Ryan727
Active Member
Hey guys, been away for the last month, but finally received the reman crank I've been trying to get for a while. So I'm about to dive into this project of a full engine rebuild, and would like a few pointers from people that are familiar with this process.
I blew a hole in the crankcase two months ago, due to the PTO rod bearing giving out and dispersing bearing balls all throughout the combustion process.. So I yanked it out, and I've got a spare crankcase to go in. Not going to try and do a patch job on the broken one.
I'm primarily following this rebuild process I came across on youtube:
It's a 5 part video where the guy rebuilds his 951, and I have found it helpful, as I've never done this before.
So a few questions before I jump into it:
1. I've been soaking my crankcase in diesel to remove the old crud on it. I'll hit it with a wire brush, let it sit in the diesel for a day, go back and brush more, then so on. I want the thing spotless - should I just go and have it sand blasted or bead blasted?
2. In part 2 of the above video series, this guy hits his crankcase halves with red RTV before reassembly. Should I do so as well for an added seal, or just leave it be?
3. I haven't gotten my gasket kit yet. I'm down the street from SBT and was just going to get that full 951 kit for convenience. Are those gaskets fine? I know the carbs have to be genuine kits, but not sure about the engine gaskets.
4. Anything to check for on my counterbalance, or are they usually good for a long time? No visible rust on it, everything looks and feels good. I've got 3 of them, so I'm going to use the best of the bunch.
5. I've got a brand new SBT head with 10 hours on it, and that thing is clean as can be - so no issues there.
6. Rebuilt the carbs and put an hour on them before the crank blew - that should be good as well.
7. Is there anything I need to know in preparation for this project, or do those videos do a decent job of showing how it's done. Anything you guys recommend I pay more attention to? I know the crank and balance have to be aligned, I've got the markings clear.
8. I've done a lot of research on the break-in process. Only thing I'm unsure of is if I should use break-in oil, or just use what I plan on running. Thoughts? I'm currently running 40:1 premix on the engine. Will go 32:1 for two tanks break-in.
I'll be posting to this thread as I start getting into it. Going to give the entire engine a burnt copper paint job, with a jet black exhaust pipe.
I blew a hole in the crankcase two months ago, due to the PTO rod bearing giving out and dispersing bearing balls all throughout the combustion process.. So I yanked it out, and I've got a spare crankcase to go in. Not going to try and do a patch job on the broken one.
I'm primarily following this rebuild process I came across on youtube:
So a few questions before I jump into it:
1. I've been soaking my crankcase in diesel to remove the old crud on it. I'll hit it with a wire brush, let it sit in the diesel for a day, go back and brush more, then so on. I want the thing spotless - should I just go and have it sand blasted or bead blasted?
2. In part 2 of the above video series, this guy hits his crankcase halves with red RTV before reassembly. Should I do so as well for an added seal, or just leave it be?
3. I haven't gotten my gasket kit yet. I'm down the street from SBT and was just going to get that full 951 kit for convenience. Are those gaskets fine? I know the carbs have to be genuine kits, but not sure about the engine gaskets.
4. Anything to check for on my counterbalance, or are they usually good for a long time? No visible rust on it, everything looks and feels good. I've got 3 of them, so I'm going to use the best of the bunch.
5. I've got a brand new SBT head with 10 hours on it, and that thing is clean as can be - so no issues there.
6. Rebuilt the carbs and put an hour on them before the crank blew - that should be good as well.
7. Is there anything I need to know in preparation for this project, or do those videos do a decent job of showing how it's done. Anything you guys recommend I pay more attention to? I know the crank and balance have to be aligned, I've got the markings clear.
8. I've done a lot of research on the break-in process. Only thing I'm unsure of is if I should use break-in oil, or just use what I plan on running. Thoughts? I'm currently running 40:1 premix on the engine. Will go 32:1 for two tanks break-in.
I'll be posting to this thread as I start getting into it. Going to give the entire engine a burnt copper paint job, with a jet black exhaust pipe.
