hardknocks

i put new NGK 2910 and adjusted main jet and idle adjust needle. and seems to run great. after all the headache i have had and all the diagnoses ive done. now it finally sounds good. I feel like it needed the new carb. the main jet was always loose in old carb when i pulled the pipe plug out of bowl. yes i have put both pumps in tractor and i seem not to be able to get the cavitation quiet down. i even overfill the hytran. ive even checked the tube in the rearend foe cracks. unless i over looked a crack. i appreciate all comments and suggestions. its always nice to have helpful people. hope it stays running as good as it does now.. randy

Ih 666 running 666 ih misfire try these 2 . i have no clue what im doing on you tube

I'm no good at you tube but i will try to change it. ive got new plugs NGK 2910. that's all they had available. the carburetor is a new OEM Zenith 14996. here is a link hope i did it correctluy https://m.youtube.com/shorts/zpMf1LtkQOY https://m.youtube.com/shorts/z5cbqdW_ZNc

here is a link hope i did it correctluy https://m.youtube.com/shorts/zpMf1LtkQOY https://m.youtube.com/shorts/z5cbqdW_ZNc

i cant get but 4 champion plugs today but they have NGK 2910. whats your thoughts

yes i will take a video shortly. and upload. so use D15Y plugs or AC c87

i have put a new zenith OEM carb on yesterday morning with old plugs. i can buy a new set and try that. what plugs would be best, should i go with a hotter plug?? if so does someone have a P/N

Ive changed positions with plugs and its always #6 defiantly. I cant take it out and pull it hard. once you get going it will barley run. and backfire some but sounds like running on 4 cylinders when i bought the tractor last year i put a brand new muffler on and a new upright pipe from manifold. and have taken the air cleaner out and cleaned everything. even tried running it with intake tube off carb to see if it made a difference. but nothing. I'm thinking i need pull head. ive pretty much tried everything but putting points back in. i hate to do that because i have tried 2 electronic ignitions and runs the same exact way. i run non ethanol gas. never added lead substitute, and i use viscosity 30w low ash

here is picture of spark plugs these where new plugs but have started and ran it numerous times trying to figure out the problem. they are black for sure.. new carb was installed today but never made a difference on run quality

did another compression test #1-142 w oil-165 #2-135 w oil-155 #3-138 W OIL-156 #4-145 W OIL-177 #5-150 W OIL-180 #6-143 W OIL-168

i should have mentioned i sprayed all around the intake manifold for leaks and there was no change yes high idle for 18 degrees. yes firing order is correct. compression never falls when i stop cranking it over. but i did not have throttle open just at idle postion i can do another compression test and post pictures of plugs. i can put each plug on wire and ground it out and they all fire

HI ALL got trouble with a real good miss on my 666. when i bought the tractor about 2 years ago. I put in pertronix electronic ignition, there Coil they recommended and new plug wires they recommended. new cap and rotor, Had a bad intake gasket so replaced it and sent carb off and had it rebuilt. after i got it all back together it ran descent but not perfect. ,didnt backfire Just didn't run correctly. but i used it and ran well enough wasn't a concern. now this year it will hardly run. I have checked timing and its at 18degrees. put new plugs in. even put new electronic ignition on it again. still runs terrible. cant drive it. I took a compression test. removed all spark plugs. checked every cylinder #1 145, #2 136, #3 140, #4 148, #5 150, #6 145. and they all hold compression on gauge. i wouldn't think a bad valve. so i remove all plug wires and just lay them on plugs. start engine and pull each wire from plug and they all have great spark to each plug, but #6 does not affect the engine when removing wire and also #2 makes a little difference but very little.. i have even put a new OEM zenith Carb on it. so now I'm stumped on why it is misfiring. i feel like compression is good enough to run. hopefully somebody has a idea for me to try.. it does black smoke some and im figuring its from #6 cylinder thanks

what about the FARM TUFF® Elevator Sump Rebuild Kit for Case IH® Combine, 73399582R. that any count

so far its been great. no cooling issues at all and been pulling a 25' 496. i believe its the smartest move