Author	[Modern View]
flying belgian 02-16-2013 17:26:43 98.132.233.146 Report to Moderator	Yep. It is just the nature of the beast. My 560 gas was like that and my 706 gas was like that. You can adjust the carb as others have suggested until you are blue in the face and you will never get rid of it. Neighbors 1650 gas did the same thing. I have noticed it only happens to 6 cylinder tractors, not 4 cylinder. I don't know how to explain that. [Reply]   [No Email]
Bob Bancroft 02-16-2013 17:31:52 97.73.64.151 Report to Moderator	Re: Tractor stalls only when sudden load is applied? in reply to flying belgian, 02-16-2013 17:26:43   I'm going to guess that a six is enough bigger, and acclerates enough faster, that they all should have acclerator pumps on them. I was going to say the same thing, but have little experience with six cyl. gas engines in tractors.   [Reply]  [No Email]
rrlund 02-16-2013 17:38:58 207.241.137.116 Report to Moderator	Re: Tractor stalls only when sudden load is applied? in reply to Bob Bancroft, 02-16-2013 17:31:52   The 1550s don't have an accelerator pump. They're the old Marvel carb. Does it idle OK? For some reason I always have to keep mine choked a little. The 1600 is the same way. Is yours better after it warms up some? I had trouble with mine idling rough and it was sucking air where the intake manifold bolts to the exhaust. You might check for leaks there and for intake leaks where the manifold mounts up to the head.   [Reply]  [No Email]
Jerry/MT 02-16-2013 20:40:57 206.183.116.145 Report to Moderator	Re: Tractor stalls only when sudden load is applied? in reply to rrlund, 02-16-2013 17:38:58   If it has a Marvel-Schebler carb it has an acceleration well that supplies extra fuel when the throtle is opened up quickly. Either your float level is low, OR the carb is adjusted too lean, OR you have an air leak around the carb metering system. I"d try turning up the mixture first to see if that helps.acceleration.If it doesn"t, check for an air lleakaround th throttle shaft, the carb to manifold interface, or the manifold to cylinder head/block. Look for rust holes or cracks in the manifold itself. Spraying starting fluid (Carefully because it"s very flamable) around these areas will cause the engine to speed up when you hit the leaky areas. You"ll also need to check the timing and the advance for functioning as well as the spark(Fat and bluish-white).   [Reply]  [No Email]
rrlund 02-17-2013 05:23:28 207.241.137.116 Report to Moderator	Re: Tractor stalls only when sudden load is applied? in reply to Jerry/MT, 02-16-2013 20:40:57   Instead of starting fluid,I put a hose on a small propane torch,then don't light it,just turn on the propane. Move the hose around and it will rev up if the leak sucks it in.   [Reply]  [No Email]