Hey Tractor Vet

I don't know if you saw my earlier post, but I was hoping you could listen to my SMD Flutter video and tell me what you hear? I think it has an abnormal flutter unloaded and mostly in the mid to upper RPM range.

http://www.youtube.com/watch?v=P3S3uhHSEJ0

In this video you can head what I am talking about about half way through when I up the RPM. Also, at roughly the 10 second and 45 second marks, I load the hydraulics for a few seconds.

Since this video, I pulled the injectors lines and ran the lines into 4 seperate containers and ran the engine on gas for a few minutes. I collected 316cc, 310cc, 310cc and 320 cc respectively. I believe this range is in spec for variance between cylinders. One thing I recently thought about was if my 450 open face injectors might not be set correctly for my SMD pump. They pop at 850, 900, 850 and 850.

Appreciate any help,
Dan

No i did not , It has been years since i worked on any of them . But i had that with my first tractor a Farmall 450 D and we played the game of switching parts from my tractor to my buddy's 450 and up untill we switched the pump we found nothing . When i first started the hunting the problem i had one of this area's best I H man come out and listen to it and he told me OH YOU HAVE a cracked head. Well we pulled the head and found a BRAND NEW HEAD under the oil and dirt . Had it magnafluxed and nothing had it pressure tested hot and nothing had it x rayed and found no cracks. Had all the valves ground and put it back together and still had the miss . That is when we started swapping parts. and found it was the pump . Took it to one pump shop and they tryed to hose me with a huge price to fix it like 700 bucks back in 68 , as they told me that the plunger was bad and it would take twoo weeks to get one. Nope i ain't going to pay that and i ain't waiting. Took it to and Industrial equipment dealer that sold the BIG stuff and there old grouchy pump man fixed mine in four hours for 112.78 . It did not need a plunger all it needed were the cam bushing and a couple seals. Now with out going back and looking for your old post this is my guess and with out going out to the truck and digging out my old books i can not remember the spec.'s on the cracking pressures on the old injectors off hand . PLus i have my boots off and it is PLUM COLD OUT THERE and i ain't ah going back out as i am still trying to warm up from hand picking off the end rows on the one corn field to day and i froze my donkey off . Now i do not know where you took your pump to have it worked on but the guy that does my pump work is and old I H mechanic and knows the I H pumps including the R D pumps . Harry is just north of New castle Pa on Mitchell rd. IF ya want his Ph. # let me know and i will give it to you.

Sure, I'll take his number.

Thanks,
Dan

Frankly, I've watched that video 3 times now and I can't hear this "flutter" you're talking about. The engine sounds great to me, and the tractor ain't bad either...

724-658-4690 Harry Sr.