Engine worries.....Please help
Thread Starter
Intermediate
Joined: Jan 2004
Posts: 29
Likes: 0
From: Los Angeles Ca
Engine worries.....Please help
I have just bought '87 with 151k and issues with the pressure in the lifters. I was thinking about replacing my heads to the fast burn aluminum heads when I replace the lifters. What else should I do? Is 151k too much for the fastburn heads? I dont want to destroy my rings and I dont want to rebuild the block, but she doenst leak oil and the L98 is furious..........
What to do??
Capt. Crunch
[Modified by Capt. Crunch, 10:08 AM 2/2/2004]
What to do??
Capt. Crunch
[Modified by Capt. Crunch, 10:08 AM 2/2/2004]
Race Director
Joined: Sep 2001
Posts: 14,623
Likes: 748
From: NEwhere Ohio
Re: Engine worries.....Please help (Capt. Crunch)
I concur. Rebuild it better than before. Ive heard that doing a heads/cam mod on a motor with a lot of miles already can accelerate ring wear.
Drifting
Joined: Feb 2003
Posts: 1,292
Likes: 0
From: Beavercreek OR
Re: Engine worries.....Please help (dizwiz24)
I concur. Rebuild it better than before. Ive heard that doing a heads/cam mod on a motor with a lot of miles already can accelerate ring wear.
Burning Brakes
Joined: May 1999
Posts: 1,189
Likes: 0
From: Lewisville Texas
Cruise-In II Veteran
Re: Engine worries.....Please help (dizwiz24)
With that many miles I really can’t tell you what to expect. Rebuilding the motor is always a good idea to make sure you are starting with a solid base, but that is also an expensive idea. My suggestion is to do a leakdown test to see how well your rings are holding pressure. That will tell you where the rings are but you still will not know how well the bearings and other things are.
Le Mans Master
Joined: Aug 2003
Posts: 9,884
Likes: 3
From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Re: Engine worries.....Please help (Thumper)
:iagree: esp if you cant affort a rebuild....at least you'll know where you're starting from and going too :thumbs:
Thread Starter
Intermediate
Joined: Jan 2004
Posts: 29
Likes: 0
From: Los Angeles Ca
Re: Engine worries.....Please help (vinnies87)
thanks guys,
I think I will have a leak down first. The lifters worry me because they are singing the "low pressure"song. I cant rebuild until summer, should I change the lifters and the cam? What HIPO cam will work? Grand Sport, LT-1, LT-4, etc??
Capt. Crunch
[Modified by Capt. Crunch, 1:46 PM 2/2/2004]
I think I will have a leak down first. The lifters worry me because they are singing the "low pressure"song. I cant rebuild until summer, should I change the lifters and the cam? What HIPO cam will work? Grand Sport, LT-1, LT-4, etc??
Capt. Crunch
[Modified by Capt. Crunch, 1:46 PM 2/2/2004]
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Burning Brakes
Joined: May 1999
Posts: 1,189
Likes: 0
From: Lewisville Texas
Cruise-In II Veteran
Re: Engine worries.....Please help (Capt. Crunch)
thanks guys,
I think I will have a leak down first. The lifters worry me because they are singing the "low pressure"song. I cant rebuild until summer, should I change the lifters and the cam? What HIPO cam will work? Grand Sport, LT-1, LT-4, etc??
Capt. Crunch
[Modified by Capt. Crunch, 1:46 PM 2/2/2004]
I think I will have a leak down first. The lifters worry me because they are singing the "low pressure"song. I cant rebuild until summer, should I change the lifters and the cam? What HIPO cam will work? Grand Sport, LT-1, LT-4, etc??
Capt. Crunch
[Modified by Capt. Crunch, 1:46 PM 2/2/2004]
[Modified by Thumper, 5:30 PM 2/3/2004]
Race Director
Joined: Nov 2000
Posts: 17,103
Likes: 39
From: stop the fun suckers
Re: Engine worries.....Please help (Thumper)
The cam I used from comp cam works well in the stroker.. It idles like the stock cam (due to the bigger cubes), but has numbers similar to the hotcam (A tad bigger with equal rocker arm ratios). It is available for L98's! My Machinist had recommended that I dont replace my roller lifters.. I listtened and they ticked.. for the 179.00 bucks new ones will cost you I would replace them..
As for rebuilding the motor.. You could go ahead and buy the heads and run them on your car.. Even when the bearings let go you'll still have them.. (you mentioned you were rebuilding soon anyways).. This way you could enjoy some fun before your rebuild and not worry about killing the engine since your rebuilding anyways!
:steering:
Thumper - Sweet avatar! GO BUCKS! :thumbs:
As for rebuilding the motor.. You could go ahead and buy the heads and run them on your car.. Even when the bearings let go you'll still have them.. (you mentioned you were rebuilding soon anyways).. This way you could enjoy some fun before your rebuild and not worry about killing the engine since your rebuilding anyways!
:steering:
Thumper - Sweet avatar! GO BUCKS! :thumbs:
Race Director
Joined: Mar 1999
Posts: 16,950
Likes: 0
From: Stafford, Virginia Kittah, Kittah, Kittah...
Re: Engine worries.....Please help (86Moon)
I concur. Rebuild it better than before. Ive heard that doing a heads/cam mod on a motor with a lot of miles already can accelerate ring wear.
:iagree:
:iagree:
My very first car was a hand me down from grandma, a 71 Buick Skylark with a 350... I pulled the heads at 125K miles and had a performance valve job done on them and when I put it back together it ran like it had a different cam in it...
Needless to say, being 16 and not very responsible/mature yet as far as driving goes (grew up on dirt roads watching Dukes of Hazzard :D ) I put my foot in it constantly... Within a month I was burning a quart of oil every tank of gas... :cry It wasn't a problem with the heads/valve guides/seals as I gave the motor to my best friend who rebuilt it, the heads were fine on inspection... The motor was just too tired to take much abuse from the new heads...
Race Director
Joined: Aug 2002
Posts: 13,356
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From: tucson AZ
St. Jude Donor '04 & '05
Re: Engine worries.....Please help (Capt. Crunch)
151k? Damn. Did you get any paper work with it. Like maintance done or needed.
Was it cheap?
What did you pay for it.?
You don't have to tell me.
Was it well taken care of?
tony
:confused:
Was it cheap?
What did you pay for it.?
You don't have to tell me.
Was it well taken care of?
tony
:confused: