Author Topic: ID and Restore an original MTD 990  (Read 19801 times)

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Offline The Radio Shop

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Re: ID and Restore an original MTD 990
« Reply #30 on: June 19, 2015, 09:06:17 PM »
Painted one fender today with the new paint that is water based. Not bad
Buddy kc4umo

Offline The Radio Shop

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Re: ID and Restore an original MTD 990
« Reply #31 on: June 22, 2015, 04:29:21 PM »
Just a quick update
Buddy kc4umo

Offline The Radio Shop

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Re: ID and Restore an original MTD 990
« Reply #32 on: June 25, 2015, 02:51:24 PM »
It is soon the 4th of July.

Got the motor done.

Hey, its red white and blue.
Buddy kc4umo

Offline The Radio Shop

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Re: ID and Restore an original MTD 990
« Reply #33 on: June 27, 2015, 11:54:29 AM »
Greetings!

Earlier, we had talked about what kind of motor it had, you found out it's a Briggs and Stratton 10HP cast iron.

Any idea if it ran? Started ok? Needed Carburetor? Electric Start, Pull Start - or PUSH start?  :P

New paint ... but how was the "Innards" looking?

Was reviewing the photos - they left it sitting there - a rusted wreck.

Hope they didn't neglect the motor too badly.

Regards!
:+> Andy <+:

Man I was wrong on engine size. Back in the 70's Briggs used the same block when building cast iron.  I ran the motor serial number 325431-0150-01-7201241 and found out lots of info.
This is a 32 cubit inch engine and that puts it at 16 HP. And was made in Jan 24th 1972.

Opened the engine up and everything looks good.  Compress is well with in spec, no back lash on the rod to crank journal.
The carb was the worse part of the engine. Looks like someone had changed the throttle spring and this let the throttle shaft vibrate in the bore.  So have a new carb kit and throttle shaft with butter fly on order.

I did crank the engine before tearing the tractor down. Drove it down the street and back. Motor ran fine other than leaking gas from the carb. Also the hydro unit pulled real good.
Buddy kc4umo

Offline The Radio Shop

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Re: ID and Restore an original MTD 990
« Reply #34 on: July 14, 2015, 08:52:19 PM »
just an update
Buddy kc4umo