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Old 08-28-2019, 05:41 PM   #1
1hc72
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Default carter 800 cfm

i just got a new to me carter 800cfm carb. plugged the vac line on the side of the carb and hooked up the front to full manifold vac. she starts and runs but it sounds like she is at redline, what am i doing wrong? idle screws are all the way in then turned 1/4 turn out
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Old 08-30-2019, 03:38 AM   #2
1975IH200
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Default Re: carter 800 cfm

Some additional information would be useful.

1. Is this "Carter 800 cfm carb" installed on the truck in your signature? 345 engine?

2. Please give details of the "Carter 800 cfm carb". Is this a two-barrel or four-barrel carb? Model number perhaps? Photos of the carb would be helpful too.

3. Do you have a Tach-Dwell meter that you can attach to the coil to provide engine RPM during troubleshooting?

4. Idle mixture screws only affect idle mixture,.....and this is only during engine idle, which is lower than 900 RPM. We need to know your engine speed.

5. I suggest the following:
a. Turning the idle mix screws out two full turns, then
b. Turning the curb idle adjusting screw out 2-3 full turns or until you get the idle down to 675-750 rpm.
c. Report back with engine RPM reading from Tach-Dwell meter.
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Old 08-31-2019, 10:51 PM   #3
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Default Re: carter 800 cfm

yes it is on the truck in my sig.
it is a 4bbl will get a pic tomorrow.
No, i do not have a tach dwell
i will see if i can fine a tach dwell or a tah to give you an actuate RPM

carter carb is a full mech version it has a mec lever for the back 2 bbl, and a plunger lookig thing on the top right not sure what it does. i am unable to fine a model number at this time, i willl try to hunt one down.
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Old 09-01-2019, 07:22 PM   #4
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Default Re: carter 800 cfm

New member here.
Trying to create a new post with a METRO van for sale. Help?
Thanks,
Alan.
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Old 09-02-2019, 12:05 AM   #5
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Default Re: carter 800 cfm

Quote:
Originally Posted by alanklain@gmail.com View Post
New member here.
Trying to create a new post with a METRO van for sale. Help?
Thanks,
Alan.
You posted in the "Carb Tech" Forum.

Go down to the "Classified" section and post in the "IH Vehicles for Sale" forum.

Post price, location and description with photos.
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Old 09-03-2019, 06:16 PM   #6
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Default Re: carter 800 cfm

sorry for the delay guys, life has been well life lol. here are the pics of said carb. thanks for the help
Attached Images
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File Type: jpg 20190903_180507.jpg (72.1 KB, 26 views)
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File Type: jpg 20190903_180537.jpg (55.1 KB, 25 views)
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Old 09-09-2019, 02:56 PM   #7
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Default Re: carter 800 cfm

ok, i have a model numbe for said Carter carb, i will have a tach reading for you guys here in a day or so. life has been a PITA lol.
Carter 4-4640 sa
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Old 09-09-2019, 09:44 PM   #8
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Default Re: carter 800 cfm

The carb looks like an old Carter AFB from the early 60's.
The p/n 4-4640SA appears to be a part number of one of the major parts of the carb, not the carb itself,...although I would need to do some more research to determine if I can tell what the carb is exactly by that number.
You could try to get a rebuild kit for it at a Carb shop (online) as it looks like it needs some love.
Did you try to adjust as I mentioned in post number 2. ?
Any results from that?
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Old 09-09-2019, 11:24 PM   #9
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Default Re: carter 800 cfm

not as of yet, i have not had a chance to get back under the hood. will be trying to do that tomorrow.
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Old 09-14-2019, 01:08 PM   #10
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Default Re: carter 800 cfm

Cool, take your time.

...also, I see the throttle cable control is not hooked up and the throttle return springs are not hooked up.

Those should be hooked up properly for the carb to function and be adjusted.
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Old 09-14-2019, 01:58 PM   #11
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Default Re: carter 800 cfm

throttle cable is not connecte4d since it doenot clip on too carb , and spring is worn out and i cant find a place to connect it too the carb and the intake
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Old 09-14-2019, 05:27 PM   #12
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Default Re: carter 800 cfm

That is unfortunate.
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Old 09-15-2019, 09:01 AM   #13
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Default Re: carter 800 cfm

Throttle return springs are inexpensive and can be purchased in different lengths and diameters. You get one slightly longer than needed and trim the excess off the straight ends. Stud fittings on throttle linkages can be changed to accept that throttle cable socket. Even if that carb was in much better condition, you still wouldn't be able to use it without a throttle cable connection and return spring setup in place. I know that's a Captain Obvious statement, but sometimes they're necessary to propel change.
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Old 09-20-2019, 08:10 AM   #14
1hc72
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Default Re: carter 800 cfm

i knew about the throttle return springs. i was unaware of changing he end of the throttle cable
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Old 09-20-2019, 09:33 AM   #15
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Default Re: carter 800 cfm

Well, not so much the end of the throttle cable. You can change the fitting on the carb linkage inexpensively to make it accept that cable as is, or you can replace the whole throttle cable with a Lokar universal throttle cable kit. That's the more expensive way to skin the cat, but they work great from what I hear.
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Coal Trickle - '99 Dodge Ram SLT 2500 Q-Cab SWB 4x4 - 5.9L 24V CTD/NV4500/8800# GVW/12K# winch
Hooty - '74 SII 4x4 - 392/TF727/D20/3.73 D44's/Spartan FA/Powr-lok RA/33g Fuel
Lemuel - '73 1210 Reg Cab 4x4 CS - 304/TF727/NP205/4.09 FA25 & 4.10 RA16/6800# GVW - "Pull Lemuel, pull!"
Organ Donor - '72 1210 Reg Cab 2WD - seized 392/TF727/7500# GVW - "Use my body to keep you alive!"
Mongo - '71 1210 Reg Cab 2WD - 345/TF727/4.10 RA17/6100# GVW - "Mongo love candy! Duh, huh, huh!"
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