WD 45 Motor Question

[Maddog3355]

I?m looking at a WD 45 that a guy has for sale. He said when he bought it it had a blown head gasket and he replaced the gasket. It has been sitting fo a year and when I pulled the dip stick the color of the oil looked good but there was moisture in it.
What?s everyone?s opinion?

 

[Ted in NE-OH]

If it turns over freely, probably not too much risk.

 

[jr1983]

Crack the drain plug see what comes out. Don't take it out just loosen in till the water or coolant or whatever comes out in a trickle. If it's clear you're probably good.

 

[Aaron SEIA]

I'd do like others have said. Crack the pan plug and see what comes out. Antifreeze would concern me. A little water wouldn't. Condensation from sitting over a year or running with very little time could account for the look. A lot of antifreeze could indicate a sleeve oring is bad. How much did it run after the head gasket job and did he change the oil?
AaronSEIA

 

[Maddog3355]

He said he changed the oil a couple times since the head gasket replacement. He was going to put a battery in it
today and change the oil and get it running. He wants $600 for it and the tires are worn and dry rotted but they are
holding air. Be nice if it had a good motor and no cracked head.

 

[4wdtom]

$600 seems low for a good running tractor, especially a 45. I would suspect something. Some of course depends on the condition of the rest of the tractor.

 

[DrAllis]

I'm thinking a cracked block more likely than a cracked head.

 

[4wdtom]

Are you referring to the crack in the web between the cylinders, between the crankcase and water jacket? Repaired by cleaning, possibly a cross bolt, and a lot of
Permetex?

 

[Maddog3355]

Thanks for the replies. He got it running today and tomorrow evening I will crack the drain plug and see what we got.

 

[Maddog3355]

I talked to him last night and he said when he went to change the oil yesterday the oil had antifreeze in it so something is wrong. Might have to pass or buy it and find a good head which might be a chore .Might be why he is only wanting $600.

 

[DrAllis]

(quoted from post at 08:48:16 03/11/20) I talked to him last night and he said when he went to change the oil yesterday the oil had antifreeze in it so something is wrong. Might have to pass or buy it and find a good head which might be a chore .Might be why he is only wanting $600.

IT MIGHT BE A FREEZE PLUG IN THE TOP OF THE HEAD UNDER THE VALVE COVER, BUT IT AIN'T THE HEAD. IF THE FREEEZE PLUGS AREN'T THE ISSUE, IT'S A CRACKED BLOCK !!!

 

[Aaron SEIA]

Could also be sleeve o-rings, couldn't it? Pulling the valve cover would confirm a soft plug.
AaronSEIA

 

[DrAllis]

Could be a sleeve Oring, but I've never ever seen that on a gas engine. I have seen several cracked blocks. Either way, it's a remove the pan and see where the coolant is dripping from and if from down below, tear the engine clear apart to fix it.

 

[Maddog3355]

Went to check it out and before we started it I cracked the drain plug like some of you suggested. A couple teaspoons of antifreeze came out before oil and he said he didn?t run it but 10 minutes max. I had to pass on it just to many unknowns. I would of took a chance on it for scrap price but not for $600. Thanks for your all?s opinions.

 

[Ted in NE-OH]

Could be just condensation, run it to see if it reoccurs.

 

[DrAllis]

(quoted from post at 09:59:29 03/15/20) Could be just condensation, run it to see if it reoccurs.

REALLY !!! I've never seen condensation have antifreeze in it.

 

[TX-AC]

How close is tractor to you?
An inexpensive way to check if core plugs are leaking as it may be just that simple:
Drain radiator down one gallon.
Add a gallon of fresh green a/f, run up to temp and let it circulate well.
Pull valve cover and blot out any fluids for a good visual.
A hot engine not running that is full on radiator will push a/f out any leaking core plugs. Or you can start unit and monitor for a/f, fresh green will show up quickly if core plugs are leaking.
If leaking, drain radiator down catching fresh a/f for re-use, 1 - 1-1/2 gallons to lower level below head for core change-outs (I always pull some from block petcock also).
Change ALL core plugs, should not be more than $2 each.
Drain a/f at oil plug again.
Add back a/f, fire it up to circulate w/ valve cover off to check plugs installation, a good 20-30 mins. run time to ensure air burped out and full of a/f.
If no visible core plug leaks after you know it is full of a/f and circulating, shut it down overnight.
Pull a/f off bottom of oil pan via plug (glass jar is best), top off with more oil and run up to temp for a good 20-30 minutes, checking again for a/f at plugs you replaced.
Let sit 4-5 hours or overnight and check for a/f at oil drain plug again.
If any residual a/f found, it should not be much. Run, sit, repeat and if you don't see a/f in oil sample, core plugs were the problem. Do a fresh oil change with filter and re-check at plug after running a few hours to confirm.
If still getting a/f in oil, time for phase two.