Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

still shooting fire


brockway

Recommended Posts

Hey guys I put new rings in a 23d and when I ran it today it was blowing fire! I know I had seen a topic about valves getting off on size but I can not find it. I think the exhaust valve is not closing so fuel is going out and catching on fire. Any thoughts?
Link to comment
Share on other sites

Bob the flame is about a foot. It scared the day lights out of me glad I rolled it out of the garage before I started it up. I ran it down the down the street and back about a city block and when I let it just run in the yard is when it started to shoot fire like a flame thrower. It acted like it was loaded up and that's when she started.
Link to comment
Share on other sites

When you took the engine apart to replace the rings, did you remove the crank and/or the cam? If so, you may have the gears out of time by a tooth or two. Tom(PK)
Link to comment
Share on other sites

I did not mess with the cam or crank. I thought some one said that the valves will stretch when they heat up is that true or not? Is there a way to adjust the valves?
Link to comment
Share on other sites

You need to check the valve lash. There is no adjustment on the B/S. The way you add lash is to put a flat file between the end of the valve and the follower and file them just two or three strokes. Make sure the valve is closed and not being lifted any at all. Check and repeat till you get sufficient lash. By the way, insufficient lash makes the engine run lean, not rich.
Link to comment
Share on other sites

Check the valve lash first. If the lash is proper, the timing cam is off by a tooth or two, producing a premature/delayed fire which shoots out the valve.
Link to comment
Share on other sites

quote:
Originally posted by powerking_one
What does this mean: >Do you have a power problem?< Tom (PK)
If he has plenty of power, he doesn't have a cronic valve problem. I also forgot to ask if the muffler is insatlled or running a straight pipe.
Link to comment
Share on other sites

It has no real power loss and I have a muffler on it. How would I check if the timing is off? The only thing I can notice is it feels like it is loading up.
Link to comment
Share on other sites

quote:
Originally posted by brockway
It has no real power loss and I have a muffler on it. How would I check if the timing is off? The only thing I can notice is it feels like it is loading up.
If power is not a problem, I doubt if you have a timing issue, besides engine has to really come a part to check that out. Now you say it feels like engine is loading up. Have you turned in high speed jet to correct the loading "up" as you put it?
Link to comment
Share on other sites

Thanks for all the help Bob. I started with 1 and a half and ended up at 1 before it sounded right. Then it would back fire after a little while and then it would blow fire.
Link to comment
Share on other sites

Does it run low speed other than the blow-fire speed? When I had a exhaust valve issue it would do that but then it wouldn't idle.
Link to comment
Share on other sites

It idles for a while than when it warms up she don't idle. I wish I could have got this one right I am going to be at a show till saturday night. I will try again when I get back and hope to get it straightened out before the Buckley show.
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...