Farmall H question

Farmall H, HV & Super H, 300 & 350, 1939-1958

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Mr E
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Farmall H question

Postby Mr E » Sun Jan 11, 2015 1:21 pm

Tractor runs perfect.
Pulling plows there is no smoke.
Tractor idling there is no smoke.
If it sits and idles for a while, there is some smoke when you speed the engine up.

Worn rings? Whats up with this?
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Re: Farmall H question

Postby John *.?-!.* cub owner » Sun Jan 11, 2015 2:37 pm

A compression test would tell you if rings are worn, but there is a good possibility it is the valve seals, since an H is an overhead valve engine. Of course, that is assuming the smoke is blue rather than black. If it is black it is just clearing the excess fuel and carbon that has built up idling.
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Re: Farmall H question

Postby Mr E » Sun Jan 11, 2015 2:45 pm

John,
I should have stated that the smoke is blue with some whitish color.
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Re: Farmall H question

Postby Steve-N-Tn » Sun Jan 11, 2015 3:02 pm

Roy--I agree with John as it sounds like oil pooling and getting sucked past the valve seals. The white is a bit scary as that sounds like water/antifreeze but probably condensation. What do the spark plugs look like? Will take a look when we get there if you want!! Steve

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Re: Farmall H question

Postby Mr E » Sun Jan 11, 2015 8:15 pm

Steve,
Took it to a plow day yesterday. Checked fluids before I loaded her. Radiator was jam up, no top off necessary. I wonder if there is something (Seafosm, maybe) I should put in tank and work her some more???
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Re: Farmall H question

Postby Steve-N-Tn » Sun Jan 11, 2015 8:24 pm

Roy--if it hasn't been worked in awhile, sounds like just condensation causing the whitish smoke. Unless you want to pull the head and do the valves, I'd just work it (Seafoam won't hurt anything) and see if it still does the smoke. But, doesn't sound like anything major. I know--famous last words but if it pulls OK, idles OK, and only smokes when it has been sitting idling, believe I'd run it and keep a close eye on the oil and antifreeze. JR and I'll take a look next month! I have danged jury duty all of Jan and Feb so hopefully I can do like Ron did last year and be "excused" for DSCF weekend!! Other than that Mrs. Lincoln, how was the play?

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Re: Farmall H question

Postby Mr E » Sun Jan 11, 2015 9:08 pm

All of Jan AND Feb??!! Wow! They obviously don't know you as well as we do. :lol:

The H pulls great. Pulls the 2-14s in 4th gear lickity-split. :lol:
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Re: Farmall H question

Postby Steve-N-Tn » Sun Jan 11, 2015 9:30 pm

Doesn't sound like anything wrong there!!

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Re: Farmall H question

Postby brichter » Mon Jan 12, 2015 8:51 am

That would be a great incentive to go straight and stay out of court!!
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Re: Farmall H question

Postby Dusty B » Sun Sep 20, 2015 11:21 am

Mr. E - If'n it ain't broke, don't fix it!!!!
Grandpa's '41 B
'56,,'57,'59,'71 Cub
'51 Super C
'55 Case SC
Fairbanks-Morse 3KW Generator
Dad's DB garden tractor
'48 DeSoto
'31 "A Coupe
'51 Ford PU
'55 Dodge PU
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Re: Farmall H question

Postby LincTex » Thu Sep 24, 2015 6:07 pm

Mr E wrote:If it sits and idles for a while, there is some (blue) smoke when you speed the engine up.


It is sucking oil past the intake valve guides.
It'll only happen when manifold vacuum is high.
Under load, there isn't enough vacuum to cause this.

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Re: Farmall H question

Postby Scrivet » Thu Sep 24, 2015 9:37 pm

LincTex wrote:
Mr E wrote:If it sits and idles for a while, there is some (blue) smoke when you speed the engine up.


It is sucking oil past the intake valve guides.
It'll only happen when manifold vacuum is high.
Under load, there isn't enough vacuum to cause this.

That may be true but my H does the same thing and I have had the head redone because of two burnt exhaust valves. I don't think the intake valve guides on mine would be the cause. I didn't do anything with the pistons and rings though and I doubt they have been touched for forty years. Puttin around the smoke will make your eyes water at times, put a load to it and it clears right up and stays that away. I just figure my tractor doesn't like to sit around and idle but wants to WORK! (Or it's telling me it needs new rings :wink: )

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Re: Farmall H question

Postby LincTex » Mon Sep 28, 2015 4:29 pm

Scrivet wrote:That may be true but my H does the same thing and I have had the head redone


That doesn't mean anything - I have had to warranty 6 different sets of cylinder heads (1 Ford, 3 Chevy, 1 Dodge, 1 International) from three different machine shops in the last 18 years - ALL from bad valve guide issues. Machinists are NOT taught to take their time to "do the job right" anymore... they are taught to "make it to the end of the warranty" these days. I have had cylinder head work done in the 1980's (done right) on engines that run like new to this day. about 85% of the work I have had done in the 90's was done right....

BUT NONE of the cylinder head work done since 2000 has been good unless I come to an understanding with the shop owner BEFOREHAND - - telling him I'll pay a little extra to have the job done RIGHT.

I don't want "mediocre work" done - which is what you'll always get when doing the work at "posted shop prices".

If you want good machine work done right anymore, it has to either be offered up to pay more, or just go to a good shop that costs more in the first place. The only place in Central Texas I'll take any engine parts to be machined (Barnard Racing Engines) regularly builds $20,000 & up race engines. Yes, he costs more to have work done - but it's ALWAYS done right.

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Re: Farmall H question

Postby Dusty B » Sun Oct 04, 2015 1:19 pm

Mr E wrote:All of Jan AND Feb??!! Wow! They obviously don't know you as well as we do. :lol:

The H pulls great. Pulls the 2-14s in 4th gear lickity-split. :lol:


Mr E -- Don't think it would pull it here in the IL soils in 4th if you're plowing at any depth at all!!! LOL !! Dusty B
Grandpa's '41 B
'56,,'57,'59,'71 Cub
'51 Super C
'55 Case SC
Fairbanks-Morse 3KW Generator
Dad's DB garden tractor
'48 DeSoto
'31 "A Coupe
'51 Ford PU
'55 Dodge PU
God looks out for those of us who don't know how to look out for ourselves!


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