- strap to hold flywheel while torqueing it
- 20180209_173534.jpg (1.29 MiB) Viewed 4094 times
129 Engine Repair Help Needed
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- Posts: 295
- Joined: Wed Apr 11, 2012 12:39 pm
- First and Last Name: Ben Michaud
- Location: Richmond, Ontario
Re: 129 Engine Repair Help Needed
This might be useful for someone... I found this method to work well to hold the flywheel while I was torqueing it to spec.
PTWannaHave
- dag1450
- Posts: 2356
- Joined: Fri Apr 01, 2011 3:16 pm
- First and Last Name: Dave Gibson
- Location: Chalfont, Pa
Re: 129 Engine Repair Help Needed
That's exciting!! Great job!! As to the carb....have u used this carburetor before to know that it's ok? Have u gone through the carb to clean it up inside. That's maybe a place to start.
127, 1650, 1572, 1872, 2072 . A mower, blower and blade for each.
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- Posts: 1352
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- First and Last Name: Kenneth LaPatta
- Location: Rockingham VT.
Re: 129 Engine Repair Help Needed
It sure does! A home made wrench from scrap steel will get the job done too.
With this one I have to slip on the socket first before bolting it on.
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- Posts: 295
- Joined: Wed Apr 11, 2012 12:39 pm
- First and Last Name: Ben Michaud
- Location: Richmond, Ontario
Re: 129 Engine Repair Help Needed
Good point Dave; I should have mentioned that I completely went through the carb, without disassembling the throttle & choke shafts. (I don't think I could've gotten it any cleaner even if I had...) I purchased the tractor in very rough running condition, so the carb was 'working' before I parked and disassembled the machine. I thoroughly disassembled every other carb part and cleaned, and put new fuel bowl gaskets (2) and new fuel bowl needle (since I had one).dag1450 wrote:That's exciting!! Great job!! As to the carb....have u used this carburetor before to know that it's ok? Have u gone through the carb to clean it up inside. That's maybe a place to start.
I'm guessing the only way to identify this carb as the culprit would be to put another known-to-be-perfect carb... (In my case, that would mean buying a new one.)
PTWannaHave
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- Joined: Wed Apr 11, 2012 12:39 pm
- First and Last Name: Ben Michaud
- Location: Richmond, Ontario
Re: 129 Engine Repair Help Needed
OK; I refilled with fresh oil (SAE30 non-detergent), and played around with it some more... A friend of mine mentioned I should put the air filter on, as some carbs cannot be fine-tuned otherwise. I have a fancy Spectre cone filter for this machine; didn't make a difference.
As you can see in the pic, both clean plugs ended up with a consistent look after about 10-15mins each of varying engine speeds. Seems like a combination of carbon build-up and wetness. Not sure if the latter is fuel, or fuel & oil...
Engine compression is 90psi; what should it be?
If one did not see all the exhaust smoke and only heard the engine, they are likely to think it is a fine-running engine... But alas, the smoke and plugs indicate otherwise. Also, I think I 'lost' 1/4 of a quart of oil...! I'll have to keep a closer eye on that, but it would explain all the smoke...
As previously mentioned, I have new piston rings, which would be a bummer if excessive oil is getting by and being burned... If that is the case, does the 90psi measurement make sense?
No job is simple...!
As you can see in the pic, both clean plugs ended up with a consistent look after about 10-15mins each of varying engine speeds. Seems like a combination of carbon build-up and wetness. Not sure if the latter is fuel, or fuel & oil...
Engine compression is 90psi; what should it be?
If one did not see all the exhaust smoke and only heard the engine, they are likely to think it is a fine-running engine... But alas, the smoke and plugs indicate otherwise. Also, I think I 'lost' 1/4 of a quart of oil...! I'll have to keep a closer eye on that, but it would explain all the smoke...
As previously mentioned, I have new piston rings, which would be a bummer if excessive oil is getting by and being burned... If that is the case, does the 90psi measurement make sense?
No job is simple...!
PTWannaHave
- BigMike
- Posts: 1351
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- First and Last Name: Mike Andrews
- Location: Niles,Michigan
Re: 129 Engine Repair Help Needed
Ben, new rings need time to seat. The tractor needs to be put under good load and runs hard. The puts plenty of pressure on the rings to let them seat.
A plow day or a wooden pallet loaded and drug around will do just fine.
A plow day or a wooden pallet loaded and drug around will do just fine.
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- Posts: 295
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- First and Last Name: Ben Michaud
- Location: Richmond, Ontario
Re: 129 Engine Repair Help Needed
Thanks Big Mike; I will endeavour to do that before doing anything else to try to rectify a problem that might not be a problem...
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- Posts: 295
- Joined: Wed Apr 11, 2012 12:39 pm
- First and Last Name: Ben Michaud
- Location: Richmond, Ontario
Re: 129 Engine Repair Help Needed
'Running under load' to help/try to seat the piston rings...
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