Author	[Modern View]
JCinKY 08-01-2012 16:21:26 166.147.120.17 Report to Moderator	I recently picked up 50(?), front mount,6V 8N for cheap. It needed a steering box rebuild and other odds and ends but started and drove, we named it lefty since it would only turn right. Gott'im turning and mowing no problem with my 6ft king kutter, but had dangerously low oil pressure, about 3lbs hot at 3/4 throttle. I tried up to 20w-50, stretching press relief spring with no luck. So into the motor I went... Had significant wear on rod and main bearings (water and oil don't mix), broken valve spring, rings shot so I started in on some rebuild lite. I want a hard working tractor that doesn't look bad either. I replaced rods and mains, rings, valve job adjusted per I&T, all gaskets, oil pump rebuild, cam gear, points, plugs, cap, the usual...and now ol' lefty will barely hit a lick. I have fuel and spark, but plugs are dry. Have not done comp test but I'm spitting gas out of the carb throat. It will try to hit on a cylinder or two but not much else. Someone tell me what I missed. [Reply]   [No Email]
JCinKY 08-03-2012 12:56:06 209.149.164.220 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Dell...When I first lost OP I tried 15-40 then 20-50 and had worse luck. I think I read on here that 50 may be too thick to be picked up (???) Anyway, I will put atleast 40w in it today. My crank is at the end of its rope; .010 on the rods but .040 on the mains and budget did not allow a new crank. By polishing all I did was knock the rust off of the journals. Platiguage was on the high end even a few thou over so I don't expect 40 lbs, but would be satisfied with a hot 10. -Jeff   [Reply]  [No Email]
JCinKY 08-02-2012 20:24:23 166.147.120.147 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Thanks Dell. I'm running straight 30w detergent. Since I didn't have any machine work done or swap sleeves, just polished crank and cam, I'm glad it's even moving the needle. It barely came off 0 before. I'm going to put a few hours on it, at least get the 5 ac mowed, and change to a heavier weight. I'd have to say my first rebuild went pretty well overall. I couldn't have done it without YT. My phone is constantly soaked in oil and scratched since we ain't got that new internet way out here yet. Thanks for all the help, I'll need it again in sure.[/list]   [Reply]  [No Email]
Dell (WA) 08-03-2012 10:02:42 97.113.108.140 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-02-2012 20:24:23   JC........change yer oil NOW!!! 6-qts of 50wt oil to protect yer polished crank journals is CHEAP insurance. BTW, polishing yer crank journals actually open up yer bearing clearances and cause LOWER oil pressure. Remember to re-torque yer head bolts after 1/2-hr of running. .......Dell   [Reply]  [No Email]
JCinKY 08-02-2012 18:57:46 166.147.120.149 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Thanks Paul. I took a torch to em last night and it would hit, but not start guess it was my points. I was burning oil something awful when I tore it down and they were pretty bad.   [Reply]  [No Email]
JCinKY 08-02-2012 18:55:03 166.147.120.149 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   It lives!! Fresh set of plugs and a rebuild of distributor, my points were corroded but cleaned up ok, and a couple shots of ether and it puttered to life. Re-torqued head when hot. Idles realty well but have a slight exhaust leak, nothin' to worry about. I had about 30 lbs of OP at first start but dropped to about 7 at hot idle. Any ideas? Ill put a new gauge on tomorrow. Cylinder pressure was 100 wet on each with no1 at about 105.   [Reply]  [No Email]
Dell (WA) 08-02-2012 19:11:19 97.113.108.140 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-02-2012 18:55:03   JC........with a 20% accurate oil pressure gauge, 30psi cold and 7psi HOT is semi-normal. Remember ALL oil THINS when HOT. Its call the VISCOSITY factor. Indicated low oil pressure is result of oil LEAK thru the bearing clearances. Iff'n it scares you, change to 50wt detergent (racing) oil. But I would NOT run 50wt in the winter time. While in 1939, Ford designed the 9N to run on 30wt detergent, they also recommended 40wt detergent in HOT weather. .......oily Dell   [Reply]  [No Email]
Paul in Edmonton 08-02-2012 08:53:38 128.144.90.64 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   You don't necessarily need new plugs. Just pull them and hit them with a propane torch for a few seconds. This will clean off the fouling deposits. If you're in a hurry, even torching a couple of plugs will be enough to get it started, and when the engine warms up, it should take care of the deposits on the other plugs on its own. I have to do this occasionally--but not nearly so often as I did before I replaced the points... Back then, if it stalled for any reason, I'd have to pull/clean the plugs before I could get it to restart. -Paul   [Reply]  [No Email]
R Geiger 08-02-2012 08:52:54 50.39.138.117 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to rspoynter, 08-01-2012 16:21:26   Quoting Removed, click Modern View to see If fuel is dripping out of the carb when you are cranking, you are probably using the choke to much. Even with no shutoff on temp tank, the float and needle should shut off the fuel flow, if the float height is set right as per FO-4 manual.   [Reply]  [No Email]
JCinKY 08-02-2012 08:08:42 209.149.164.220 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   sounNdguy Hopefully oil in cyl will bring compression up some and i will be going through my distributor again and rewiring another new set of plugs. Any ideas on the carb?   [Reply]  [No Email]
JCinKY 08-02-2012 07:55:09 209.149.164.220 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   souNdguy, i wired my plugs one at a time from front to back on top and to corresponding cap location. I got firing order of 1243   [Reply]  [No Email]
soundguy 08-02-2012 05:17:09 173.105.131.219 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   1-2-4-3- is fire order. oyur earlier posts said 1 front to back.. just making sure you know about the 4/3 swap.   [Reply]  [No Email]
JCinKY 08-01-2012 19:18:29 166.147.120.31 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Royse, I don't have the tank or hood on at this point. I'm running off of a push mower tank about 1/2 gallon. It is definitely getting too much gas. I'll let the bowl fill an put the tank lower than the carb so I don't flow any extra.   [Reply]  [No Email]
JCinKY 08-01-2012 19:14:36 166.147.120.31 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Oh yeah... Forgot to ask earlier. Cam gear only goes on one way, right? Bolt pattern is offset? Reason I ask is I replace fiber gear with alum. Pretty sure PO installed fiber wrong, it had slipped the center hub killing my timing before rebuild. I did not remove crank gear.   [Reply]  [No Email]
Royse 08-01-2012 19:07:51 69.36.49.151 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Turn the gas off at the sediment bowl, don't choke it and start it. Without ether. There should be enough gas in the bowl for it to start. Once it starts, turn the gas on and let it run.   [Reply]  [No Email]
JCinKY 08-01-2012 19:06:21 166.147.120.15 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   I'll check comp tomorrow when I put a little oil in each cylinder. I did not check before rebuild. Cam gear went on with timings marks aligned. And i checked it at TDC, no. 4 in overlap, no. 1 both closed. I did not replace valves or guides but cleaned all with Emory and scotch pad, had plenty of free play. Set valve lash per I&T. Best way to unstick a valve? MMO? ATF?   [Reply]  [No Email]
JCinKY 08-01-2012 18:58:12 166.147.120.16 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Just got back in from the shop. Rebuilt carb again, everything looks good but it's still trickling gas from the carb when it's choked. Actually got it to hit and run for all of 5 seconds. Flooded it and pretty sure i fouled the plugs, I'll get a new set and some ether tomorrow. Positive firing order is correct, new wires went on one at a time no. 1 front to back. I'm going to go through the dist tomorrow if i get time. Any ideas on the carb issue? Man, i gotta mow!! Its been over a month, but still praying for rain. Its been a dry summer.   [Reply]  [No Email]
Den N Ms 08-01-2012 18:52:32 184.41.143.48 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   JCinKY,Check the compression,Plugs Gaped at .025 not .035 but thats not why it won"t start.Are you shure you have the camshaft in proper time with the crankshaft?A cam out of time or intake valves to tight would cause it to spit out the carb.   [Reply]  [No Email]
Royse 08-01-2012 17:58:09 69.36.49.151 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   In addition to what Bruce and Harold have already said, you might want to double check your firing order and clean those brand new plugs in case they've gotten flooded. Gap should be .025 I believe.   [Reply]  [No Email]
JCinKY 08-01-2012 17:05:16 166.147.120.17 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   Yep. Blue white spark on new 437's gapped at .035. Points gapped at .015, but I haven't been into the dist since install. MY 6V battery was weak for sitting for about a month, I tried to jump with 12V with no luck. Neutral, key on, negative to post, and positive to starter. Charging 6v now. Rebuilt carb yesterday with full kit. Tapped on bowl if float stuck, but not sure why gas is still spilling out the carb throat. I'm stumped.   [Reply]  [No Email]
Bruce (VA) 08-01-2012 17:46:05 24.125.80.178 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 17:05:16   Pull the carb off & fix it. Charge the 6v battery, then jump it w/ a 12v as Harold suggested. (see tip # 43) That gets you max current to the ignition system while the 12v spins the starter. Just before you are ready to start it, put a tblspn or so of oil in each cylinder to get the compression up. Have some starting fluid or propane ready to spray in the carb. 50 Tips   [Reply]  [No Email]
HCooke 08-01-2012 16:29:24 70.195.2.102 Report to Moderator	Re: Recent Rebuild - Wont Start in reply to JCinKY, 08-01-2012 16:21:26   "I have fuel and spark" Good snappy blue white spark that will jump a 3/16" gap or weak yellow spark? Front mount points gaped at .015? When I started my recent rebuild, I hooked up a 6 volt battery to the ignition and jumped the starter with 12 volts to spin it faster. Make sure you are in neutral!   [Reply]  [No Email]