960 Bad Timing Belt
#1
960 Bad Timing Belt
I have a chance to purchase a 1992 Volvo 960 very cheap with a bad timing belt. I have changed timing belts before so it did not concern me much, but I did not know the motor was an interference motor when I spoke to the seller. I have not purchased the car yet and want to have an idea what I am getting into before I go through with the purchase.
What questions do I ask the seller? If the timing belt broke while it was being driven, what is the best case senario? What is the worse case senario I am looking at?
Thanks in advance for your help.
What questions do I ask the seller? If the timing belt broke while it was being driven, what is the best case senario? What is the worse case senario I am looking at?
Thanks in advance for your help.
#2
RE: 960 Bad Timing Belt
If the car with a "Broken" timing belt is a 6 cyl DOHC ( double Over Head Cam), even if the engine was just idling when it broke, a piston hit valves and damage was done. I know someone who's belt broke when trying to start the car and valves got bent.
On the other hand, if the car has a 4 cyl then your OK. I don't know if 960s where ever issued with 4 cylinder engines. I do know that 760 where available with the 4 cyl...
Hope this helps... TTFN, Dwain
On the other hand, if the car has a 4 cyl then your OK. I don't know if 960s where ever issued with 4 cylinder engines. I do know that 760 where available with the 4 cyl...
Hope this helps... TTFN, Dwain
#4
RE: 960 Bad Timing Belt
This has the 6 cylinder. I am getting the car for $400 as it sits. IfI knew it was just the valves, that does not scare me too much. I will still have a decent car relatively cheap. You guys that have had the heads redone, about how much am I looking at. I was figuring about $600 by the time I was done for parts and labor.
Is there anyway to assess the damage without pulling the motor apart? So, when I go to pick up the car, what can I look for that would be a dead clue that the pistons are damaged?
Edit: I should aso add that the rest of the car is in very good shape. No rust, no dents, good paint, good interior, no rips in the interior, etc... And I am told that everything works except the timing belt.
Is there anyway to assess the damage without pulling the motor apart? So, when I go to pick up the car, what can I look for that would be a dead clue that the pistons are damaged?
Edit: I should aso add that the rest of the car is in very good shape. No rust, no dents, good paint, good interior, no rips in the interior, etc... And I am told that everything works except the timing belt.
#5
#6
RE: 960 Bad Timing Belt
Thanks for the help. Until I pull the head to verify, I will assume some of the valves are bent. Would I be Ok to pick up a used head from a salvage yard? What models or motors can I look for to pull a head from? WillI need a '92 or '93 Volvo 960 or was this motor/head used in other years/models?
Also, will a compression test on the cylinders confirm whether or not there is a bent valve? Not trying to be a pain, just looking forward to my new project.
Also, will a compression test on the cylinders confirm whether or not there is a bent valve? Not trying to be a pain, just looking forward to my new project.
#7
RE: 960 Bad Timing Belt
Yes a compression test will tell you if they are bent. Thats after you go through the trouble of setting it all up and putting a belt on.
I think you will need a 92 only head a 93 might work depending on the motor in the car. I know the real early 92's were the 92's only.
I also think there is like 3 different 92 motors.
I think you will need a 92 only head a 93 might work depending on the motor in the car. I know the real early 92's were the 92's only.
I also think there is like 3 different 92 motors.
#8
RE: 960 Bad Timing Belt
Great, thanks. I am making a game plan here. Good info on the motor. I will just wait and get the numbers off the block before calling around. Are there any large online distributors of used Volvo parts?I have used car-parts.com for my Jeep before, but searches for Volvo parts on there just timed out.
#10
RE: 960 Bad Timing Belt
If you buy it, you'll have a big $400 paperweight....
Seriously, this is a big job, so just be prepared for it. I GUARANTEE you have bent valves, at least. That's why they emphasize to change the timing belt when it's supposed to be changed....it's a disaster otherwise.
Seriously, this is a big job, so just be prepared for it. I GUARANTEE you have bent valves, at least. That's why they emphasize to change the timing belt when it's supposed to be changed....it's a disaster otherwise.
#11
I almost have my 960 back together, but I need a little advice. I am swapping the cam gears over to the rebuilt head from the old head. I did not realize they were not keyed until I took them off the old head. How do I know what position to install the cam gears on rebuilt head? I see no way of knowing what position they bolt up. I guess I have a 30% chance of getting it right?
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OK, I need a little more help. Or atleast some assurance I am doing it right. I have the cams figured out. With the proper tools it was not that hard. But I have a question about the crankshaft. When I align the timing marks on the crank, the #1 piston is not at TDC (atleast not what I would consider top dead center). It's close, but not exactly at top. Is this normal? I want to make sure this is right before I button this motor back up again.
So, if I make sure the #1 piston is on the up stroke, and align the timing marks on the crank, is it normal for the #1 piston to not be quite at the top?
Thanks guys, I appreciate the help.
So, if I make sure the #1 piston is on the up stroke, and align the timing marks on the crank, is it normal for the #1 piston to not be quite at the top?
Thanks guys, I appreciate the help.