[SEL] John Deere Fuel Tank/Oil Pan

Rob Skinner rskinner at rustyiron.com
Tue Oct 26 19:57:09 PDT 2004


> > will melt like taffy and then recongeal all over the inside 
> of the fuel system and make it look like a rubber coated 
> water park ride .

Here's a little anecdote for ya that only applies to John Deeres and silicone.  

A chap brought a Deere over saying that it would run for fifteen minutes and
then die.  After the engine sat a while, it would fire back up, but only for
fifteen minutes.  

Rather than try to reproduce the symtoms, I took the report as accurate.
Turning the engine over slowly by hand produced a faint, but unmistakably
unusual, sound.  The next step was to remove the cover and find the source of
the unusual noise.  

Surprise, surprise, surprise!  The crankcase had a buildup of powdered aluminum
from the scuffed up aftermarket piston.  The piston was as dry as the proverbial
bone!

Further investigation revealed that a little bugger of silicone had come loose
and lodged in the itty-bitty hole that allows oil into the oil cup.  You Deere
guys know what I mean.  If the hole gets plugged, no oil goes into the cup, no
oil gets flung around the crankcase, the bits become DRY, and then nasty things
happen.

Luckily, the damage was not so bad that it couldn't be fixed with a thorough
cleaning and a few squirts of oil.  It's not like the engine had to turn four
second quarter miles.

Rob


=-=-=-=-=-=
Rob Skinner
La Habra, California
www.rustyiron.com   




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