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? ALLIS

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DON

01-23-2002 12:55:34

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MY BROTHER JUST BOUGHT A WD45. THE ENGINE BLOCK HAS A PLATE BOLTED TO THE RIGHT SIDE. DID A 45 HAVE THIS PLATE. IT HAS THE CURVED GEAR SHIFT. THE MAN HE BOUGHT IT FROM SAID IT WAS A 45. CAN ANYBODY CLEAR THIS UP FOR US. THANKS DON

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DON

01-24-2002 13:42:10

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

THANKS EVERYBODY FOR THE INFO. DON

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01-24-2002 09:02:50

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

All 45s had a solid cast block. Some may have had conversions put in, but most tractors now seem to have had other parts put on, including engines. More than likely it is a late WD which had the curved lever(check the serial #). BUt it could also be a 45 that needed an engine and they found a good WD engine to put in it because they didn't need all the power, just needed it to run.

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Robert

01-24-2002 04:36:35

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

The early WD-45 had the plate on side of the block, I have 2 of them as well as a WD

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Bill from up north-engine specs.

01-23-2002 22:24:45

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

"W" engines are/were originally 4.000x4.000 = 201cu.in.
170 engines are 4.000x 4.500 =226cu.
However -there were/are power peak assys.available to increase the bore to 4&1/8" and also a conversion kit to change "W" engines to a 4.5 stroke @7.1:1 compression- included shorter rods.

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JMS/MN

01-23-2002 20:37:32

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

If your engine has a bolt-on cover on the right side it is not a WD45 engine. The WC and WD block had that cover, all WD45's had a solid casting. Period.

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Gary

01-25-2002 04:16:42

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Re: Re: ? ALLIS in reply to JMS/MN, 01-23-2002 20:37:32

Orginally I'd say you were right,but in 50 years alot can happen.Its possible to build a WD45 engine in a block with a plate on it,I know of several such engines running in WD45's and then throw in the WDs and WD45s that have been repowered with Leroi engines and you can have some confusion.The only sure way to tell is pull the head and measure.

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Tom

01-23-2002 18:24:07

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

As I understand it all wd engines had the plate,and all45 engines did not. Some late WDs had the constant mesh transmission with the curved shift lever. Check engine no on left side of engine near carb and air filter. Check tractor serial no. on left bear of differential housing near brake adjustment screw.

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Bryan Smith

01-23-2002 13:09:46

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Re: ? ALLIS in reply to DON, 01-23-2002 12:55:34

The late WD's had the constant mesh gearshift as well as all the WD45's, so that's not a clear indication. I've heard that the WD engines all had the plate and that WD45's didn't, however, I think some WD blocks were upgraded to WD45 engines with the larger pistons.

Check the serial number - it's on the rear axle between the left brake spring hole and the center of the axle. It will be stamped lightly, so some scraping of grease or paint may be needed. The first WD45 had SN 146607, so an ealier number points to a WD. But again it could have had a WD45 engine upgrade.

Also check the drawbar connection. WD45's had the snap coupler bell under them starting at serial number 151381. WD's had a pin-type connection to the drawbar with no snap coupler bell (although some may have been upgraded to a snap coupler). If there's no snap coupler it's probably a WD. I think the WD's did not have traction booster, so a large spring in snap coupler attachment point would indicate a WD45, no large spring would indicate a WD with an added snap coupler.

Other folks please read this over and correct as necessary.

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C Tucker

01-25-2002 16:51:59

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Re: Re: ? ALLIS in reply to Bryan Smith, 01-23-2002 13:09:46

The snap couple drawbar won't tell you anything.A couple weeks ago I looked at a parts tractor. It was a WD45 with a 45 engine,serial # checked out but it had the old WD coil spring pin type drawbar. I don't know why anyone would swap backwards but it is possible.

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POG

01-23-2002 20:56:57

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Re: Re: ? ALLIS in reply to Bryan Smith, 01-23-2002 13:09:46

The WD-45 had the same 4" bore as the WD, WC, D-17, 170, and 175.

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Bryan Smith

01-24-2002 05:40:10

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Re: Re: Re: ? ALLIS in reply to POG, 01-23-2002 20:56:57

You're right. The WD had a 4" bore by a 4" stroke (they called it a square engine I believe) for 201 cubic inches. The WD45 had a 4" bore by a 4.5" stroke for 226 cubic inches.

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