How To Repair Exhaust Leak Around The Vgt Shaft
geralsc3
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tadawson
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- #2
There is typically a replaceable seal where the shaft exits the block. Replace it . . .
Rivets
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The HH60 did not have a seal. Are y'all telling us that oil is coming out of the hole which is drilled vertically into the crankshaft PTO side housing. The governor shaft would come through this pigsty and the oil would exist flowing uphill. If that is the case, I suspect that the breather may be plugged, causing an increase in crankcase pressure and forcing oil out of whatsoever opening available. If you post back, please include the engine spec number so we can see the exact engine you have. In the mean fourth dimension, here is a manual which may help y'all. https://www.mymowerparts.com/pdf/Te...P-four-CYCLE-50-HEAD-FLAT-HEAD-ENGINES-692509.pdf
coderasm
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I accept this same problem. I have this engine Tecumseh OHH60-71217F aka OHH4565 sitting on top of this tiller MTD 21A-333A729. The governor is horizontal. I bought it used and have been tuning it upwards. In that location was a ton of caked on oil on the governor's side of the engine. Subsequently thoroughly degreasing, the source of the oil appears to be from the governor shaft exiting the crankcase. There is a possibility there is besides much oil in the crankcase. I take yet to drain it. If oil is coming from the shaft is there annihilation I can practice about it? From the exploded diagrams of the engine there does not appear to be a seal of any kind.
StarTech
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If the governor hole is worn drilling and fitting a bushing is an pick but check for plugged breather or excessive accident-by first.
coderasm
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My breather has a port coming off the valve cover with a tube exposed to the air and dangling along side the engine. Is that how the breather tube is supposed to be routed on these engines? The tube did take a severe kink in it and I have replaced it. I'll exist checking pinch next.
Rivets
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On the older Tecumseh engines the breather tube is not connected to anything.
coderasm
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Good news. The tiller is tuned upwardly and running great at present. This tiller had been sitting for years. I pulled the carb knowing it would need to be cleaned. Luckily it is the factory carb. I desire to clean it with an ultrasonic cleaner. Until I can go an ultrasonic cleaner, I bought an aftermarket carb on amazon for $20 bucks. I installed information technology and information technology works perfectly. The only affair I need at present is a new governor spring. The original governor spring is completely trashed and I have information technology shortened in such a way to get me along until the new one arrives. I have information technology on order. The merely matter I actually need to do at present it sharpen the blades. Thank you for everyone's communication.
Romore
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A lilliputian oil weeping effectually the governor shaft is normal, a lot suggests a plugged breather or excessive blowby due to worn rings, valves etc. Sharpening the tines will be a challenge, they will be loftier quality spring steel.
coderasm
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I sharpened the blades with an eighty grit flap disc on my angle grinder. It looks like I got the angles pretty well.
Source: https://www.lawnmowerforum.com/threads/tecumseh-hh60-leaking-oil-around-governor-shaft.54675/
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