Injector Pumps Rebuild/Advice

I would like to thank all of the people on this board that helped me with my recent problems with my injector pump on my M2. I am very impressed with the knowledge and experience people have here.

I also read the debate here on whether to rebuild yourself or send it out to a pump shop for repair. I initially thought that since I had a repair manual with pics that detailed the repair step by step, that I would attempt it, so I ordered the kit.

After looking at the procedure in detail, I began to list all of the special tools needed to complete the job and after about 15 or so, I realized that maybe it would be better to send it out rather than buy tools that I would probably only use once.

I noticed that one of the members on here (Dieseltech)really made an attempt to provide answers to all of my questions; it was obvious that he had a lot of experience with injection pumps.

I sent him an email and asked it he knew anyone that would rebuild the pump for me. He quoted a very reasonable price and told me to ship it to him. Also stated that if it was too bad and not repairable, he would just sent it back.

I packed the injector pump and the rebuild kit it into one of the post office's bulk shipment boxes and sent it to him for about $18. When I got it back in about 5 days, I thought that it was not repairable and he just sent it back. However, upon opening the box, I found that it was completely redone, cleaned up like new with plastic caps on everything.

I was very happy and after installing, he continued to help me with advice. My combine had sat for about 7-8 years, so not only was the pump not working, no diesel to the injectors on the engine. I had a problem with the damper slipping about 80 degrees. So timing the injector pump to the damper markings was not working. He explained the drop valve method for determining TDC, which I did and remarked the damper. Then retimed the injector pump to the new markings.

It started within five seconds.

I can't be anymore happier with Dieseltech's help and advice.

I would recommend him highly if you are having pump problems and would take a good - hard look at the rebuild procedure, special tools and experience needed if you are thinking of doing it yourself. The old saying of "can't break something that is already broken", could end up costing more in the long-run, or if you have an older pump, parts may not be available.

Many thanks Dieseltech!!!

Now, you might as well replace the failed damper, before the crankshaft breaks!

If it has/is slipping it is not doing it's job.

Yep, Bob you're right. My brother's M2 had an overheat issue and it was the dampener slipping. $1200 for a new Agco one, $300-425 for "useable" ones that were cracked and oil soaked and probably wouldn't last a year. Had a guy in I think Washington state that rebuilt it with a lifetime warranty and next day aired it back after 2 days for around $300. Did a beautiful job on it, looks better than a $1200 Agco one. Too bad the gentleman told my brother he doesn't have much work. If I could remember his name I'd give him a plug on here.

Ross

Thanks for the info, for $1200, I will send it to the bone yard.

Anyone out there have a damper for an M2 at a reasonable price?