Leaking head gasket

Foxen · Post by **Foxen** » Thu Mar 18, 2010 10:07 pm

Allright, at least mine doesn't slobber oil through the exhaust, smoke is visible but neither white or blue, more a blackish grey kind of colour, just judging from that I suppose it's in reasonably good condition, still I'd like to know if it will "improve" once we put it to use, use in our world means forest work and sometimes a little field work(disc harrow and normal harrow)?

Dandy Dave · Post by **Dandy Dave** » Fri Mar 19, 2010 1:38 pm

I've been York raking driveways with my Power Major and used it a lot last year on one job that had an uphill incline. Pulling the gravel in 3rd gear put a nice load on it. The old Power Major has been running great ever since, and starts better also. It sat for a lot of years before I got it. This year I have aquired a 7 foot Woods 184 MD mower to mow about 5 acres of field with. I can't wait to try it out. The last few years, I had a 4 foot Bush Hog Squealer on it, but it was too small. Dandy Dave!

Foxen · Post by **Foxen** » Fri Mar 19, 2010 10:18 pm

Hmmm... I just came to think of something, if it's smoking white as you start , apart from low compression could it be pump timing? I had to change the pump coupling due to it being skewed, the new coupling didn't have the timing mark on it so I lined up the notches in the couplings and filed the mark over, I guess that even the slightest degree or a half one off would make it harder to start? Should I start by retarding it or advancing it? Ideas anyone?

It started dead easy before I changed the coupling so I guess the timing's off...

henk · Post by **henk** » Sat Mar 20, 2010 7:27 pm

henk wrote: I read in the parts list that there is a seal washer under the gasket. Should I replace this to? And if yes are they available?

Anyone know what function this seal has?

Made some pictures of my repairs this winter and put them in an album:
http://www.mijnalbum.nl/Album=JRFIYPGV

Pictures from repairs that I've done so far:
http://www.mijnalbum.nl/Album=34JYINTZ

Post by **Brian** » Sat Mar 20, 2010 10:21 pm

Its the seal on the main oil gallery to the rockers.

henk · Post by **henk** » Thu Mar 25, 2010 7:54 pm

This afternoon I have put the head back on.
Tighten it in 5 rounds to 90 lb/ft. Now I'm a little depressed. This evening I filled the cooling system. After a while the coolant came out between the head and the engine on the in and out let side.

What can I have done wrong?

On pictures I have taken from the head and the engine it seems that this was also a little in the previous situation, but it never leaked coolant.

I guess I can't use the head sealing again when I remove the head again?

Pascal · Post by **Pascal** » Thu Mar 25, 2010 9:38 pm

Hi Henk,

That's indeed a very big disappointment...

According to my information, the bolts be tightened at 98 lb/ft.
Could that be the problem?

I hope you will find the solution soon.

henk · Post by **henk** » Sat Mar 27, 2010 6:53 pm

Today I have removed the head again.
A college told me to clean up the studs and threaded holes so the studs will turn easily. The four outer studs that are not under the valve cover were not running smoothly. Put a little oil in it. The thread from the studs are a bit worn at the place were the contact the cooling water.
Also I had not clean the surface of the head. Today I did. The cooling water has made some rusty places on the surface.
I hope this will do the trick. Now I have to wait for a new gasket.

henk · Post by **henk** » Sat Mar 27, 2010 7:50 pm

Does anyone know the torque for the studs from the in and out let manifold.
Can't find it in the I&T book.

Pascal,
According to the I&T book the torque should be 85 to 90 lb/ft.

Pascal · Post by **Pascal** » Sat Mar 27, 2010 9:08 pm

Hi Henk.

I hope this will help to get your engine running again!
Good luck!

JC · Post by JC » Sun Mar 28, 2010 7:58 am

Henk
I always clean all of the threads with taps and dies, and oil them before torquing.

The torque for the manifolds should be 20-25 ft./lbs.

henk · Post by **henk** » Sun Mar 28, 2010 12:45 pm

Thanks JC.

henk · Post by **henk** » Tue Apr 06, 2010 8:26 pm

Friday the new head gasket arrived and I put on the head. Saturday I assembled all parts and at the end of the day I could start. It starts and runs well. I was very pleased to here that sound.

This evening I run here hot and everything was ok. Tomorrow I will check the torque from the head and manifolds and check the valve setting.

Thanks for all the help. I learned a lot from this job.