Case 930 engine help

Hello all. My name is Evan, and I have a real interest in antique tractors. I just received a 1968 Case 930 CK as a high school graduation gift from a family friend. The plan is to get the tractor running for now when I have time, and when I'm done with school it will become a restoration project. However, there is a problem I'm hoping someone here can help with. I'm new to diesels and somewhat over my head here.

The Case diesel doesn't run very well at all. It starts ok (no batteries so we have to pull start) and idles with a small amount of white smoke. However, it will not rev up. Pulling down the throttle causes it to pour black smoke and bog down. returning to idle will dissipate the smoke but the motor knocks for a few seconds. Also, we think it isn't running on all 6 cylinders, the 2 closest to the driver seemed dead. The tractor hadn't run in 3-5 years when I got it, and who knows how well it ran before.

I cracked the lines and it is getting fuel to all the injectors. I also changed 2 of the fuel filters and there didn't seem to be any water in the fuel. I also added SeaFoam to what diesel was in the tank.

Does anyone have any idea what could be causing the problems with the engine, how the issue could be fixed, and how much it might cost? I probably don't have the money now but intend to fix up the tractor in the near future, as it is the first tractor I own. Thank you for any help! If I can figure out how to attach pics to these posts I will.

Thank you to anyone who can shed some light on this issue.Overall, I'm really happy with the tractor, and I got it for a pretty good deal!

Check the air system for blockage first, that will cause what you describe, and be an easy fix if Mr. rodent has been busy..

Welcome to the Case forum.
The air intake system is where I would focus my attention also, as Dieseltech stated.
Keep us posted, and many here will help you along as you proceed. I'm sure you will have many more questions as things progress,
There is a great bunch of knowlagable people on this forum willing to help you.
Loren

. Hello Evan.
While I can't offer any mechanical assistance, I do want to voice great pleasure seeing your enthusiasm
for such a project at your age. Members of this forum are very helpful.
Yesterday I met a newcomer to this community. At age 17 he bought his grandpa"s 1939 OLIVER
60 and began the task of restoring it. Now after 20 years the project has just been completed-a
beautiful job well done.
Good luck and learn all you can about CASE equipment. BTW, J I Case's birthday is about 9 days
from now ( Dec 10 ).

Good going Evan---welcome to the "old tractor world" I remember getting my first tractor when I was a sophomore in high school. a H John Deere-gave $30 for it. The pictures are of my Dad pulling me home-had a cracked head. GOOD LUCK---Tee

Congrats on getting your 930.

I agree with checking the air intake system for blockages as the cause of the black smoke and bogging. The light white smoke may be an injector that isn't firing right or the engine is just cold. These engines are known to be cold blooded and mine will have a light gray exhaust till the engine warms up a bit.

You mentioned that you needed batteries. Do yourself a favor and buy the biggest 12 volt battery that will fit in the box and use one. The original system uses 2 6 volt batteries in series to get 12 volts. The 6 volt batteries don't hold up well and are problematic. Even better is to use 2 12 volt batteries in parallel so you have the same 12 volts but 2 times the current available for starting. It works much better but requires different cables than the factory ones to make it work.

Does this tractor have 2 or 3 fuel filters? If it has 3 I would also change the third one.

If you are not familiar with Case diesels one other thing to avoid is using ether to start the engine. These engines are prone to crack heads if ether is used. A good block heater or the intake heater with good batteries will aid in starting the engine if you live in a cold area.

I would recommend getting the operators manual and possibly the shop manual. They both have good information on operating and fixing the tractor and worth the expense.

Good luck keep us posted and post some pictures.

Eli

If the fuel has been in the tank several years you probably have slime (algae) growing in it. Drain the tank and see what color fuel comes out. Probably black color. New fuel will make a big difference. My 930 acted like yours. We don't use it much and slime was bad. We removed the fuel tank and carefully cut the entire back out of it. Lots of slime and rust. Put tank in 150 gal rubber stock tank and used electrolysis to clean it. About a week to get it done. Sprayed inside of tank with acid to stop flash rust, welded back onto tank. You will need to repaint the tank as electrolysis removes all paint. Runs great now. Tank has 2 baffles so hard to clean without cutting it open. Keep anti-bacterial (slime killer) in it all times. Get mine at Oreillys. $30 for about 16 oz. 1 oz does 50 gal. If you have slime the upper filter near the power steering pump will need changed also. Good luck with the 930.

Thank you everyone for your kind words and good advice. After inspecting the air system, I found that the oil bath air cleaner was so full of water and sludge it poured out when I detached the bottom. Hopefully this solves the issue, as the rest of the air intake system on the tractor was clean.

I drained some of the fuel and it was all red, no black. I will throw some slime deterrent in the fuel tank once I can pick some up.

I've included some pictures of the tractor nowadays, as well as photos of me on the tractor taken in 2006, when I was 9. Me and this old Case have history, and I'm glad to have it back.

I havent tried to start up the machine yet, but will update as soon as I do.

Thank you all, Evan