Author	[Modern View]
BigDanT 02-01-2013 12:34:39 96.60.16.101 Report to Moderator	Thanks for the replies...dizzy has new bushings and new points,cap,rotor,I even tried a dizzy from one of my real good running 8ns...nada. Valves are raising and lowering in #4. stems seem to be running true and making good contact with tappets,correct clearance.Could I still get good compression with a burnt valve that I missed during cleanup? Tried propane torch trick on manifold no difference...3 and 4 share the same intake 3 seems to be fine. Layed plug attached to wire while running on head...had constant spark,tried different plug and wire anyway...nothing....Keep em coming!!! [Reply]   [No Email]
old 02-01-2013 13:51:34 209.86.226.57 Report to Moderator	Re: update on 2n with scary noise in reply to BigDanT, 02-01-2013 12:34:39   Do you know for a fact that the valves are working in that cylinder?? You can have compression but also have one valve that does not open and if so it could be why it is not running on that cylinder [Reply]  [No Email]
BigDanT 02-01-2013 14:20:23 96.60.16.101 Report to Moderator	Re: update on 2n with scary noise in reply to old, 02-01-2013 13:51:34   With engine running,valve covers off,I can see the tappets rising with the cam lobes,making contact with the bottom of valve stem and raising the valves. I can also see the valves rising when veiwed through plug hole and hand cranking the engine.I'm leaning towards this being a valve issue but just don't know how I get 95lbs, compression if the valves are bad. [Reply]  [No Email]
old 02-01-2013 14:56:13 209.86.226.27 Report to Moderator	Re: update on 2n with scary noise in reply to BigDanT, 02-01-2013 14:20:23   Get the #4 cylinder on a compression stroke both valves closed then fill that cylinder with ATF. Watch for ATF to leak out the carb or the exhaust. If it does then you know which valve it is that might be the problem. If it is a valve problem that is. Could also be the intake or exhaust port clogged in the block [Reply]  [No Email]
JMOR 02-01-2013 15:11:45 72.181.173.171 Report to Moderator	Re: update on 2n with scary noise in reply to old, 02-01-2013 14:56:13   Quoting Removed, click Modern View to seeDid Dan check tappet clearance on #4 or just #3? If ex too tight & not completely closing, that could dilute mixture enough to not fire. [Reply]  [No Email]
BigDanT 02-01-2013 15:52:26 96.60.16.101 Report to Moderator	Re: update on 2n with scary noise in reply to JMOR, 02-01-2013 15:11:45   Jmor...yeah that was one of the first things I checked after start up...all tappet clearance checked good. Going to try Old's suggestion with ATF,maybe one just ain't seating right??? Also going to try pressure testing radiator..thinking maybe an internal head gasket leak,no signs of it though???Thanks Dan [Reply]  [No Email]
old 02-01-2013 15:45:51 209.86.226.27 Report to Moderator	Re: update on 2n with scary noise in reply to JMOR, 02-01-2013 15:11:45   Not sure if he did or did not but filling the cylinder with ATF would tell him if it was a valve problem and yes I agree with you just another way to find a valve that does not close all the way [Reply]  [No Email]
tracman 02-01-2013 14:40:23 142.52.81.12 Report to Moderator	Re: update on 2n with scary noise in reply to BigDanT, 02-01-2013 14:20:23   Go back to Pogun's idea and feel for compression and or vacuum that will tell you if you have enough to get some power out of that cyclinder. Then it is back to spark issues. Could you have enough carbon around the valves to prevent fuel from entering and or exhaust from leaving?? A wet plug will indicate fuel entering but if your exhaust aint leaving you have a nogo. [Reply]  [No Email]
POPGUN 02-01-2013 13:46:26 64.187.79.169 Report to Moderator	Re: update on 2n with scary noise in reply to BigDanT, 02-01-2013 12:34:39   If this is a repeat disreguard. Remove #4 plug, ignition OFF, tranny out of gear.Crank with finger or thumb in spark plug hole #4. Now ya know ya have compression but what do ya feel on intake stroke? Restriction,leak or plugged intake? Is there gas getting into #4 cylinder? Might put some gas in #4 hole and see if it fires. Good luck and let us know. [Reply]  [No Email]
Bill Rowles 02-01-2013 12:51:22 76.2.232.2 Report to Moderator	Re: update on 2n with scary noise in reply to BigDanT, 02-01-2013 12:34:39   You did not say whether you checked to be sure #3 and#4 plug wires were not switched. Firing order is 1-2-4-3 .....I think I would try switching plug wires 3 and 4 and be sure you have good plugs in each cylinder.....does the problem disappear or just move to cylinder #3? [Reply]  [No Email]
BigDanT 02-01-2013 13:04:47 96.60.16.101 Report to Moderator	Re: update on 2n with scary noise in reply to Bill Rowles, 02-01-2013 12:51:22   Firing order checked..wires marked with yellow paint pen on both ends (learned my lesson on that one)...tried different plugs and wires from another tractor..still no bang on #4 [Reply]  [No Email]
tracman 02-01-2013 13:43:23 142.52.81.12 Report to Moderator	Re: update on 2n with scary noise in reply to BigDanT, 02-01-2013 13:04:47   Quoting Removed, click Modern View to see Double check the for a healthy spark on No.4 with a spare plug gapped at the 1/4" gap. If that is ok the problem still could be the plug in the engine. Pull it out and see it if is wet. If it is wet it is not firing for sure. Still check your firing order again you may have missed something. I know I have from time to time. [Reply]  [No Email]