit,and one side had slipped down. I pulled it off and baught another gasket,and did this again. Now I'm sure the gasket is in perfect alignment with the ports. I would have to agree that the oil consumtion is the intake gasket. Pull your plugs and check for oil fowling.
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Re: Excessive oil consumption (The Money Pit)
I agree great advice, take a look at the plugs if you find one or two fouled badly then it's the intake gasket, don't sweat it not a problem :D
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Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
Re: Excessive oil consumption (Twin_Turbo)
Thank you! Found it.
http://store.summitracing.com/defaul...rchtype%3Decat
[Modified by paul79, 7:56 PM 1/11/2003]
http://store.summitracing.com/defaul...rchtype%3Decat
[Modified by paul79, 7:56 PM 1/11/2003]
Race Director
Joined: Apr 2000
Posts: 17,676
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Re: Excessive oil consumption (paul79)
There is another way to do do it, you put a little silicon on the head surface of the gasket ( in the middle so it won't squish out )and carefully place the intake on and bolt it down but not too tight or put some kind of weight on it and leave it over night. Take it off in the morning and if the intake gasket is in the right place then you can torque the intake on with the confidence the silicon will hold the gasket gasket in place.
I have never done this however because I am too lazy to go thru all these steps, I am carefull that I palce the intake straight down and have not had a problem for years now :D
I have never done this however because I am too lazy to go thru all these steps, I am carefull that I palce the intake straight down and have not had a problem for years now :D
