Kama TS354C Engine Running Rough

zogman · Jun 2, 2006

When I first crank it up the engine runs fine but after running and working the tractor for a while the oil pressure seems to drop and it runs as if a cylinder is missing or not getting the right fuel spray. No white smoke or unusually heavy smoke. I can get the engine to the 2400rpm mark early in the engine run but after it warms up I cant get it into the green 540 pto mark (approx 2200prm)I have had fuel problems before (rust in the tank) but I cleaned it out really well... any ideas?
Couple more things, the oil pressure drops but is still in the green and it is getting into the higher water temp ranges.

zogman · Jun 2, 2006

When I first crank it up the engine runs fine but after running and working the tractor for a while the oil pressure seems to drop and it runs as if a cylinder is missing or not getting the right fuel spray. No white smoke or unusually heavy smoke. I can get the engine to the 2400rpm mark early in the engine run but after it warms up I cant get it into the green 540 pto mark (approx 2200prm)I have had fuel problems before (rust in the tank) but I cleaned it out really well... any ideas?
Couple more things, the oil pressure drops but is still in the green and it is getting into the higher water temp ranges.

RonMar · Jun 2, 2006

What engine oil are you using? What exactly did you clean on the fuel system when you had problems before? If it is running warm, how's the cooling system(air passages in radiator clean, full of fluid, pressure cap operating correctly ect)?

RonMar · Jun 2, 2006

What engine oil are you using? What exactly did you clean on the fuel system when you had problems before? If it is running warm, how's the cooling system(air passages in radiator clean, full of fluid, pressure cap operating correctly ect)?

3RRL · Jun 3, 2006

Zog,
How many hours do you have on your tractor now? I know you've been doing a lot fo work with it....
Have you done your valve lash adjsutment yet? I had a similar symptom on my 554 where I could not make rated rpm and an obvious loss of power at higher rpm. I decided to adjust the valve lash and found that 3 of the valves were out of spec...one by a lot. I adjusted each intake and exhaust valve to the middle of the tolerance suggested in the manual. I instantly realized more rpm (past pto rated) and way more power. Oil pressure was constant and water temp remained steady at 80/82° all day in near 100° heat. I don't know if this may be your problem or a part of it, but check it out.

I posted the proceedure on this board under Adjusting Valve Lash

There are posts about your engine as well.

3RRL · Jun 3, 2006

Zog,
How many hours do you have on your tractor now? I know you've been doing a lot fo work with it....
Have you done your valve lash adjsutment yet? I had a similar symptom on my 554 where I could not make rated rpm and an obvious loss of power at higher rpm. I decided to adjust the valve lash and found that 3 of the valves were out of spec...one by a lot. I adjusted each intake and exhaust valve to the middle of the tolerance suggested in the manual. I instantly realized more rpm (past pto rated) and way more power. Oil pressure was constant and water temp remained steady at 80/82° all day in near 100° heat. I don't know if this may be your problem or a part of it, but check it out.

I posted the proceedure on this board under Adjusting Valve Lash

There are posts about your engine as well.

schmalts · Jun 3, 2006

3RR, That forum you posted is a joke. I put a few imformative posts on there and that moron moderator "thingy"
put a snotty response to every one saying i was just an internet mechanic... Guess he takes offense of any advice from someone who actually builds and designs engines for a living. The last post i asked what his credentials were, and if he ever even timed in a camshaft on an engine before because if he did he wouldnt make smart comments to my posts, and why anyone would have made someone like him a moderator, basicly giving him the same responses he gave me and he banned me... funny stuff. I guess he just wants comments there from guys who "i did this one time" kind of guys.

schmalts · Jun 3, 2006

3RR, That forum you posted is a joke. I put a few imformative posts on there and that moron moderator "thingy"
put a snotty response to every one saying i was just an internet mechanic... Guess he takes offense of any advice from someone who actually builds and designs engines for a living. The last post i asked what his credentials were, and if he ever even timed in a camshaft on an engine before because if he did he wouldnt make smart comments to my posts, and why anyone would have made someone like him a moderator, basicly giving him the same responses he gave me and he banned me... funny stuff. I guess he just wants comments there from guys who "i did this one time" kind of guys.

tat2z1969 · Jun 4, 2006

( 3RR, That forum you posted is a joke. I put a few imformative posts on there and that moron moderator "thingy"
put a snotty response to every one saying i was just an internet mechanic... Guess he takes offense of any advice from someone who actually builds and designs engines for a living. The last post i asked what his credentials were, and if he ever even timed in a camshaft on an engine before because if he did he wouldnt make smart comments to my posts, and why anyone would have made someone like him a moderator, basicly giving him the same responses he gave me and he banned me... funny stuff. I guess he just wants comments there from guys who "i did this one time" kind of guys. )

ha ha, not laughing at you Schmalts, I got the axe also and not by Thingy. Seems they don't like when you post the correct way to adjust valves on the true base circle of the cam and post the link to Comp Cams company backing up what one posts. Guess thats like taking a dump in someones mess kit. Guess its best to steer away,well us internet mechanic's who do it for a living anyway. Engine designers and the owner of a Diesel service company just do not have what it takes to sit under the shade of that tree.LOL

tat2z1969 · Jun 4, 2006

( 3RR, That forum you posted is a joke. I put a few imformative posts on there and that moron moderator "thingy"
put a snotty response to every one saying i was just an internet mechanic... Guess he takes offense of any advice from someone who actually builds and designs engines for a living. The last post i asked what his credentials were, and if he ever even timed in a camshaft on an engine before because if he did he wouldnt make smart comments to my posts, and why anyone would have made someone like him a moderator, basicly giving him the same responses he gave me and he banned me... funny stuff. I guess he just wants comments there from guys who "i did this one time" kind of guys. )

ha ha, not laughing at you Schmalts, I got the axe also and not by Thingy. Seems they don't like when you post the correct way to adjust valves on the true base circle of the cam and post the link to Comp Cams company backing up what one posts. Guess thats like taking a dump in someones mess kit. Guess its best to steer away,well us internet mechanic's who do it for a living anyway. Engine designers and the owner of a Diesel service company just do not have what it takes to sit under the shade of that tree.LOL