Hummer Forums - Enthusiast Forum for Hummer Owners
0 2025/05/26 09:24:57
0 2025/05/26 09:24:56
0 2025/05/26 09:24:54
Great Success! Look at the size of that thing! Unfortunately, I've had trouble obtaining a new one. Looks like I'll have to reuse this one.
Great Success! Look at the size of that thing! Unfortunately, I've had trouble obtaining a new one. Looks like I'll have to reuse this one.
0 2025/04/26 18:36:34
.....yeah that's bad. Actual pitting on the main bearing. LAST picture for Part #2
.....yeah that's bad. Actual pitting on the main bearing. LAST picture for Part #2
0 2025/04/26 18:10:21
Not too terrible....??
Not too terrible....??
0 2025/04/26 18:10:19
Everything removed.
Everything removed.
0 2025/04/26 18:10:18
0 2025/04/26 18:10:17
0 2025/04/26 18:10:16
Dial Bore Gauge on the cylinders; If not for the scoring, these likely would have been reusable.
Dial Bore Gauge on the cylinders; If not for the scoring, these likely would have been reusable.
0 2025/04/26 18:10:14
Dirty pistons;
Dirty pistons;
0 2025/04/26 18:10:13
Scoring on the pistons; on the thrust side.
Scoring on the pistons; on the thrust side.
0 2025/04/26 18:10:12
.....and more.
.....and more.
0 2025/04/26 18:10:11
More Scoring.
More Scoring.
0 2025/04/26 18:10:10
Cylinder Scoring :-( - and yet I thought I would be able to re-use these.
Cylinder Scoring :-( - and yet I thought I would be able to re-use these.
0 2025/04/26 18:10:09
Balance Shaft & Gear - The only reason I had to do this was because I was clumsy and broke the delicate piece of flange, and I needed to break down the shaft in order to install the (new) flange piece onto the shaft. If you're not a moron like me, then you won't have to do any of this. Just be careful, because these parts are extremely delicate. The piece is not in yet, therefore I do not have pictures.
Balance Shaft & Gear - The only reason I had to do this was because I was clumsy and broke the delicate piece of flange, and I needed to break down the shaft in order to install the (new) flange piece onto the shaft. If you're not a moron like me, then you won't have to do any of this. Just be careful, because these parts are extremely delicate. The piece is not in yet, therefore I do not have pictures.
0 2025/04/26 18:10:08
Another notch in the gear; this means the gear can only be installed onto the shaft one way (a good thing)
Another notch in the gear; this means the gear can only be installed onto the shaft one way (a good thing)
0 2025/04/26 18:10:05
Balance Shaft Gear removed
Balance Shaft Gear removed
0 2025/04/26 18:10:04
Another view.
Another view.
0 2025/04/26 18:10:02
Notch in the shaft to keep it in time with the gear.
Notch in the shaft to keep it in time with the gear.
0 2025/04/26 18:10:01
Balance shaft gear/bearing thing removed.
Balance shaft gear/bearing thing removed.
0 2025/04/26 18:10:00
Bearing puller to remove the broken piece.
Bearing puller to remove the broken piece.
0 2025/04/26 18:09:59
0 2025/04/26 18:09:58
My best efforts at removing the broken bolt.
My best efforts at removing the broken bolt.
0 2025/04/26 18:09:57
This picture was taken late, but in this configuration (allen key, and channel locks) you can apply torque to the bolt and remove it. Another option (if you need to remove/replace this cast piece) is to grab the balance shaft itself with channel locks and remove the bolt that way, but I would not recommend it due to the risk of damaging the balance shaft itself. Using the allen key, and gripping this cheaply made piece seemed to be a better option (since I was replacing it anyways).
This picture was taken late, but in this configuration (allen key, and channel locks) you can apply torque to the bolt and remove it. Another option (if you need to remove/replace this cast piece) is to grab the balance shaft itself with channel locks and remove the bolt that way, but I would not recommend it due to the risk of damaging the balance shaft itself. Using the allen key, and gripping this cheaply made piece seemed to be a better option (since I was replacing it anyways).
0 2025/04/26 18:09:56
....then use channel locks to grip this piece (not shown, but you can see the scuff marks from it). Picture was taken AFTER I had already broken the bolt.
....then use channel locks to grip this piece (not shown, but you can see the scuff marks from it). Picture was taken AFTER I had already broken the bolt.
0 2025/04/26 18:09:55
Note to all: this is a RIGHTY-LOOSEY bolt.
Note to all: this is a RIGHTY-LOOSEY bolt.
0 2025/04/26 18:09:54
To remove this.....bearing thingy?, first use an allen key to hold it into place.
To remove this.....bearing thingy?, first use an allen key to hold it into place.
0 2025/04/26 18:09:53
Not here (on this broken piece).
Not here (on this broken piece).
0 2025/04/26 18:03:00
Pry HERE...
Pry HERE...
0 2025/04/26 18:02:59
0 2025/04/26 18:02:58
.....then take a rubber mallet and give the crankshaft a few whacks while you are trying to pull the chain off the crankshaft gear. After a few whacks, I was able to break it loose. All of this can be avoided by waiting to remove the bearing brace/caps until AFTER this balance shaft chain is removed.
.....then take a rubber mallet and give the crankshaft a few whacks while you are trying to pull the chain off the crankshaft gear. After a few whacks, I was able to break it loose. All of this can be avoided by waiting to remove the bearing brace/caps until AFTER this balance shaft chain is removed.
0 2025/04/26 18:02:57
With the bearing brace/caps not installed (a mistake on my end), there is still too much tension on this chain. Take one hand (not shown due to working the camera) and try to pull the chain off the crankshaft.....
With the bearing brace/caps not installed (a mistake on my end), there is still too much tension on this chain. Take one hand (not shown due to working the camera) and try to pull the chain off the crankshaft.....
0 2025/04/26 18:02:56
0 2025/04/26 18:02:55
0 2025/04/26 18:02:54
Removal of the balance shaft chain tensioner.
Removal of the balance shaft chain tensioner.
0 2025/04/26 18:02:52
Gross.
Gross.
0 2025/04/26 18:02:51
Pry the cover off here.
Pry the cover off here.
0 2025/04/26 18:02:50
0 2025/04/26 18:02:49
Rear Cover Removal; oh the trouble begins.....
Rear Cover Removal; oh the trouble begins.....
0 2025/04/26 18:02:48