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#1 J.T.M. OFFLINE  

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Posted December 05, 2015 - 06:57 PM

why would an engine blow oil out of the spark plug hole ?



#2 KennyP ONLINE  

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Posted December 05, 2015 - 07:00 PM

Rings are stuck or worn out!


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#3 Bolens 1000 ONLINE  

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Posted December 05, 2015 - 07:07 PM

Rings are stuck or worn out!

 

:ditto: something stuck or you got a tired engine!

 

What brand is it?



#4 J.T.M. OFFLINE  

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Posted December 05, 2015 - 07:20 PM

THanks guys .Its a bolens ht 20 . Shes gonna nickle and dime me to death Im afraid :(



#5 Bolens 1000 ONLINE  

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Posted December 05, 2015 - 07:29 PM

Is the machine smoking?



#6 J.T.M. OFFLINE  

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Posted December 05, 2015 - 07:31 PM

Is the machine smoking?

Yup .........big time   :(

compression is 95 and 120 . 


Edited by J.T.M., December 05, 2015 - 07:32 PM.


#7 tater195 ONLINE  

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Posted December 05, 2015 - 07:31 PM

Check oil level. if it is too high due to gas in oil from leaking float needle/ fuel pump, it will do that too



#8 J.T.M. OFFLINE  

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Posted December 05, 2015 - 07:35 PM

there is gas in the oil .... the smoke is blue 


Edited by J.T.M., December 05, 2015 - 07:35 PM.


#9 Bolens 1000 ONLINE  

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Posted December 05, 2015 - 07:35 PM

Have you pulled the heads to see if everything is ok on the top end?, Valves, head gaskets not blown ect.....



#10 637Yeoman OFFLINE  

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Posted December 05, 2015 - 07:39 PM

Your rings are probably stuck. If its blowing out of the spark plug hole the plug is probably loose. Did it just start smoking? Also if there is gas in your oil Are you shutting off the gas?



#11 Tecumseh power ONLINE  

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Posted December 05, 2015 - 10:33 PM

How much is comming out your plug can't be tight . I agree with what the other guys said but if the plug is loose you will get a small black ring of oil and carbon around the outside on the head all engines do that with a loose plug. Is the plug oil fouled? Is it using oil? Is the oil over full? What color is the exhaust . You can still have good compression and have a bad or stuck oil ring.

#12 Gtractor ONLINE  

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Posted December 05, 2015 - 10:34 PM

Blue smoke is oil burning.  Your engine is worn out. 

Black smoke is too much gas running rich such as a carb problem.

DO NOT run it if it has gas in the oil.

Sounds like a full overhaul is in order. 

Maybe it just needs to go to Missouri to live?  :wave:

 

If oil is coming out around the plug its not sealed.  Maybe the washer fell off the plug while it was removed and now it won't seal even though its tight?


Edited by Gtractor, December 05, 2015 - 10:36 PM.


#13 WrenchinOnIt ONLINE  

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Posted December 06, 2015 - 08:30 AM

Hello,these Kohler K series (482, 532 which should be in your 20,& 582) are notorious for float sticking in carb pulling a siphon thru the mechanical fuel pump and filling your crankcase with gas, as stated do not run it in this condition,it should be difficult to start as it is "hydraulically" locking up,but when it fire's it will smoke! pull the carb and clean it, I'd replace the fuel pump and also install an inline fuel shut off. 120psi for this engine is excellent!! Can't see an engine with that kind of compression being wore out. Now having said that ,I've haven't seen that kind discrepancy between the psi numbers per cylinder, maybe 10psi at most, (my experience and I've tore a few off these down and rebuilt them) So has Dr Bolens has suggested pull the heads, that low cylinder maybe a valve issue or easier yet the head gasket. Make sure your plug hasn't cross threaded and damaged the threads, easy enough to do in the aluminum head.
The early 532's had a oil pump issue it was addressed in later models and Kohler issued a service bulletin to dealers explaining such, so if it's the left cylinder (sitting on unit) it's possible it didn't get proper lubrication and wore the rings prematurely compared to the good cylinder. Usually you find a 532 with this side connecting rod broken due to inadequate lubrication , not sure about premature wear, if asked to guess I'd venture valves.
Sadly connecting rods and a few other parts for these have been discontinued and prices to overhaul these engines are becoming astronomical!
Fix the carb, kits are relatively inexpensive ( check with site sponsors) fuel pumps are costly, your condition doesn't mean it's bad , but IMO it's on its way.
Drain and replace oil and filter, once you addressed the carb , and the plug issue, fire it up see what it does 95 psi is on the lower end for this engine, but acceptable.
Let us know.

Edited by WrenchinOnIt, December 06, 2015 - 09:15 AM.

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