Farmall M LPG Hood cutting

JohnG(TX)

Member
I know some tanks require the back edge of the hood to be scalloped to match the LPG tank. Is this required for a FACTORY tank with the controls on the back (not the side)? I don't want to cut a hood if I don't have to. I have both a factory and aftermarket tank, and have a line on 2 rough cut hoods. I will be using the factory tank. If I don't need a cut hood, then I can go with my straight original hood.
 
If you don't want to cut your hood I think I still have the hood from a LP M. I know I still have the tank but would have to check on the hood for sure. Probably too far to ship anyway.
 
What kind of tank do you have? Does it go north/south or east/west? All of them require some level of hood trimming. If it helps I can take photos of whatever config tank you're working with as I have a small pile of LP Farmalls.
 
(quoted from post at 16:19:46 10/28/14) What kind of tank do you have? Does it go north/south or east/west? All of them require some level of hood trimming. If it helps I can take photos of whatever config tank you're working with as I have a small pile of LP Farmalls.

I actually have one of both. One has the controls on the carburetor side and the other has them facing the operator. The one I call a factory tank is exactly like the one depicted in the SMTA parts manual and came off my uncle's SMTA.

If either one requires a modified hood, then I will get the pair I found earlier.

Where are you located?
 
The ones with controls facing the operator sound like the ones on SM's I have. I say the tank is "east/west". I have 4 with factory tanks and 2 with aftermarket in this configuration.

I have one SMTA with an east/west tank. The tractor either was or was destined originally to be a cotton picker. I have two other SMTA's that have the north/south tank with valves in a monoblock at about the 10 or 11 o'clock position as viewed from the operator station.

All of them have modified hoods.

I am up in Mclennan county.
a172740.jpg

a172741.jpg
 
I also have a small aftermarket tank which allows the steering rod to go over the tank, not through it. I have never seen another one like this before. I'll try to post a photo later.

Also, I like that Luber-Finer filter. I have a few of them hanging around. my 1942 M came to me with one installed. Do you have any information on them? Are they much better than the original IHC units?
 
I don't have any info on those filters. That SM is a "should run" and is on the winter project list. I see those filters now and then on other makes too, so they had some appeal. It's the only one I have though. I plan to leave it on there.
 
(quoted from post at 15:55:28 10/28/14) I know some tanks require the back edge of the hood to be scalloped to match the LPG tank. Is this required for a FACTORY tank with the controls on the back (not the side)? I don't want to cut a hood if I don't have to. I have both a factory and aftermarket tank, and have a line on 2 rough cut hoods. I will be using the factory tank. If I don't need a cut hood, then I can go with my straight original hood.
mvphoto12561.jpg


This is tank on my SMTA don't believe tank is cut.
The factory tank was made to fit.
Tony
 
Tony,
That is just like my tank, or at least the one I will be using. So, you are saying the hood is not modified for this tank? Great news. Thanks.
 
JohnG,
If you go to SM/SMTA parts book you'll find that this tank was offered by I.H.
If you read the little sticker on tank picture in parts book it says equipped at factory with L.P.
So many people believe that I.H. did not offer L.P. on a SMTA my believe is that a SMTA is basically a Sm with ta and being they were manufactured less then a year the SM tank is the proper one for SMTA and it will fit without cutting hood.
Some people say the long tanks are the proper ones but to my thinking they were after market lacking the refinement of the factory supplied tanks.

Tony
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Tony, can you check the SMTA parts book to see if there were 2 hoods listed (3 including diesel)? That should definitely show that the gas hood is the same as the LPG.
 
JohnGTX,
my I.H. TC-46 parts manual lists#1 56513dbx hood for gas SM-SMV .501up to 52627
#2 357-093-R11 hood L.P. SM-SMV 501 to 52627
#3 360-523 -R11 hood Gas SM-SMV 60001-UP
SMTA's are 60001 on up so I would think a 357-093 R11 from a SM l.P. would be the one because the extra length of tractor begins behind bell housing front tank mount is in same location as SM and rear tank mount is on the hydraulic tank.
My hood has a slight semi circle to fit snugly to tank.
The little decal I mentioned in above above is on TC-46 page 217 on right side of tank says This tractor equiped at factory.
Tony
 
No LP hood is listed for a SM 60001 and up witch would be a SMTA tractor in a regular SM parts book. Also all LP tank and parts listed in a regular parts book stop at serial number 52627.
Shows a different hood for a SM LP and a gas. If I remember correct the factory SM LP tank is different in front of the tank.
SMTA hoods listed are a gas, kerosene and distillate.
Diesel hoods are the same on a SMD and a SMTAD.
Also the lower radiator cast pipe is longer on a SMTA than a SM and no LP pipe with the coolant opening is shown for a SMTA. Pipe shown ends at 52627 serial.
Can't say one way or the other 100% if IH made a SMTA LP tractor at Farmall works but I don't go with the idea you can say they did going by the SM parts book.
If they did build any there my opinion is not on the regular production line and for special customers or pre production.
SMTA hoods are longer on the front end because of the upper bolsters. That's also why the longer coolant casting on a SMTA. Vertical steering shaft and radiator sets about a 1.5 inch more forward compared to a SM. SMD front bolster is the same measurements as a SMTA gas and diesel weather it has the corner holes or not and that's why a SMD and SMTAD hood is the same.
If you notice Tony's tractor, on top of the hydraulic reservoir there's another set of holes to mount the rear tank support 5 inches apart. When that kind of tank or even a gasoline tank was put on a SM the rear mount ends up going in the rear holes of the hydraulic unit on a stage 2 SM. M will also end up with the tank rear 5 inches closer to the steering post.
 
Not saying SMTA's were necessarily built at factory .
Being they were built for such a short time our dealer would scollpe the hood and use the SM tank which were IH sanctioned and fit the SMTA which INMO is as close to I.H. as you can get.
Out here in old cotton country there were many M's, SM's, SMTA's on propane Our Dealer at the time fitted many in the fashion I described.
Tony
 

Lots of talk about whether or not factory installed propane on SMTA.
Well , My argument is in parts book this tank is the only one listed and granted for a SM .It also had the sticker on right that says" tractor equipped on L.P. gas at factory" under has I.H. factory notice.
This is the closest documentation of correct tank on a SM and my argument is that SMTA is basically a SM with 6 inches added.
No one can find documentation of the proper after market tank for SMTA as there are two or three styles I have seen
In our area was big on propane in the 50's &60's and our dealer would fit any ordered SMTA with the factory parts SM tank.
I am restoring my SMTA which has a S.M. tank .I am taking replica of above mention decal and have new ones made that
read "this tractor equipped on L.P.gas at dealer"
Under print the old dealer logo on decal.
That way I am doing what I believe is correct but not try to mislead anyone that it was done at factory as we have no documentation of that. they were fitted at dealer.
What think you fellas?
Tony
 

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