Re: Super A /140

Posted by Stan(VA). on March 14, 2005 at 21:04:52 from (208.59.156.169):

In Reply to: Re: Super A /140 posted by Hugh MacKay on March 14, 2005 at 11:51:52:

Hugh,
I went back to the books on this one. Have you had your 140 apart? Or what is the assumption of a 14 bolt head based on? If you are basing it on the motor having the new design with the different water pump arrangement, I don't think they are related. If you have actually counted the bolts and found 14, then I am clueless. Below is what I have found from time in the parts books (CDROM) and actually pulling several motors apart.

What I glean from going through my parts CDROM is that the C123 designated block starts on the hundred series with C123-501.

C123 501-36000 as used in x00 has block 354898 and head 251172/355046*

C123 36001-65000 used in x30 has block 366204 and head 355046/366299*

C123 65001-up as used in x40 has block 367825 and head 366299

notes:
* - all are gas head numbers. Head change dates are unclear from parts book, but 251172 is as on C/Super C, 355046 has larger valves as in 366299. I haven't seen a 355046 yet so don't really know how they fit in the mix.
- all C123's (and C135's from the 330/340) show the same head gasket 366300
- new water pump design (meaning new block) at 65001
- all heads listed as 9 bolts, with a split at 39400 as head studs changed to head bolts.
- C135 as used in the 330/340 shows 367727 block, 366299 head with 9 bolts and head gasket 366300
- C135 as used in the 404 shows 375596 block, 379240 head with 14 bolts and head gasket 383525
- C135 in 404 also shows different crankshaft/rods/bearings/rear mail seal retainer.

Engines I have pulled apart at the moment are:
- a 230 (ser num 39465) (block verifies, head can't read casting number but has large valves, looks same as 140 below) 9 bolt head;
- a 140 (ser num 101390) (block verifies, head 366299). Casting date 5-25-H (1962) tractor ser num 20874, 9 bolt head;
- a C135 (ser number 128346) power unit block (casting date'T', with late style crank/rods/rear main seal) set up for 14 bolt head (I don't have the head).

Also had a 240 U motor here a year ago with 'E' (1959) casting date, block and head numbers matched the 140 motor.

This 140 is only about 1000 away from yours, so I would be surprised to see a change since the parts books don't note anything near those numbers. I'm interested to hear what you find on your side.

If possible to read the casting numbers on the heads of your 130 and 140 that would be great too (since I can't read my 230). It's cast on a narrow edge right where the manifold bolts on in the center over the exhaust ports for cylinders number 2 and 3, but very difficult to read. You can see it if you remove the hood. Anyways this is how I've concluded that the C123's are all 9 bolt heads and and the C135's are where the split occurred.
Stan(VA).

Follow Ups:

• Re: Super A /140 Hugh MacKay 03:38:02 03/15/05 (2)
  • Re: Super A /140 Stan(VA). 07:21:02 03/15/05 (1)
    • Re: Super A /140 Hugh MacKay 08:24:59 03/15/05 (0)

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