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More 2Stage Woes On A Ht20


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#1 WrenchinOnIt OFFLINE  

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Posted December 06, 2014 - 06:57 PM

Going to start a new topic on this tractor, I had it outside around the yard most of the afternoon working , ran 3/4 of a tank of fuel through it , engine runs really strong, hydro was pretty stout as well ,was surprised when I comp. tested it and it only blew about 70 ea cylinder. No oil blow by or smoke , I'm guessing valve job. Could see & feel the right spindle moving excessively and had a pretty good guess what it was. You can see the outline of the spring brackets for the 2stage on the frame, matter of fact I took em off earlier .Not sure I'm going to save this one, looks like it had a hard life............... But

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#2 Gtractor OFFLINE  

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Posted December 06, 2014 - 07:44 PM

If that engine has a compression release, 70 is a good reading.   That would likely give you 90 or better once the engine reaches 600 RPM and ACR cuts out.

90lbs on a flathead engine is pretty good.

 

Just a guess.


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#3 WrenchinOnIt OFFLINE  

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Posted December 06, 2014 - 08:01 PM

If that engine has a compression release, 70 is a good reading.   That would likely give you 90 or better once the engine reaches 600 RPM and ACR cuts out.
90lbs on a flathead engine is pretty good.
 
Just a guess.


Thank you for the input, good thought, but to my knowledge , and messing around with these engines no compression release, Kohler states 130 psi ( if I recall) has new , anything under 90 engine should be taken to an authorized Kohler dealer for repair. Have several that pop 120+ on comp test. Plugs on this engine , though worn, have a nice burn to them, pretty sure valve job in order. May pull the heads for a look see


Edited by WrenchinOnIt, December 06, 2014 - 08:49 PM.

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#4 Husky ONLINE  

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Posted December 07, 2014 - 09:53 AM

Kohler service manual recommends that less than 90 psi indicates issues, anything from warped heads to blown head gaskets, valves and even combustion deposits. It may be worth removing one head to see if carbon is built up. My 1886 tested around 100-110psi 5 years ago.


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#5 WrenchinOnIt OFFLINE  

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Posted December 07, 2014 - 06:06 PM

Getting closer to the decision of will it stay or will it part. I've got this far might as well pull the heads and take a look.

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#6 WrenchinOnIt OFFLINE  

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Posted December 10, 2014 - 07:51 PM

Guess not, already been punched to 10 over, wow was this a crudded up mess , taps 👎

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#7 Cat385B ONLINE  

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Posted December 10, 2014 - 07:59 PM

Parts donor?


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#8 WrenchinOnIt OFFLINE  

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Posted December 13, 2014 - 01:20 PM

Parts donor?


Yup

#9 WrenchinOnIt OFFLINE  

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Posted December 13, 2014 - 01:33 PM

NOT AGAIN ! Strike Two

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#10 blackjackjakexxix OFFLINE  

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Posted December 14, 2014 - 10:10 AM

Well went on a parts run yesterday, saw my first HT-23 with a broken bolster,2 stage tractor,up until this point all I ever saw with them broken were the HT-20's,was starting to think maybe there was a pattern there,but this changes that thinking,broke in the same place as this one
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#11 WrenchinOnIt OFFLINE  

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Posted December 14, 2014 - 11:09 AM

Turns out after removing it, it is also broken on the corner same as last one I posted pics about, so identical breaks on both 20's. Going to pull the battery/gas tank support bracket off my one 23 and take a good look at the bolster's corners, it's only a 450+ hr tractor but it wore a 2stage every winter since new. I'm beginning to suspect they break at one corner first , which would go undetected, then with the continued stress on bolster they spilt up through the axle pin mounting holes
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#12 wilberj ONLINE  

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Posted December 14, 2014 - 11:38 AM

The HT23 has a heaver bolster then the rest of the large frames.


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#13 WrenchinOnIt OFFLINE  

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Posted December 14, 2014 - 11:43 AM

The HT23 has a heaver bolster then the rest of the large frames.


Good info , didn't know that , have not needed to tear that deep into a 23. Thank you
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#14 blackjackjakexxix OFFLINE  

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Posted December 21, 2014 - 05:30 PM

Came across something interesting the other day,I have been tearing down a HT-23,I pulled the bolster out of it, I had one from a HT-20,so decided to compare them,now this HT-23 was the last year they made them,I measured both of them and they are identical in every way,now maybe there is a chance the earlier 23's had the heavier bolster,sure wouldn't have thought they would have went backwards with them but you never know,like others have talked Bolens info from the factory wasn't always correct,so there is a chance in the yearly seminar manuals they posted, there was going to be a change to making them heavier and it never happened
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#15 chieffan ONLINE  

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Posted December 21, 2014 - 11:29 PM

Guess not, already been punched to 10 over, wow was this a crudded up mess , taps

My long time outdoor power service manager said he runs water through an engine to remove the carbon.  Something about burning water will soften the carbon and out it goes.  He told me this when I had problems with my first snow blower's air filter freezing up and choking the engine. Said to remove the filters during winter.  I asked about all that water going through the motor.   Sure might be worth a try to save an engine.


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