TO-35 (1958)

Looking at 1958 TO-35, mostly original, has worked but not beaten. All the twiddly bits work, 2-stage clutch, 3-point hydraulics, PTO and such. Starts like all the write ups and U Tube adventures. Once started, runs smooth, very little diesel smoke and no indication of oil smoke. All fluids are suspect and if I go thru with purchase will be changed out with attendant filters.

Two areas of concern, I hope the pixs attach, appears to be blow by of piston rings as oil will pop as drips out of dip stick tube, seal at top of is gone. At idle no leakage, but with 1/2 throttle and above is is a regular stream, and this is with the oil level at lower mark on dip stick. Crankcase vent on exhaust side of engine has a regular slight puffing pulse, no back suck of possible stuck or leaking valve.

And second is oil or fuel ?? leak from what appears to be rear shaft of fuel pump drive fitment. Leaks around the rear retaining nut, on what I was told was the pump drive shaft.

I hope the pics come thru this time.

After pic loads make sure you hit continue.

(quoted from post at 15:22:15 05/19/14) I hope the pics come thru this time.

Click to expand...

From your post I'm assuming that it has the 23C diesel. I've got one as well. The rings are shot in mine and I plan on doing a rebuild this winter. Mine does have what I consider a lot of blow by out the breather tube. I wished I had done a leak down test on it when I had it tore apart this past winter. I will do a leak down before I pull it apart just for kicks and giggles. I would check to make sure the breather/blow-by tube is not restricted in any way. If it is, you could be building pressure in the crankcase at which point the oil will get blown out anywhere it can find a path. This will involve removing the fuel tank , removing the valve cover and snaking the line. One you have the valve cover off you can adjust the valves while your there. You can get just valve cover gasket from this site, you will need to call them though. PN is S.42393 (Sparex) Equivalent 829029M1.

With mine when cold I give it about 30 seconds of glow plug heat and it starts right up, once it's up to operating temperature it will generally start without heat.

I also believe the exhaust pipe and muffler are to small for this engine Mine has has what I consider a high exhaust velocity exiting the tail pipe from the muffler. If you put your hand over the inlet of the air cleaner you can feel it pulsing positive and negative. When I have it down I plan to address that as well.

Once you get the pictures posted up someone should be able to point you in the right direction.

Photos of two questionable areas.

Dip Stick leak occurs with 1/2 throttle or above and becomes a larger stream with more throttle. Crankcase breather tube on other side of engine allows a slight puffing of air, no oil, and no back sucking as a stuck valve might indicate.

Leak at back side of fuel pump drive and attachment to block area appears to becoming from the rear most of two nuts. I was told this is probably the fuel pump drive shaft and has a bad seal. It appears to be engine oil leaking by black color.

Comments, insight and speculation are very welcome.

Thank you to all who assisted in "add photo" advice, now I will try and follow your thoughts with reduced size pics.

Fx