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MTD-DYNAMARK-NOMA OVHXL 12 hp. valve lash setting .004" ? - risk if burning valves ?

#1

P

pfrancz

MTD-DYNAMARK-NOMA OVHXL 12 hp. valve lash setting .004" ? - risk if burning valves ?

Dear List:
We were wondering as we read the recommended settings and factory manual valve lash recommendations.
1985 mower:
MTD-DYNAMARK-NOMA OVHXL 12 hp. valve lash setting of .004" ? - a risk if burning valves ?

We set them to .006-.008" due to reading some tech recommendations by prof mechanics in the industry, as a safe guard. I wanted to eliminate any hard starting and keep the valve train in tact, especailly when the engine was hot.

Thanks,


#2

M

mechanic mark

Re: MTD-DYNAMARK-NOMA OVHXL 12 hp. valve lash setting .004" ? - risk if burning valv

pfrancz said:
Dear List:
We were wondering as we read the recommended settings and factory manual valve lash recommendations.
1985 mower:
MTD-DYNAMARK-NOMA OVHXL 12 hp. valve lash setting of .004" ? - a risk if burning valves ?

We set them to .006-.008" due to reading some tech recommendations by prof mechanics in the industry, as a safe guard. I wanted to eliminate any hard starting and keep the valve train in tact, especailly when the engine was hot.

Thanks,
Click to expand...

http://www.smallenginesuppliers.com/html/engine-specs/tecumseh/Tecumseh_quick_reference.pdf If your manual says .004 cold engine,then I would adjust valves to .004. When you waver from engine manufacturers specs., you will soon have engine problems internally. When posting it would be a big help if you include model number, engine manufacturer, as well as all numbers from engine and any other numbers you can find, Thanks.


#3

Fish

Fish

Re: MTD-DYNAMARK-NOMA OVHXL 12 hp. valve lash setting .004" ? - risk if burning valv

Yeah, well you obviously are talking about a Tecumseh engine, so you should set the gaps to their specs.... If you increase the gap, you will make for harder cranking conditions...


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