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blowing oil from head gastket


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#1 lyall ONLINE  

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Posted April 09, 2015 - 10:26 AM

I have a JD214 with a K321 in it.

Brought it used.  Had to work on the electrical to got it to run.

got running and it was blowing oil.  As I was taking of the head and the head bolts do not seem to be torque like it should.  Little loose.  The head gasket looks good, but has oil on it.

 

If the head was not torque right, would it blow oil out the exhaust and from the head gasket?

 

I was thinking if the head was not torqued right, that oil could be sucked up passed the rings, causing the blow oil.  I looked at the cylinder wall and it looks good, with just a very little ridge. 

 

I am right in thinking that?  Or am I just thinking to much?  Should go ahead and put new rings in it or just put the head back on and run it?

 

thanks

 

 



#2 Trav1s ONLINE  

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Posted April 09, 2015 - 11:05 AM

When the head gasket went on the k181 in the '66 110 I had it blew oil out between the head and the gasket.  Lapped the head, installed new gasket, and torqued to specs.  It used a bit of oil but nothing major for an old Kohler of unknown age.  

Are those the right head bolts for the engine?  


Edited by Trav1s, April 09, 2015 - 11:07 AM.

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#3 DougT ONLINE  

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Posted April 09, 2015 - 11:06 AM

I would say the rings are junk. the headgasket isn't going to cause it.


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#4 M.Cain OFFLINE  

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Posted April 09, 2015 - 04:33 PM

I am with Doug on this one also.

#5 chieffan ONLINE  

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Posted April 09, 2015 - 05:12 PM

Liike DougT and M.Cain said, if you have oil coming our around the head gasket you have other more serious problems.  Probably rings & valve guide seals.  Just as well do an overhaul and have it done right.  You will end up doing it sooner or later anyway.


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#6 lyall ONLINE  

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Posted April 09, 2015 - 08:57 PM

Thanks all 

 

the motor is a spare for now,  so when I around to checking it over, then I will see what I need to rebuild it.

I got 2 other 212 that I need to check over, before I buy any parts,


Edited by lyall, April 09, 2015 - 08:57 PM.

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#7 superaben OFFLINE  

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Posted April 09, 2015 - 09:59 PM

I'm thirding Doug on this one.  You need a nice cute set of piston rings. 

 

You might also check and make sure a mud dauber didn't clog up the breather.  I found one like that just before I pulled the engine to redo the rings. 

 

Ben W.


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#8 lyall ONLINE  

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Posted April 09, 2015 - 10:36 PM

I also check the valve clearance and the carb when I work on a motor the first time.  Saves a lot of time down the road.



#9 lyall ONLINE  

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Posted April 10, 2015 - 08:27 PM

I took the K321 apart today and checked it over.

checked the cylinder wall - looks good.

checked cylinder with the top ring.

1" down ring gap was .035

2" down ring gap was .035

3.25" down ring gap at .035

next I turned the ring 120 degrees and checked it - still at .035 at 1", 2" & 3.25"

next I turned the ring 120 degrees and it still checked .035 at 1", 2" & 3.25"

I would that the cylinder wall is good to rering.

 

Next the check the head.

not good - wapred

so I sanded it down using sand paper on a granite slab

A lot of sanding and it is now flat.

Tried putting a .003 feeler gauge between the head and the granite, would not go under the head.

Checked it all the the way around the head.  I think it is flat and ready to use again.

 

Next the valves.

I lapping the valves and that look good, no pits in the seats or the valves.

 

Now to get a set of rings.  Already have a spare head gasket and pan gasket.

 

I think it will be a good replacement motor.






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