Nighmare continue... Need help...
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,049
Likes: 1
From: kansas city MO
Nighmare continue... Need help...
I bought a used superstroker motor w/ supposedly less than a thousand miles a few mos. back and have had nothing but problems. It was built by a well known tuner and was claimed by seller to be in perfect working condition.
Finger pointing aside I would like technical opinions on what this latest round of issues are before going ahead and spending thousands more on this project. I'm also going to leave out names of all party involved for now and focus on solving the problems at hand.
Current issues:
1) Down on power, motor is making 10% less power than comparable setup
2) White smoke coming out of oil fill opening, oil cap itself is dripping w/ water condensation.
3) leakdown test shows 7%
4) Motor would not restart once it's warmed up. After a couple hours of cooling down it start right up.
Any insights would be greatly appreciated.
Bo.
Finger pointing aside I would like technical opinions on what this latest round of issues are before going ahead and spending thousands more on this project. I'm also going to leave out names of all party involved for now and focus on solving the problems at hand.
Current issues:
1) Down on power, motor is making 10% less power than comparable setup
2) White smoke coming out of oil fill opening, oil cap itself is dripping w/ water condensation.
3) leakdown test shows 7%
4) Motor would not restart once it's warmed up. After a couple hours of cooling down it start right up.
Any insights would be greatly appreciated.
Bo.
Melting Slicks
Joined: Oct 2001
Posts: 2,075
Likes: 0
From: Central NJ
Re: Nighmare continue... Need help... (boblackhardtop)
Usually the white milky buildup on the oil cap is indicative of either a blown head gasket ot cracked head allowing coolant into the oil. Pressurize the cooling system with approx 10 PSI, and see where the coolant gets pushed out of. Depending on where it comes out, you may have to tear down the engine for inspection. IM or email me if you need any more diagnostic info :cheers:
Instructor
Joined: Sep 2003
Posts: 112
Likes: 0
Re: Nighmare continue... Need help... (NJVetteGuy)
Usually the white milky buildup on the oil cap is indicative of either a blown head gasket ot cracked head allowing coolant into the oil. Pressurize the cooling system with approx 10 PSI, and see where the coolant gets pushed out of. Depending on where it comes out, you may have to tear down the engine for inspection. IM or email me if you need any more diagnostic info :cheers:
[Modified by torched you, 12:52 PM 11/25/2003]
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
Re: Nighmare continue... Need help... (boblackhardtop)
REFUND! Tattooed and myself could take a little road trip for you :auto:
Seriously, I'd not want to put any money into a motor that should already be ready to go. :banghead:
Seriously, I'd not want to put any money into a motor that should already be ready to go. :banghead:
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,049
Likes: 1
From: kansas city MO
Re: Nighmare continue... Need help... (torched you)
Guys,
Motor had hydrolocked from leaking heads which was subsequently fixed, I was told heads was pressure tested before going back in car. Motor was cleaned, everything checked before car was started.
Shop where the car is at now suspect ring problem.
Motor had hydrolocked from leaking heads which was subsequently fixed, I was told heads was pressure tested before going back in car. Motor was cleaned, everything checked before car was started.
Shop where the car is at now suspect ring problem.
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,049
Likes: 1
From: kansas city MO
Re: Nighmare continue... Need help... (JoeyG)
REFUND! Tattooed and myself could take a little road trip for you :auto:
Seriously, I'd not want to put any money into a motor that should already be ready to go. :banghead:
Seriously, I'd not want to put any money into a motor that should already be ready to go. :banghead:
What a disaster this turn out to be ! This is what happen when you don't leave well enough alone. Should have stuck w/ the SC project.
Le Mans Master
Joined: Feb 2000
Posts: 5,789
Likes: 0
From: Athens Ohio
SE Ohio Event Coordinator
CI-V Car Show Winner
Cruise-In II Veteran
Cruise-In III Veteran
Curise-In V Veteran
Cruise-In VI Veteran
Re: Nighmare continue... Need help... (boblackhardtop)
The coolant sounds like either a blown head gasket or a cracked head. If they did a re-ring they could have taken too much out of the cylinder and caused a crack. The start problem does sound like coil issues. I'd be hesitant to put much money into this project unless I could identify the whole problem.
Le Mans Master
Joined: May 2000
Posts: 5,377
Likes: 14
From: Kansas City MO
Re: Nighmare continue... Need help... (JoeyG)
REFUND! Tattooed and myself could take a little road trip for you :auto:
my c5 has only been down for about 4 weeks, and i am really hating not having it. can only imagine what its like for you.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski