Author	[Modern View]
terry kane 08-27-2012 15:03:38 184.8.57.168 Report to Moderator	FLAT HEAD HAS A LEAKING GASKET. ANYWAY TO FIX OTHER THEN GETTEN IT PINED [Reply]   [No Email]
buickanddeere 08-27-2012 17:59:21 216.183.134.149 Report to Moderator	Re: 1952 JOHN DEERE G WITH FLAT HED in reply to terry kane, 08-27-2012 15:03:38   1st don't type in all capitals, it's shouting. You can spend bucks to pin an old head with modest port flow. It may not leak or not leak very much. Old studs maybe stretched as Bubba often felt a torque wrench was not required and tighter is better. Or just purchase a thick wall casting with high flow ports and a small combustion chamber. End of problems.   [Reply]  [No Email]
terry kane 08-29-2012 09:35:16 184.8.50.80 Report to Moderator	Re: 1952 JOHN DEERE G WITH FLAT HEAD in reply to buickanddeere, 08-27-2012 17:59:21   Thanks.dont have the money to buy new head.but someone sait to put a 3/8 bolt in water jacket with lock nut on excaust side.dont no what they mean .going to try new gasket and tighten it tight see how it holds up.   [Reply]  [No Email]
buickanddeere 08-29-2012 21:29:52 216.183.155.152 Report to Moderator	Re: 1952 JOHN DEERE G WITH FLAT HEAD in reply to terry kane, 08-29-2012 09:35:16   Use a torque wrench, new grade 8 nuts and hardened washers. Check the timing and air-fuel mixture? 87 octane in a high compression engine will cause detonation which is high pressure shock waves. Use 94 octane pump gas or 100LL. Too much spark advance will cause detonation. A stuck distributer advance can cause detonation. Too lean of a air-fuel mixture will cause detonation. There comes a point when the old thin wall flat just can't hold the extra pressure. Maybe better off with the old head and a set of gasoline pistons.   [Reply]  [No Email]