Timing Chain and sprockets replacement

[Wags391]

Well, finished replacing the chain and sprockets again today. Started the truck and it is running rough. From looking at it, I'm thinking I might be 180˚ out on the distributor. What is a good way to tell if you're 180˚ out? The timing light, on cylinder #1 of course, lights up with a timing mark, but could it still be 180˚ out?

Also, I'm worried about doing what I did the first time, and that was tightening the harmonic balancer too tight causing the crank sprocket to shift, busting the chain and teeth. I talked to a dealership today and they said the balancer bolt should be 75 ft lbs, so I tightened until I got a click for 75 ft lbs. It all looks correct. Does that sound right to you guys?

[MT-2500]

Originally Posted by Wags391

Well, finished replacing the chain and sprockets again today. Started the truck and it is running rough. From looking at it, I'm thinking I might be 180˚ out on the distributor. What is a good way to tell if you're 180˚ out? The timing light, on cylinder #1 of course, lights up with a timing mark, but could it still be 180˚ out?

Also, I'm worried about doing what I did the first time, and that was tightening the harmonic balancer too tight causing the crank sprocket to shift, busting the chain and teeth. I talked to a dealership today and they said the balancer bolt should be 75 ft lbs, so I tightened until I got a click for 75 ft lbs. It all looks correct. Does that sound right to you guys?

It will not run or start 180 out.

Rotor should point to no 1 plug wire when engine is TDC compression on no 1 cylinder.
There is a base time setting procedure.
Go threw that first.

[Wags391]

Originally Posted by MT-2500

It will not run or start 180 out.

Rotor should point to no 1 plug wire when engine is TDC compression on no 1 cylinder.
There is a base time setting procedure.
Go threw that first.

Unfortunately, I cannot figure this out. I've been working on it for a week and I'm giving up. Calling a tow and going to the dealership.

[Wags391]

Sorry to open a later discussion, but I want to finish following up on some posts.

Got the truck to the dealership. I had bent the number 4 exhaust valve when the first chain replacement broke. Once I got the valve replaced, I had the new (2nd replacement chain) looked at and it was two teeth off. Plus, they told me I had the wrong chain on there. Over all, I spent way too much and learned a little, when I could have just spent the $400 to get the chain replaced int he first place.

[MT-2500]

Originally Posted by Wags391

Sorry to open a later discussion, but I want to finish following up on some posts.

Got the truck to the dealership. I had bent the number 4 exhaust valve when the first chain replacement broke. Once I got the valve replaced, I had the new (2nd replacement chain) looked at and it was two teeth off. Plus, they told me I had the wrong chain on there. Over all, I spent way too much and learned a little, when I could have just spent the $400 to get the chain replaced int he first place.

Thanks for posting back how it went.