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farmall b head gasket

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alpo

01-26-2008 17:35:18

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hello, ok i put my head and new head gasket on my farmall b today torque it to 85lb and it is still seeping water can i torque it more? the nuts on to head are 7/8 i already had the head milled. i have not had it running yet i have not got it timed right it will start for just a second and die thank you

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Roger46

01-27-2008 19:43:35

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Re: farmall b head gasket in reply to alpo, 01-26-2008 17:35:18

The A, B, and C engine are know to leak if the sleeves stick out of the block too far. Also, because of the location of the bolts, I think it is more prone to leaking on the right side as the bolts are too far inboard. Roger

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Red Dave

01-27-2008 07:53:19

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Re: farmall b head gasket in reply to alpo, 01-26-2008 17:35:18

These head gaskets need sealer used on them, did you use it? 85 ft lbs is 5 more than is called for.

Did you torque the head using the pattern called for in the manual? It is also important because it keeps the head pulled down evenly.

If you used the sealer, get it running and re-torque after it runs long enough to get up to operating temperature, that may be all it needs.

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glennster

01-27-2008 06:34:53

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Re: farmall b head gasket in reply to alpo, 01-26-2008 17:35:18

if there is a small crak in the block, you can try some sodium silicate in the cooling system. many years ago we had an ac ll crop combine that had a hairline crack in the cooling system. the mechanic that came out put some in the cooling system and it cured it. here is an article from the net on it Automotive repair
This article needs additional references or sources for verification.
Please help this article by adding reliable references. Unsourced material may be challenged and removed.(October 2007)

Sodium silicate can be used to seal leaks at the head gasket. A common use is when an alloy head motor is left sitting for extended periods or the coolant is not changed at proper intervals, electrolysis can "eat out" sections of the head causing the gasket to fail.

Rather than pull the head, a jar of "liquid glass" or Waterglass (as it commercially known) is poured into the radiator and allowed to circulate. The Waterglass is injected via the radiator water into the hotspot at the motor. This technique works because at 210 - 220 C the sodium silicate loses water molecules to form a very powerful sealant that will not re-melt below 1500 C. This approach is often used by disreputable used-car salespersons to disguise a leaking head gasket.

A sodium silicate repair of a leaking head gasket can hold for up to two years and even longer in some cases. The effect will be almost instant, and steam from the radiator water will stop coming out the exhaust within minutes of application. This repair only works with Water to Cylinder or Water to Air applications and where the sodium silicate reaches the "conversion" temperature of 210 - 220 C.

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Janicholson

01-26-2008 17:46:51

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Re: farmall b head gasket in reply to alpo, 01-26-2008 17:35:18

Over torquing is not a good idea. The head gasket should seal (I use copper coat spray on head gaskets). If the cylinder sleeves are not seated into the block all the way due to either the rim being too tall, or some residual crud under them, they will stick up high enough to cause leakage around the outside all should be even with the block deck, or no more than .002" taller). If the leakage is just a weep, and the standing size of the sleeves was checked, I would use a can of stopleak in it and give it a whirl. The only thing lost is the time it takes to realize it would not seal up, and the cost of the product. Fuel supply might cause the running issue, see if duel will run out of the carb drain in a healthy streem. If not that is why it won't run. JimN

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