Posted by jdemaris on June 15, 2010 at 05:55:04 from (67.142.130.39):
In Reply to: Starter for Deere 2640 posted by Frank in Florida on June 14, 2010 at 18:09:59:
Gear-reduction starters can crank the engine a bit faster when under a very heavy load, but spin it slower when not. There is no big overall gain, one way or the other. Delco made two versions of the direct-drive diesel starters the biggest one is the best "overall" cranking starter. Deere used to call it the "900 amp" starter; not sure why, whereas the standard starter was the "700 amp." The 900 amp starter has a main housing that is just one OD overall. The 700 amp starter has two ODs and is smaller towards the rear - i.e. it steps down.
By yourself a $10 pump destroker and any starter will work fine. All Deere tractors with closed-center piston pumps can develop hard cranking problems.
Just about all new starters now come from China (even if bought from Delco). Many of the new gear drives look the same on the outside but come with different watt power ratings. Get specs before you buy. Many brand-new starters around for $100 that replace the Delco two-bolt starters. I've got many and all have been fine. Got them on my diesel pickup trucks also (Ford and GM).
There are many resellers buying new starters from China on pallets for $50 each and reselling. Subsequently many are buying the cheapest ones. Ask first and get a power rating, since many no longer post those specs.
A few examples of specs:
Original Delco direct-drive - 2500 watts of power. Newer Delco authorized gear-drive- 4000 watts Best Chinese gear-drive clone - 3700 watts Other Chinese clones - 3000 and 2500 watts
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