Seized up 3.1
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Junior Member

Joined: Jan 2011
Posts: 91
Likes: 1
From: Austin, Texas
Car: 91 Camaro R/S
Engine: Tbi 350
Transmission: auto4
Axle/Gears: Stock
Seized up 3.1
Okay so the timing on my 3.1 was way off, so I go buy a light and I start setting up the motor to TDC and I get it all set and I start the car to set the actual timing and as I'm doing it the motor starts running crapy so I figured I had it to restarted, then it dies, I go to start it back up and nothing, just clicks from the battery, so I grab my ratchet and try to turn the motor by hand, and can't even budge it, I check the oil and its full, what would cause this?
Joined: Mar 2011
Posts: 6,287
Likes: 41
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: Lq4 6.0 SBE s485 turbo E85
Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Seized up 3.1
Okay so the timing on my 3.1 was way off, so I go buy a light and I start setting up the motor to TDC and I get it all set and I start the car to set the actual timing and as I'm doing it the motor starts running crapy so I figured I had it to restarted, then it dies, I go to start it back up and nothing, just clicks from the battery, so I grab my ratchet and try to turn the motor by hand, and can't even budge it, I check the oil and its full, what would cause this?
Check the plugs and look for bad signs there first, since thats simple to do.
Whats the history on the engine?
Thread Starter
Junior Member

Joined: Jan 2011
Posts: 91
Likes: 1
From: Austin, Texas
Car: 91 Camaro R/S
Engine: Tbi 350
Transmission: auto4
Axle/Gears: Stock
Re: Seized up 3.1
Nope, won't even budge, not even by turning it manually, and the plugs are all good, and the motor only has 200,xxx
Joined: Dec 2004
Posts: 16,751
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Seized up 3.1
pull the plugs out and try to rotate the engine. sounds like the timing is to advanced of battery is low bad starter or battery connection. You shouldn't be trying to rotate he engine with the crank bolt.
Joined: Mar 2006
Posts: 4,367
Likes: 15
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Thread Starter
Junior Member

Joined: Jan 2011
Posts: 91
Likes: 1
From: Austin, Texas
Car: 91 Camaro R/S
Engine: Tbi 350
Transmission: auto4
Axle/Gears: Stock
Re: Seized up 3.1
The battery is at full charge, it was running while I was timing it and the motor jerked around and just stopped, and I'll pull the plugs in the morning and see if it changes anything, and why shouldn't I be turning it at the crank by hand?
Joined: Dec 2004
Posts: 16,751
Likes: 995
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
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Joined: Apr 2008
Posts: 10,401
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Seized up 3.1
witht he plugs out its not going to strip the crank bolt , even with the plugs in if u use a good socket thats the correct size it wont strip out
Joined: Mar 2011
Posts: 6,287
Likes: 41
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: Lq4 6.0 SBE s485 turbo E85
Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Seized up 3.1
Ive used that crank bolt xxx many times and never a issue. Its not like we have 10:1 compression...
Joined: Mar 2006
Posts: 4,367
Likes: 15
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: Seized up 3.1
The only thing that could strip the threads of the damper crank bolt, is using the bolt to pull the damper onto the crank during installation, due to a reduced amount of engagement of the thread thread, during installation. When the damper is installed, there is a large amount of thread engagement.
Thread Starter
Junior Member

Joined: Jan 2011
Posts: 91
Likes: 1
From: Austin, Texas
Car: 91 Camaro R/S
Engine: Tbi 350
Transmission: auto4
Axle/Gears: Stock
Re: Seized up 3.1
Not locked up, was messing with it and turned the key, and it somewhat started up. I guess when I was messing with the timing I set it way retarded and it built up a lot of compression. Dodged a bullet on that.
Joined: Mar 2011
Posts: 6,287
Likes: 41
From: Northwest Ohio
Car: 1991 Camaro RS
Engine: Lq4 6.0 SBE s485 turbo E85
Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: Seized up 3.1
If the timing is too retarded or advanced, it does not have anything to do with the compression. The valves are still going to let out the air mixture regardless if its ignited correctly or not.
Member
Joined: May 2012
Posts: 150
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From: fort white FL
Car: 1992 firebird
Engine: 3.1.... soon to be... bigger.
Transmission: 700r4, looking for t5
Axle/Gears: I havent a clue.
Re: Seized up 3.1
Timing chain jam? It could have a streched chain with 200,000+ miles right?
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