motor is locked up and will not spin
Thread Starter
Registered User
Joined: Oct 2000
Posts: 460
From: orlando, fl
Re: motor is locked up and will not spin
pulled the plugs, still seized....
drained the oil and 3.5gal of oil and coolant came out.
whats the next step???pull the heads and see whats salvagable???
drained the oil and 3.5gal of oil and coolant came out.
whats the next step???pull the heads and see whats salvagable???
Registered User
Joined: Apr 2006
Posts: 129
Re: motor is locked up and will not spin
Originally Posted by Ws6Envy
pulled the plugs, still seized....
drained the oil and 3.5gal of oil and coolant came out.
whats the next step???pull the heads and see whats salvagable???
drained the oil and 3.5gal of oil and coolant came out.
whats the next step???pull the heads and see whats salvagable???
did you install the heads? if so, did you use thread sealer on the bolts/studs? they go through water on sbc's. i have heard of guys not doin that and ******* their bearings real quick.
Registered User
Joined: Oct 2001
Posts: 6,070
From: newton, kansas, USA
Re: motor is locked up and will not spin
Originally Posted by oneslowz28
sounds like whoever assembled it used motor oil instead of assembly lube. my friend just had this happen to his fully built carb 350 that cost 4k. the builder uses motor oil instead of assembly lube and right around 1000 miles one of the pistons exploded and we noticed that all of the berings (rod and main) were chewed to peices. and the rod from where the piston exploded had almost no berring at all was left. when we contacted the builder he claimed to have no responsibility for the problems and when i called back and acted like a intrested customer i asked what he used for assembly lube and he said that all of his builds use motor oil for assembly lube. well thats all fine if you plan to start the engiine 30 min after its built but if it takes 3-44 weeks like it did him then all of that oil has seeped back out and left nothing but metal to metal contact
Registered User
Joined: Dec 2004
Posts: 655
Re: motor is locked up and will not spin
Originally Posted by Ws6Envy
assembely lube was used for certain.
the starter is off the car right now and still will not manually turn
the starter is off the car right now and still will not manually turn
Last edited by Evil Eric; Aug 21, 2006 at 07:57 PM.
Registered User
Joined: Apr 2003
Posts: 2,628
From: Pgh, PA
Re: motor is locked up and will not spin
No, the head gasket probably blew out. The most common cause for a failure so soon, would likely be not tightening the heads down in the right sequence. Also, you should "asquish the gasket down by torqueing the heads down a couple times on a ML head gasket. I would think something laong these lines is explaining it. Or somethign that caused abnomally high cylinder pressures and was enough to blow the gasket but the forged parts took it though
Registered User
Joined: Feb 2002
Posts: 519
From: Talbott, TN
Re: motor is locked up and will not spin
Originally Posted by Z95m6
So you're saying that if a car sat in storage for a month or two the motor would just grenade on start up because all the oil "seeped" out? Damn i had better not start my Mach 1 up, its been sitting since April with out being started.
I guess I have been lucky last couple of years when starting mine up in the Spring
However I too recommend assembly lube as it is a very good insurance policy if you have start up oiling problems and you catch them right away you may save your engine. You know how that very first start up is a nervous one even if you primed the oil system. Guages get watched like a hawk and you are looking for leaks on thegarage floor like every 10 seconds
Registered User
Joined: Jun 2002
Posts: 452
From: UCF
Re: motor is locked up and will not spin
I was in the car in the process of tuning it when this happened. Not 5 minutes before this happened everything looked ok according to the datalog. (I am still attempting to pull the log off of my laptop since the Adrive doesn't work, and will post it whenever I do so). The timing table was based off of my car which has a smaller cam and stock displacement, so there is no chance that it was detonationg as my timing was not excessive. It was also running negative BLM's (computer pulling fuel out), so it did not see any lean conditions the whole time leading up to when it seized.
Rob, please keep me updated with what you find if/when you pull the motor apart.
Ryan
Rob, please keep me updated with what you find if/when you pull the motor apart.
Ryan
Thread Starter
Registered User
Joined: Oct 2000
Posts: 460
From: orlando, fl
Re: motor is locked up and will not spin
