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K181

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857

Hi

Can any one help me with an exploded parts diagram of a K181 engine please.

Thank you.

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gwest_ca

Will a parts list work? Click on the pictures

Service manual

Operator manual

Garry

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857

Thank you very much Garry.

 

Most of the information I needed I found, But I couldn't find how far the exhaust valve should lift on the second compression stroke, the reason I ask is before I found the correct valve stem cap which should be .006 I had reground the valve that every one I spoke to said the gap should be .015 which I did, but is WRONG so I am getting less lift by .010 how important is the gap on the lift?

I hope some one can help.

Thank you.

Terry

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rmaynard

According to all the info that I have, the exhaust gap is .015. I have rebuilt K-181's, and K-161's and that is the gap that I use, per the Kohler manual. You must be looking at the intake spec.

 

image.png.db6fe350c6e50f818279f69212e9f89b.png

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857

Thank you maynard for your reply.

I think I was looking at the valve to guide clearance.

Rgds

Terry

 

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857

Hi all

I am still having trouble to get my K181S to run, it started with suddenly pumping out white smoke,I mean a lot. I then took the head off reground the valves and adjusted the valve gap 17thou exhaust and 6 thou inlet, assembled it still not running spitting out petrol from the exhaust, I removed the head again to find petrol on top of the piston, what I dont understand is on the third stroke after compression  the exhaust valve is lifting a few thou then closes before total TDC.

 

What can make the exhaust lift a few thou when it shouldnt? I have downloaded the full service manual and cant find anything about this.

Advice would be appreciated

Rgds Terry

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gwest_ca

Sounds like you are describing the ACR (Automatic compression release)

Section 9 in this later service manual

Garry

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857

Thank you Garry once again what would us novices do without you.

 

The manual solves one problem I can forget.

 

I still cannot get it to fire I have done so far.

It turns over very smooth no knocks etc.

Plenty of spark and fuel.

Ground the valves and set the gap.

Set the points gap.

New plug.

Set spark plug gap.

New head gasket and others.

Set the governor to the cross shaft spec as manual .

I have 60Lb compression which goes up to 75Lb when engine is turned off.

 

Have I missed something obvious?

Help.

Rgds

Terry

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953 nut
9 hours ago, 857 said:

it still not running spitting out petrol from the exhaust,

Have you solved the fuel problem? Sounds like it is flooding, perhaps the needle and seat need to be replaced or the float is set too high.

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857

Yes cured petrol problem but it actually was oil petrol mix, I have now removed the piston and put each ring back in turn and leveled each with the piston, the ring gapes are 1st compression ring 15thou, 2nd compression is 40thou and the oil scraper is 80thou or slightly more as as my feeler gauges only add up to 80 in total.

 

I hope this is my problem, I think I will try a new set of std rings as there appears to be no other problem with cylinder and piston do you experts think the same?

Thanks

Terry

 

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stevasaurus

See if this thread triggers anything.  :)

 

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857

The fuel problem I found out when I put the remainder from a 20  Ltr jerry can into my car it would not start, the fuel was old and contaminated.

 

I have tried the UK without success for rings, who would you say in the US?

Terry  

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