Engine is hard to turn by hand
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Junior Member
Joined: Apr 2015
Posts: 13
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From: Gainesville, GA
Car: 1989 Camaro
Engine: 2.8
Transmission: 5 Speed Manual
Engine is hard to turn by hand
Alright so I am having to time my engine from scratch since my 89'Camaro RS came with no distributor. Anyways, we tried and the engine fired for a split second. After wards I left it alone and changed the oil and filter next day. I tried to time it again and turned the engine over by hand. I had to really work it to turn it. Did I bend a valve??
Joined: Dec 2004
Posts: 16,751
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Engine is hard to turn by hand
How sting are your hands with the plugs installed and the converter moving lmfao
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: Engine is hard to turn by hand
If your plugs are in, it's gonna be a little tough. Take out #1 plug, bring up to TDC and continue to time it. Be sure to unplug the EST connector.
You'll know soon enough when you go to start it.
You'll know soon enough when you go to start it.
Re: Engine is hard to turn by hand
Alright so I am having to time my engine from scratch since my 89'Camaro RS came with no distributor. Anyways, we tried and the engine fired for a split second. After wards I left it alone and changed the oil and filter next day. I tried to time it again and turned the engine over by hand. I had to really work it to turn it. Did I bend a valve??
You will unplug nothing from the distributor to establish base timing . There is a single wire brown in color with a connector that gets unplugged to put the ECM into base timing mode . You will find this not near the distributor (cause that'd just be TOO flippin easy, Thanks GM) but instead lurking around in the area of the heater/AC box under the hood in around the jumble of wires that live there . When you find and unplug that it will let you set base timing , and throw a code at the same time . You unplug it , start it , set the timing , shut it off , plug it back in , disconnect the battery or pull the ECM fuse for a few minutes to clear the code , then re apply power and it's good to go .
Last edited by OrangeBird; Jun 3, 2015 at 12:10 PM.
Thread Starter
Junior Member
Joined: Apr 2015
Posts: 13
Likes: 0
From: Gainesville, GA
Car: 1989 Camaro
Engine: 2.8
Transmission: 5 Speed Manual
Re: Engine is hard to turn by hand
Thanks guys !! I am going to do a compression test to make sure all is good. Where should I be on psi per cylinder ?
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Joined: Dec 2004
Posts: 16,751
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Engine is hard to turn by hand
Your question depends on engine internal component variables.
There shouldn't be more than 10-15 psi per cylinders.
140-160psi or so.
There shouldn't be more than 10-15 psi per cylinders.
140-160psi or so.
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