overheat

[jdeere86]

hey all

just drained oil , replaced oil pan gasket , oil filter - filled with 15w-40 rotella - started up and noticed after running for a minute or so that the engine block area got real real hot - wondering if i should have just used straight 30w or what could be going on?? i did put some sea foam in with new oil

[Eugene]

Did the oil pressure come up? Problem is not the type of or weight of oil.

Coolant level? Coolant circulating problem?

[jdeere86]

oil pressure goes right up about 2/3rds then settles around 1/2 way - it did not overheat before changing the oil ... does have fuel sitting in it through the winter , maybe thats part of problem?

coolant level is good

[Eugene]

Stuck thermostat? Coolant circulation problem?

Since oil pressure comes up - not the problem. Since engine starts and runs - fuel not the problem.

[jdeere86]

how should I go about checking both of those things?

[Donegal Cub]

If Its a Cub there is no thermostat in it. If it is a tractor with a thermostat in it take it out and test it in a pan of water put on heat the stat should open just before the water reaches boiling point. This is just a crude test but it will tell you if the problem is the stat. Otherwise you have a blockage somewhere in the cooling system.
Bernard,
Donegal Cub.

[jdeere86]

would draining radiator and running one of those bottles of cleaner through it help??

[Eugene]

Replace the thermostat, first thing. Probably less than $10-.

[John *.?-!.* cub owner]

What tractor do you have? Most of the Super A were thermo siphon, which did not have a thermostat. I think the late ones and the 140, etc. had water pumps and thermostats though.

[Eugene]

I think it's an IH 140. Johndeer86 also mentioned a standard Cub. But the placement of the post indicates the 140.

[jdeere86]

Yeah it is a 140 - what is throwing me off is that it did not seem to have any sort of overheating trouble just a week ago before i changed oil - got out of work too late tonight to look at it more - went to buy some 93 octane on break and the only gas station in a 30 mile radius was fresh out

[Eugene]

What did I tell you, twice?

[jdeere86]

I know, sorry was not doubtin you - I am going to check out the thermostat today and order one also to have on hand

[John *.?-!.* cub owner]

I realize this is a stupid question, but is there something covering the front of the radiator by chance?

[JoeB]

Would not hurt to check / inspect fanbelt.