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Hey guys I've been working on the stock 230 tring to make it run, I've set the dwell, gapped the plugs, dielectric the connections, cleaned flue lines and filters. Starts on the first hit, sputters for a couple minutes and dies, cant give and throttle during sputtering. Also noticed gas leaking from the bottom butterfly housing... possible problem??
Thanks
Sounds like your carb needs a good cleaning and the float is sticking open.
Agree, a carb clean/rebuild, cheap and simple.
Thanks, that's where I was headed too. Took it off last night and the throat and choak flap looked like the inside of a chimney, found one soggy and half split gasket under the valve body. Was wondering, when I got this it had a fuel pump with 30 psi@80 gallon flow there was a regulator but who knows. Question though is could the fuel pressure have damaged the carb?
I am no expert but I think that 30 PSI is way too high for this carburetor. Isn't it usually less than 10 PSI?
I just checked the online manual (Link at the top of this page, TM 9-2320-244-34 Direct Support and General Support Maintenance Manual) and here is what it says: "Pressure should be 3-1/2 to 5-1/2 psi at 600 rpm"
30 psi is almost getting to fuel injection levels. Probably 3 times too high. Can you turn that fuel pump off? I've seen a lot of four wheelers that used both the stock fuel pump and an auxiliary pump to help out on really steep inclines. Quite a few of my friends with old CJs would run them but I don't think any of them were close to that kind of pressure.
Fuel pressure should be 4-6 psi. Any more than that will flood the carb. You could regulate it down.
If you still have the stock fuel pump it can be rebuilt. http://www.then-now-auto.com
Anything over 7 psi is too high for any carb. They used to make fuel pressure regulators you could put on between the carb and fuel pump if you had an electric fuel pump that had too high of pressure.
Correct....7 psi is the max carbs take before you start blowing the needle off the seat.
Replaced the fuel pump with a 3-6psi, no better. soaked the carb for 2 days to get it clean, wired all the holes, put it back on... same thing, but it starts faster sputters a little longer. Throttle kills it, idel mixture screw at sweet spot, longest idle. Adjusted dis. ended back where it was.
Any ideas???
Thanks
Mine was doing the same thing when I had the plug wires installed wrong. I reinstalled them correctly (153642, IIRC) starting at #1 with the crankshaft properly positioned, and it started right up.
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Remember, plug wires on these go counter clockwise...
Verified TDC, all wires in order (counter clockwise).
Was wondering, when I bought the truck the muffler was ruptured the seller knew nada, what kind of motor damage can it cause. Removed valve cover, everything moves... thinking it needs a compression check.
???????
Checking compression is a good idea...does it crank evenly? If there is a cylinder that is really off the others, you can usually hear that when it cranks...instead of all of them sounding the same, when the cranking gets to the low compression cylinder, the cranking will speed up for a second...the sound will change on that one every rotation...
The muffler being ruptured wouldnt in itself hurt the motor, depends how it got that way......it is possible to do that by turning the on/off switch off while the truck is running....wait a few seconds (with no ignition to burn fuel) then turn it back on...especially if you are driving at speed...I saw it done...not pretty...
That ruptured muffler could be attributed to a back fire.
Or in my case, CAUSED by backfire. I was known to have done that when I was in the army (especially in tunnels). But I digress; sorry :DQuote:
Originally Posted by Nailhead
Caused by, attributed to-- pretty much the same.Quote:
Originally Posted by Don Cavey
I didn't peg you for a miscreant, Don...:eek:
I taught many friends how to backfire the engine. Until the catalytic converters came out. That was the end of that! I did mange to split a few mufflers down the seam. Always played dumb and never got in trouble for it (except when I split the muffler on my 1969 Dodge Dart. Had to fix it at my expense.)Quote:
Originally Posted by Nailhead
:laugh:Quote:
Originally Posted by Don Cavey
Couldn't very well hide it from yourself, could you, Don?
That's a riot!
In my younger years, the backfire in the country would usually send horses running when they were in a field (never with people riding them). And I found out that dogs would squat and cats would jump straight up in the air and run.Quote:
Originally Posted by Nailhead
I guess I was as bad as the kids today doing the "Train Horn Prank". Believe it or not, I have grown out of that (and don't want to pay for fixing the muffler!!!)
You can believe that I have NEVER backfired my present M-715. Mufflers are expensive and scarce.
One of the cars I learned to drive in-- my grandfather's '77 Subaru Wagon-- eventually ended up at my uncle's place on Block Island, RI, running badly.Quote:
Originally Posted by Don Cavey
One day, I took it on a milk (or beer) run into town, through the tourist throngs. As I shifted from first to second, it backfired like a pistol shot. Loud. I happened to glance at the door to an antique shop as that backfire hit, noticing someone carrying a large china bowl. Arms went up in the air in terror, with predictable results.
I felt badly, but I was 18 & didn't see what I could do about it. I kept going.
Somehow, I think that we were cut from the same cloth. My dear Dad (rest his soul) thought this stuff was funny. But I never subjected him to our shenanigans even though I am sure he would be chuckling. He and his brothers were characters, but never got in trouble. I guess they knew "where the line was".Quote:
Originally Posted by Nailhead
I only wish he were still around so that I could take him flying (I did one time) and take him in my M-715.