Carbureuter

Discussion in '1947-1954' started by KentC, Apr 30, 2007.

  1. KentC

    KentC Member

    Joined:
    Feb 24, 2004
    Messages:
    148
    Location:
    Lubbock Area
    My carbureuter sat for 9 months on a shelf as I was waiting on the transmission and engine overhaul, then for me to reinstall. It did not leak before these events. But now, it seems to seep slightly. I wipe it off, but after a drive or sitting overnight, there appears to be a trace of moisture on the outside front. Do I need to buy another kit and replace the gaskets or take it apart then use a tube sealant to reseal the connect spots? Thank you.
    KentC
     
  2. lapace

    lapace Member

    Joined:
    Feb 5, 2007
    Messages:
    62
    Mine does the same thing. I have not found it to be a problem as it is a tiny amout. I would say that if it was dripping down on the header that I would try to do something about it. The float valve may not be seating nice and tight. If this is the case the reservoir may be overflowing. This could cause problems like a back fire through the carb. You defiantly do not want this to happen with an oil bath air cleaner. Take my word for it.:eek:
     
  3. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Carburator Seepage

    If it works O.K. . leave it alone .

    The seepage cannot possibly catch fire from the hot exhaust manifold .

    If it bugs you a lot , drain the carby and remove the air horn , carefully wet both sides of the air horn's paper gasket with fuel resisitant sealant , allow to tack up and re-assemble , do not put any fuel in it for 24 Hrs to affect total curing of the sealant .

    Be aware , you may damage the carby the next time you need to open it up for service after sealing it.....
     
  4. KentC

    KentC Member

    Joined:
    Feb 24, 2004
    Messages:
    148
    Location:
    Lubbock Area
    Carbuerator

    It did backfire when I fired it up for the break-in. But I set the timing and it runs good now. On the flywheel, I set it on the embedded circle, not the triangle, right? It seems to run great on the circle (but I guess it might run super greater if I did it wrong - you know, like dragster fast) .
    KentC
     
  5. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Ignition Timing

    Correct ~ set to Ball On Pointer @ 50-0 RPM's or less .

    The triangle represents TDC and is used to check valve timing etc.
     
  6. KentC

    KentC Member

    Joined:
    Feb 24, 2004
    Messages:
    148
    Location:
    Lubbock Area
    Does a two barrell carb get better gas mileage, and if so, how much estimated? Is there a brand name recommended? Will it fit the intake manifold, as exists, a simple bolt on replacement, or will this (manifold) require replacement too?
    KentC
     
  7. Zig

    Zig Member

    Joined:
    Oct 14, 2006
    Messages:
    4,860
    Location:
    Pittsburg KS
    You can always get a 4 barrel intake from Patrick's!:rolleyes:
     
  8. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Increased Fuel Economy

    No , the carby spigot is waayy too small to add a two BBL carby , you'd need to change the intake manifold .

    As this is a three port cylinder head , you'll get vastly better results from adding a two carby setup (O.K. , triple carbys will give MAX. economy but I don't like 'em) on any of the two carby intake manifolds , I'd think a matched pair of Cart#r model 2600's would do the trick nicely plus the power increase will astound you .

    4 BBL carbys on a long , three port engine like this will inevitably result in end cylinders running too lean whilst the middle ones are way too rich .

    -Nate

     
  9. Zig

    Zig Member

    Joined:
    Oct 14, 2006
    Messages:
    4,860
    Location:
    Pittsburg KS
    Master,
    Triples will give MAX (fuel) economy? What don't you like about them- other than maybe the cost? For some reason MAX fuel economy is kinda' important to me- power, not so much. (That's not to say I want to wheeze my way down the road however...)

    Thanks for the 4 barrel warning~ I wasn't going to use one, but I saw a feller on the liners page put one on. As well as alot of other stuff inside.

    I suppose Kevin could set me straight on installing individual injectors...

    :rolleyes:
     
  10. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Multi Carbys = Economy

    The more efficiently you meter the fuel , the more economical the engine will be . at the same time , tractible power increases too so you've gotta resist putting your foot into it else it'll go too fast and only get 12 MPG , same as stock but much faster ( this is a good thing)

    " Tractible " power is power available at nearly all engine RPM's and loads , makes the driving experiance much better ~ try a C@rter YF2600 and you'll see ~ even with just one , the throttle response is vastly improved .

    Three carbys is best for economy as one carby per intake port is ideal .

    I never did like setting up multi carbys , now that my Tinnitis is REALLY LOUD I can no longer " listen to the hiss " ~ that's how us old guys adjust multi carby setup to perfection ~ I used to set them up to pass the California SMOG test , by ear .

    I hope this answers your question ? by all means , DO THIS ! don't let me tell you " you cannot do this " , take it as a challenge .

    BTW : there's a fuel injection kit for the Jeep InLine 6 Banger engine , it is a multiport typ and would prolly work very well on our Cast iron Wonders....
     
  11. Zig

    Zig Member

    Joined:
    Oct 14, 2006
    Messages:
    4,860
    Location:
    Pittsburg KS
    O Kay ....

    Let's just say that sounds a might interesting- the 3 carby thing. Tune them by EAR? I can't carry a tune! I wouldn't know if it was hiss or p---. I'm sure I'd produce a lively fire show, poppin' and flashin' my way down the road in a rather lurchy motion. All the seniors will be reelin' down the sidewalk thinkin' that they were in the middle of a fire-fight.
    That said-
    COOL!
    Sign me up!:cool:

    Zoom-Zoom;)
     
  12. coilover

    coilover Member

    Joined:
    Mar 30, 2005
    Messages:
    2,564
    Location:
    Plano US
    I think Nate is way off on this one. Our shop truck had a 54 vette engine with the three sidedrafts, the cast iron factory dual pipe header, and some really mellow steelpack mufflers. Everytime the young guys used it the gas mileage was absolutely terrible.
     
  13. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Oh Those Young Pups

    You're right ~ I forgot that young 'uns are always the one who get the maximum milage out of fuel , tires and U-JOINTS ! :D

    ;)

    It's *FRIDAY* (for me anyway) , Bagels and cream cheese is due in any minute , my Diesel is back on the road again , my pain is manageable for the moment , I have a good slate of mixed work and junkyarding lined up for this 4 day weekened ahead , I have " Good Times Roll " R & B playing in the VH1 radio , life is good again .

    Last night I watched a wretched Dean Martin movie : The Ambushers , one of the simply AWFUL ' Matt Helm ' spy adventure movies from the late 1960's....

    I loved it ! .
     
  14. Chiro

    Chiro Member

    Joined:
    Sep 3, 2006
    Messages:
    1,304
    Location:
    A New York Yankee living in Virginia
    So Nate,

    You're saying that a Carter YF2600 carby on the stock 235 single port intake vastly improves the performance of these bolts?

    Also, where can I get a Grose-jet for the rochester. Getting ready to fire up the 235 after it has sat for 4 years and trying to figure out how to carby it the best.

    Andy
     
  15. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Yes ~ the extra $ in the design and construction of the Carter YF really pays off .

    I'd look in Hemmings Motor News for Grose jets , they help too although I don't currently have them .

    MMmmmmm frsh bagles & cream cheese :)
     
  16. Zig

    Zig Member

    Joined:
    Oct 14, 2006
    Messages:
    4,860
    Location:
    Pittsburg KS
    Ohhhh Naaaate...

    Hey Nate- hope you're enjoying your time off! I promise to ditch the sf! You said adjusting the three carbs was the part that was tough- I assume two carbs to adjust is 1/3 easier? If a person went with three, two, or one~ the best carb is a Carter? I won't ask now, but you know I'll be asking about the best way (or THE way) to adjust these. Since you're on vacation of sorts, I won't bother you with that question now.;)
    Enjoy your time off, and I hope you pain will leave you alone so you can get everything done that you want!
    Thanks again for all the info!
     
  17. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Multi-Carby Synching

    You must first disconnect the cabys from each other so any adjustments on the linkages won't affect the next one in line .

    You can use a " Uni-Syn " tool to measure how much air is bing drawn through each carby , or there's a newer better made tool for the same purpose but I forget it's name .

    I'm sure there's a specific procedure but I set them up to all be WFO (vertical throttle plates) when the foot feed is flat on the Toe Board , then set the mixture screws so each carby is drawing the same amount , for me , this used to be done by listening to the ' hissing ' sound eminating from the air horn . you also listen to how well the engne is running , the exhaust note will tell you if it's too lean or too rich as will the smell ~ an elderly Japanese engneer came to L.A. back in 1972 or so when the Gov't. first began caring about Moto exhaust emissions and he told me perhaps the very best carby tuning info I've ever received : I only wish I could typ this in the quaint Japanese accent he used...' Sriff exhaust ~ nosea burn , too rean , eyesa burn , too lich ' .

    (If the exhaust makes your -nose- burn , it's too lean , if the exhaust makes your _eyes_ burn , it's too rich . very simple and direct .

    Anyway , I'm looking back on this and it doesn't look very usefull to me , I'd just fiddle with them untill the engine idled _perfectly_ , as I've said before : it takes practice and I don't like to practice that much . once they're set , leave the damned thngs alone ! contrary to popular belief , munti - carbys DO NOT go out of adjustment ! other things do and the sgns show up in the carbys (popping , flat spots etc.) so folks always touch the carbys first when they're supposed to be dead last in the tune up circle....

    ALWAYS run a seperate fuel filter for each carby and carry spares and change them as soon as you see ANY dirt or water in it and your carby won't need service in 10 years......

    My MGB didn't need any carby fiddles after I'd set them up ~ I even removed them and rebuilt the engine , re-installed and they were _still_ perfect spot on adjustment as I dismounted the entire intake manifold as an assembly...

    You must ensure the valves are all dead nuts on spec , ditto with sparkplug gaps , ignition dwell and timing , _before_ attempting to sych the carbys .

    I hope this helps but I doubt it :(
     
  18. Zig

    Zig Member

    Joined:
    Oct 14, 2006
    Messages:
    4,860
    Location:
    Pittsburg KS
    That's alright Nate~ I get the general idea.

    Is it just one airline ticket, or would you like to bring SWMBO also?
     
  19. vwnate1

    vwnate1 Member

    Joined:
    Jan 1, 2000
    Messages:
    11,677
    Location:
    AMERICA !
    Actually , I'd send my mechanic as he can still hear quite well and he's a Moto mechanic so he gets lots and lots of multi carby practice..... :rolleyes:

    He set the carbys on my Kooky Kommie Ural and it runs -SO- sweetly...
     

Share This Page