Using water
Thread Starter
Registered User
Joined: Dec 2010
Posts: 6
Likes: 0
Using water I have a 5.3 and didnt know if anybody else has had any problem with blown headgaskets or a cracked head or block. Its using water pretty fast and is blowing it out the exhaust but the oil is clean. Just seeing if anybody else has had a problem with the samething??
WHo uses straight water in their coolant system?
If it's blowing out the exhaust you sir have a blown head gasket! It all depends where its blown it doesn't always mix with the oil.
If it's blowing out the exhaust you sir have a blown head gasket! It all depends where its blown it doesn't always mix with the oil.
i have a friend running that block with no issues, good luck,
You need to pull those heads and get them re-surfaced if you want to cure the problem. Or if its cracked, time for new heads. I wouldnt just replace a gasket. It can and will pop again. You probably just had it give out on a water jacket.
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
First, you need to see IF and WHERE the problem is before you start turning wrenches. I would highly recommend a cooling system pressure check. If you don't feel comfortable diagnosing this then take it to a shop and have them do the check. By pressuring up the radiator, the air/pressure will escape if there is something wrong (meaning crack or bad gasket). If the test reveals an obvious issue then you can plan your repair from there.
Trending Topics
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Did the motor run hot at some point? I think the stock graphite gaskets are pretty forgiving to tolerances but the MLS are not. Is this a stock headed motor or have they been removed in the past?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Pressure test isn't the best way buy a block test kit they are cheap and will tell you if you have a leak between combustion and cooling passages. This is the way a good shop will diag the problem and its what I do at my work. A pressure test doesn't always work cause it could be a small leak and you wont see it as where combustion gasess have far more pressure and will exit the cooling system at easiest point. Napa sells block test kits
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Banned
Joined: Oct 2009
Posts: 992
Likes: 1
If it was overheated at some point you may have loose headbolts...check um. the head bolts will stretch and lose tension on the head and gasket if the engine is overheated. You may get lucky by just retightening them believe it or not.
Thread Starter
Registered User
Joined: Dec 2010
Posts: 6
Likes: 0
I dont know it hasnt been hot since ive had it. I just got it running not too long ago. It does has the mls gaskets and I dont think they have been off before its suppose to be a pretty low mile motor..
