Model 12 7T 1897

Your 7t use a 4600 motor in and you should removed the fuel filter housing gasket heshould be brook or the housing cover is cracked or could be too the fuel return line leak behind, and the drain oil plug
is opposit side to the magneto and for the poney oil leak check the
flywell have a loose up and dan it should be bad front bearing and change the front seal in same time and for the gar box use 80/90 oil.

The pony drain is that extension mounted on the clutch housing. The pony bottom is the clutch housing and there is a passage to the drain (you can see it in your picture next to the main engine fill tube). Takes 1-1/2 quarts.

Shouldn't have to use ether all the time unless compression is low. May improve if you have fuel issues once you get them straightened out.

The only snag to the parts manual is getting one that covers your serial number. You should also look for a service manual and the operation manual. The engine is covered in yet a different manual that covers the D4600 4-1/4 bore 6-cylinder engine.

Looks like we may be seeing a junior crop of operators coming up.

Nice grader!! Has the same engine as mine, I dont know how your starting it so i dont think anybody can tell you what your doing wrong if that the case.

The way I have been starting it...

Engage the pony
Open the gas to the pony
Start the pony
Spin the big motor in start
Wait till the main oil pressure comes up
Advance fuel to half way
Put big motor to run
Go back to start if pony slows or clutch slips
Back to run and watch the white smoke
Possibly bleed fuel from injectors
Once I get black smoke and pony starts to over speed, pull clutch and see if the big motor will run
Try this a couple of times
Big motor runs, shut fuel off to pony and let it die

Any thoughts?

lots of white smoke could have a pluged air clearner

Nice Grader! I need one of those. And the price was right!👍
It appears to be in very good shape, shouldn't take much effort to get it into reliable operating condition.
Good luck.
Jeff T

Nice Grader! I need one of those. And the price was right!👍
It appears to be in very good shape, shouldn't take much effort to get it into reliable operating condition.
Good luck.
Jeff T

Mark,

Rather than opening the throttle after you get oil pressure, you might try switching the main to "run" for a while first. Then after a few minutes of warming it with the pony, crack the throttle to about 1/3.

I've converted several D4's and the "new" Cat 12E to direct start and my procedure is the same for all of 'em. Crank the engine 5-10 seconds first 'til I get oil pressure, then crack the throttle. In cold temps, a quick sniff of ether and they rumble to life.

Thanks Mr. Grump,

I'll try "run" with no throttle, then a 1/3 throttle...Intake air system is clean...I can't imagine starting the girl with an electric starter...Process seems way to long...Did they ever start with the crank? Maybe it was just to turn the motor over for timing/wrenching...THANKS