- Thread starter
- #1,281
No worries mike. Like I said new carb should do it and I think 320 miles and altiitude are the reason for your frequent experiences. I had a few backfires in 2.5 years not 8 in 4 days.
40 series general tech and classifieds
- Thread starter SHUSH
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
Sorry but I doubt it. Hot Springs is only about 590' elevation... Not nearly enough to start to give carb problems. The air is hardly "thin" in HS
- Thread starter
- #1,284
. No worries on making mew feel/look dumb cause I do it all the timeSays the guy that doesn't have the worries.....
Glad we can give y'all a laugh.
I'm going to follow Grogan's advice and try and make it work with weber carb. If it doesn't work I'll go aisin ( I love aisins).
I'm going to follow Grogan's advice and try and make it work with weber carb. If it doesn't work I'll go aisin ( I love aisins).
Will you have to do any modifications to make the asian carb work?
FJ60Cam said:
If you mean throw money at the problem, yes.
I have old air filter and other stuff, minus a choke cable, but I am not sure aisins like that.
Yeah, comedy has been scarce since Todd's "What Was I Thinking" thread wound down.
Things could be worse. You could have sent your carb to that guy in Kalifornia...
Yeah, comedy has been scarce since Todd's "What Was I Thinking" thread wound down.
Things could be worse. You could have sent your carb to that guy in Kalifornia...
I think Todd's buy in was a lot cheaper so he can afford a kalifornia carb guy.
I need to get this sorted out quick because I am chomping at bits to build my family cage. I have already ordered an aussie locker and seat belts and I am hoping to have a basic 40 by the 22nd of june.
I'd recommend to send to Jim Chenoweth instead - or Marlin
but really, some old carb guy in your area would also do a good rebuild, quite likely - it's not rocket science, even I have done one
if I didn't know where to turn, I'd contact some independent VW shop . . .
but really, some old carb guy in your area would also do a good rebuild, quite likely - it's not rocket science, even I have done one
if I didn't know where to turn, I'd contact some independent VW shop . . .
Is it a true back fire sound that sound like a fire cracker or more like a high pressure air hose? I think John had those air sounds but I don't remember him complaining of the fire cracker sound.
I remember someone saying Weber carbs like to run lean, so you could try dialing down the fuel regulator some.
I bet that long trip caused many things to happen from oil thinning out and vibrations. The first thing I would do is do an oil change with heavier oil and get a mechanic to give it a tune up. I have very limited mechanical experience as well. I enjoy tinkering, but I know how frustrating it is when you don't know how to fix it.
I remember someone saying Weber carbs like to run lean, so you could try dialing down the fuel regulator some.
I bet that long trip caused many things to happen from oil thinning out and vibrations. The first thing I would do is do an oil change with heavier oil and get a mechanic to give it a tune up. I have very limited mechanical experience as well. I enjoy tinkering, but I know how frustrating it is when you don't know how to fix it.
AndyO78FJ40 said:
If it is lean, wouldn't I want to dial up. Does dial up add more gas or more air?
Is this what we are talking about dialing?
I'd second Claudia's suggestion. JimC usually has a waiting list. Marlin seems to have a faster turnaround.
Weber carbs tend to run rich in my experience. It is true that you can turn down the pressure regulator to held avoid flooding which can be most useful in off road situations.
Backfire can occur in the exhaust which is usually a sign of unspent fuel building up in the exhaust until it fires off sounding much like a gun shot. A backfire through the carb as Mike seemed to describe is usually a sign of a timing or valve problem as the fuel mixture is ignited in the intake system as a result the valves not being closed properly when the plug fires.
Tune it up and check the timing. We can go from there.
Backfire can occur in the exhaust which is usually a sign of unspent fuel building up in the exhaust until it fires off sounding much like a gun shot. A backfire through the carb as Mike seemed to describe is usually a sign of a timing or valve problem as the fuel mixture is ignited in the intake system as a result the valves not being closed properly when the plug fires.
Tune it up and check the timing. We can go from there.
Bodean
Hot Damn
Yep bossman. Mine has run rich for 12 years. Not touching it! Runs great
I ran a Weber 32/36 progressive on one of my old 40's and loved it. Ran rich no mater how I tuned it, got terrible fuel economy, had good power, and I used a fuel pressure regulator to turn the pressure down to the 2 setting when I was wheeling. Did great.
I would rather run a little rich than a little lean. Just no so rich as to have issues with unspent fuel washing the oil film off the cylinder walls and causing other problems...
I would rather run a little rich than a little lean. Just no so rich as to have issues with unspent fuel washing the oil film off the cylinder walls and causing other problems...
This is my exact experience with the 2 Webers I have owned. Also, seems like it is easier to find a local carb guru for a Weber than a Aisin.