lawnboy/seal/low compression


Old 06-18-01, 07:23 PM
david ahluwalia
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Registered: Dec 2000
Posts: 7

I have a old law boy push mower.1975 or so.I,m
having a hard time starting it.floods easy.I,m
seeing gas leaking out from under it.I replaced
the seal under the blade.(crankshaft seal?)
Because of low compression last year and it
worked.I however forgot to put the seal retainer
back on.I was working so I decided to not tear it
back down until it stops working.I have since got
it running after drying out the plug.I have a
compression of 55 psi ater about 2-3 pulls .Is
this to low? Is it time to tear down?

[Edited by Tom_Bartco on 06-18-01 at 11:31]
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Old 06-18-01, 08:39 PM
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Join Date: Feb 1998
Location: The Shake and Bake State USA
Posts: 10,440
Hello David

Engine rebuilding time has arrived. Compression is too low.

When you repair or rebuild these engines, lots of attention must be taken to accuracy. One error or improper fit of the cases and a vacuum leak in the crankcase will do terrible damage to the internal engine parts.

Lawn Boy engines also need some specialized seal removeal and installation tools to get the job done correctly. However, if you have correctly installed crankcase seals by using "The Tricks' of the trade, you shouldn't have too many problems.

Good Luck,
Accurate Power Equipment Company.
Small Engine Service and Repair Technician.
Personal Quote:
"If it ain't broke, don't fix it until it is broken!"
Bare in mind my company no longer services nor repairs lawn and garden powered equipment. Rest assured and fully confident, the help I offer you is based upon my prior years in this industry, with this type of equipment and is specific and accurate...

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