Should this be posted under the Two Wheeled section?
Edited by chieffan, April 18, 2015 - 07:21 AM.
Posted April 18, 2015 - 07:20 AM
Edited by chieffan, April 18, 2015 - 07:21 AM.
Posted April 18, 2015 - 08:30 AM
When it doesn't start, check for spark with a spark tester.
The dry plug does not prove the presence of a spark, since the engine does not fire with fuel squirted into the plug hole. ...There may be enough residual heat in the block to evaporate the fuel.
If a valve were hanging open, you should have "popping" out the exhaust or back through the carb. ....If a valve were stuck in the open position, you should have no compression.
Your symptoms mimic the way in which some of the old "horseshoe" magnetos would fail, but a bad condenser is also a possibility. .....Heat soak may be the culprit.
Posted April 18, 2015 - 08:39 AM
When it doesn't start, check for spark with a spark tester.
The dry plug does not prove the presence of a spark, since the engine does not fire with fuel squirted into the plug hole. ...There may be enough residual heat in the block to evaporate the fuel.
If a valve were hanging open, you should have "popping" out the exhaust or back through the carb. ....If a valve were stuck in the open position, you should have no compression.
Your symptoms mimic the way in which some of the old "horseshoe" magnetos would fail, but a bad condenser is also a possibility. .....Heat soak may be the culprit.
Posted April 18, 2015 - 09:19 AM
When it doesn't start, check for spark with a spark tester.
The dry plug does not prove the presence of a spark, since the engine does not fire with fuel squirted into the plug hole. ...There may be enough residual heat in the block to evaporate the fuel.
If a valve were hanging open, you should have "popping" out the exhaust or back through the carb. ....If a valve were stuck in the open position, you should have no compression.
Your symptoms mimic the way in which some of the old "horseshoe" magnetos would fail, but a bad condenser is also a possibility. .....Heat soak may be the culprit.
I totally agree!!!!
Posted April 18, 2015 - 10:41 PM
I'm with Bruce as usual.
The Briggs B's I have messed with always needed a new condenser to run consistently, especially if it had a the diamond stamp on the condenser base.
Ben W.
Posted April 19, 2015 - 06:48 AM
Posted April 19, 2015 - 07:19 AM
Thanks MH81 taking notes smiley. Been doing that all along. This engine has had a full tune up and carb rebuild. New fuel line and filter. If I kill it pulling it will start right up on one pull. I have a good spark tester ordered so will check that first when it gets here. The condenser could have died too. It is in the shed now and will stay there for several days as we just got 3/4" or rain yesterday and thicker than pea soup ( UG) this morning.
Posted April 19, 2015 - 09:51 AM
New fuel line and filter. .
This raises another question and possible problem!
The original set-up used a metal fuel line with a glass filter bowl. ....Did you replace that with the same, or did you use fuel hose with an inline filter?
Posted April 19, 2015 - 03:02 PM
This raises another question and possible problem!
The original set-up used a metal fuel line with a glass filter bowl. ....Did you replace that with the same, or did you use fuel hose with an inline filter?
Now that you mention it I am not sure. I was working on two tractors a Gardener and a David Bradley. Started on the Gardener and while waiting for parts started on the Bradley, then back to the Gardener. It was the Bradley that I put new fuel line and inline filter. The Gardener retained the original bowl and metal line. This is a photo of the unit after it was up and running and the metal can be seen.
I don't think it is a problem of fuel not getting to the carb as it will run over fairly easily if the valve is left turned on and the tractor not running. As long as it is running I have not noticed any fuel run over. Gas is getting to the carb, and it won't start after fuel is squirted into the plug hole. Almost has to be an ignition problem. Guess I need to go back and check the points and replace the condenser again. From past experience a bad condenser will burn up a set of points rather fast in a Briggs engine.
Edited by chieffan, April 19, 2015 - 06:03 PM.
Posted April 19, 2015 - 03:37 PM
Posted April 19, 2015 - 06:05 PM
I get mine at NAPA. they are the torpedo shape with the copper cone inside for the filter. The packaging says it is for Lawnmowers so would guess it is for gravity flow as not many lawnmowers have fuel pumps.
Posted April 20, 2015 - 06:22 PM
I knew it !! Went down to the garden to cover some plants - talking chance of frost this evening. Stopped at the machine shed where I pulled the gardener the other day. Wrapped the rope, turned the gas on, closed the choke, gave it a pull - - nothing. Opened the choke, wrapped the rope and gave it another pull - - - it fired and ran. Had to play with the choke till it warmed up a little. After that it sat there and ran a just above idle for a couple min. Turned the gas off and shorted the plug out to kill it. No why in tarnation don't it start like that after it has ran for 1/2 hour or more ? ? ? ? What is it not getting when it is hot that it is getting when it is cold ? ? ?
Posted April 20, 2015 - 07:06 PM
Sounds like condensor or coil.
Posted April 21, 2015 - 07:49 AM
Posted April 24, 2015 - 08:14 PM
I decided that it was a good time to finish plowing the garden yesterday afternoon. Went to the Machine shed and turned the Gardener toward the door and 2 pulls with the rope and it fired and ran. Warmed it up good and headed to the garden. Run it a just above idle and plowed the rest of the garden and it didn't miss a lick. Pulled real good, I had wheel slippage on both wheels most of the time. Not a lot but enough you knew it was there. About 45 min later I was done, the gardener was back in the shed and plow was greased good. Can finish cleaning up the plow and get it painted, along with the tractor itself. Won't need it again till the crops are high enough I need the clearance over the tractor. Still don't know why it won't start when it has been run a while and allowed to sit for period of time. If it was ignition wouldn't it show up while it was pulling hard ? ?