Jim83Itasca
La Quinta Calif
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Joined: 09/16/2003
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It's called a lean stumble......It could be caused by worn linkage, Bad or worn squirter, Idle set to low and again your idle/air screws might be turned in a dab to far......
I don't believe you have ever spelled out the/your carb model which would help.
Jim
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RealtyRoy
NW Oregon
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Joined: 08/09/2006
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The shop may have adjusted it so it would pass and some times for me after I get it to pass I bring it back to the shop and re-adjust so it runs good again. If they had that carb a part they may have created a problem with the accelerator pump.
I would just take it back to them and have them fix it.
Good Luck!
Roy
May the roads and skies always be clear, and the firewood nice and dry!!
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VDOCAD
Arcadia, CA
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Joined: 04/07/2006
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Jim83Itasca wrote:
I don't believe you have ever spelled out the/your carb model which would help.
Jim
Sorry... it's a Holley 4180.
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VDOCAD
Arcadia, CA
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RealtyRoy wrote:If they had that carb a part they may have created a problem with the accelerator pump.
I would just take it back to them and have them fix it.
Good Luck!
Roy
They basically sent it somewhere to be rebuilt. The linkage used to work just fine until yesterday... One thing I did notice when I started it this morning, it did not run fast as it usually does for about 2 or 3 mins until it slowly goes to its normal idle speed(the mechanics did ask me that as well when I took it in today). Also, when I put it in gear and pressed the gas it almost died on me several times. I had to press the gas pedal very slowly. After it got hot things got much better but never worked completely fine.
We'll see, I hope they know what they are doing... I so hate this thing, fix one problem and create another...
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smkettner
Southern California
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Joined: 03/21/2005
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Sounds like the choke is not set properly either. There is a specification to do it right. Sounds like sloppy work. This is why manufacturures went to electronically controlled fuel injection systems. Even in the day of carburators few really understood the full workings and would make incorrect adjustments to compensate for what they do not understand.
Usually the first thing a mechanic would do is richen the idle mixture screws. This partly would solve your choke misadjustment and the accelerator pump not working properly. Unfortunately then it does not pass smog. So at some point (mid 70s?) the idle mixture screws were sealed/covered. And they added cat converters to mask the poorly tuned engines. And people wonder why these cars from 1975 to 1982 ran soo poorly. I saw many cars from the 1960s that when properly tuned would easily pass smog specs for the newer cars with cat converters.
* This post was
edited 03/21/08 11:32am by smkettner *
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VDOCAD
Arcadia, CA
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Yes, that was my second mistake when I purchased this MH. I should have known that carbs could be nothing but problems if you do not know what you are doing. On the other hand, I own a 1990 Toyota Tercel, that has never had an issue with its carburetor...
I should hear from them today.
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timmac
Las Vegas
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Joined: 03/20/2006
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VDOCAD wrote >>> Yes, that was my second mistake when I purchased this MH. I should have known that carbs could be nothing but problems if you do not know what you are doing. On the other hand, I own a 1990 Toyota Tercel, that has never had an issue with its carburetor...
Are you sure that 1990 Toyota has a carb, it might be fuel injected and that's why you have had few problems or any at all in that area.
If you only understood how to repair and tune that carb now on your RV you could save up $1000.00 and buy a Holley TBI and install it your self and bagged those carb bluuueeesssss, Its not that hard and it will make your motor burn cleaner and run better longer....
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MasterBoondocker
nw lower Meeeechigan, TN and FL
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Joined: 10/11/2003
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timmac wrote:
If you only understood how to repair and tune that carb now on your RV you could save up $1000.00 and buy a Holley TBI and install it your self and bagged those carb bluuueeesssss, Its not that hard and it will make your motor burn cleaner and run better longer....
Carb blues ? ..... NOT if you know yourself or PICK someone that can fix that carb correctly.
That TBI is NOT what you want for fuel-injection. Buy a multi-port FI if you are thinking in that direction.
BUTTTTT ....with a good spread-bore carb ... you can achieve almost the same good fuel atomization that is needed for better fuel econ.
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VDOCAD
Arcadia, CA
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timmac wrote:VDOCAD wrote >>>
Are you sure that 1990 Toyota has a carb, it might be fuel injected and that's why you have had few problems or any at all in that area.
Yes it is carbed for sure.
I have thought about that conversion kit and maybe it will materialize some day. Right now $$ is tight(I was lucky enough the Boss allowed me to get the Champion Generator last week... she realized it was a deal that only comes around once every 10 yrs!).
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VDOCAD
Arcadia, CA
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I am home now and the MH is running like it used to; just fine. According to the mechanic he had to enrich the mixture again and that probably it wouldn't pass smog now!!! Is this some kind of game or something? Is there not a happy medium?
So most of you were right about adjusting the carb so it passes and then going back and re-adjust it so it runs good. I still do not get it.
Thanks to all for your time and ideas. I learned a lot.
Rodrigo
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