Source for Useable or Rebuildable motor for '73 450-B ?

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preventec47
MC crawler
MC crawler
Posts: 2
Joined: Tue May 17, 2022 4:24 pm

Source for Useable or Rebuildable motor for '73 450-B ?

Post by preventec47 » Thu May 19, 2022 12:19 pm

I have a complete 450B that was running but due to extreme corrosion in the block-sleeve interface the engine cannot be rebuilt and it will not hold coolant. I bought it used and it leaked badly
ever since I had the used motor installed. Consequence of putting plain water in as coolant instead
of antifreeze. So I either sell it as parts machine or try to get a running motor in it. The undercarriage is worn out as well and the last few years I used it, I only used the back hoe
and put water in it every 20 or 30 minutes. I had to tighten the tracks up every 50 - 75 yards
with a grease gun as the adjustment cylinders leaked grease badly.

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Al Swearengen
440 crawler
440 crawler
Posts: 126
Joined: Sat Aug 28, 2010 8:01 am
Location: Sierra Nevadas...Gold Country!

Re: Source for Useable or Rebuildable motor for '73 450-B ?

Post by Al Swearengen » Thu May 19, 2022 1:33 pm

preventec47 wrote:
Thu May 19, 2022 12:19 pm
parts machine
Unless you have a fat wallet and love to wrench on really expensive heavy stuff 8)
'99 450G 6-Way

B Town
350 crawler
350 crawler
Posts: 752
Joined: Fri Dec 11, 2015 7:04 pm
Location: Western Iowa

Re: Source for Useable or Rebuildable motor for '73 450-B ?

Post by B Town » Thu May 19, 2022 2:04 pm

Third option. Keep your crawler as a donor. Buy a good B series and you have a abundance of parts. This is what I did. Retired tired iron, keep them, but upgraded to better machine.

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