Carb. REbuild - Page 2

Ford4x4Chik27 · 08-12-2005, 10:24 AM

ok just an idea :-X

80ToyotaPU · 08-12-2005, 10:27 AM

ya i know i check every thing then checked it twice more. just shows that im not good with every thing.

Ford4x4Chik27 · 08-12-2005, 01:48 PM

Humbling ain't it?

I know the feeling

Truck_Man · 11-07-2005, 12:12 PM

It sounds like a float or needle valve issue of some sort. Did you put in a new needle valve and seat, is it in properly. Take it apart when you move the float up and down does it move freely. Thats about all the advice I could give, chevyguy is smart, he may be able to help you more with this. Im not really sure about alot of things but the fact that it was wet with fuel and the glass being full when it's suposed to be half full. Is the glass piece a float adjustment indicator of some sort, I dont know what you mean by this.

One more thing, did you put a high volume fuel pump on this vehicle, if you did you may need a fuel presure regulator installed. My brother in law put a high volume fuel pump on his camaro and had problems with the fuel presure getting too high at times and that would force the needle valve open and fload his engine. He had to go back to a stock fuel pump or get a regulator. I dont know if you have made any changes here or not though.

chevyguy · 11-07-2005, 12:42 PM

Truck man is on the right path. Sounds like some gradu got in the float vavle somehow. Usually when you go thru a carb you open it up to outside elements. I think you probally have something in the float valve, or improper float level/ If the site glass in full then you are getting way more fuel in the bowl than needed and it is dumping the extra down the throat of the carb and flooding it with raw unmetered fuel. Definately agree with truck man here. Check float and float fuel circuit

80ToyotaPU · 11-07-2005, 03:22 PM

wow this is an old thread. i know its something to do with the float, i had three techs look at it, they all dont know whats wrong with it. so i just parked it and it hasnt move sents. im waiting to get out of college before i deside what i'll do with it. or if someone in my family pays for a professional rebuild, or a whole new carb.

82prerunner · 02-02-2006, 10:32 AM

The float should control the level in the sight glass. If it is filling up past the middle of it then the float is not closing off the gas the way it should. Toss that oem carb & make your life simpler with a weber 32/36 with water (dgav), electric (dgev) or manual (dgv) choke. Much cheaper & easier rebuilds. I have had a dgev but went with dgv with manual choke. That was about 20 years ago. Been rebuilt maybe 3 times at most. Still works like champ. No mysto fuel issues at all. We're talking about 280k worth of driving-abusive driving. I probably still have the factory one in a box somewhere in the garage. Lemme know if you need something oem off it. My truck was originally '82 2wd 1/2 ton. Not sure how much the same it would be since '80 was 20r & mine is 22r. I believe the fitment on the intake would be pretty much the same just not sure how different connections off of it would be.

80ToyotaPU · 02-06-2006, 01:45 PM

well my grandparents paid for it to get done. i'll be getting it back tomarrow are 3pm PST, if its not windy one day this week i'll have it up and running.

chevyguy · 02-08-2006, 08:51 PM

has to ba float issue, the sight glass should be half and half. The float or flaot vale have to be the culprit.

80ToyotaPU · 02-08-2006, 09:11 PM

well there were 2 problems the new float had a crack and filled up, 2 the was a crack were the fuel came in to the carb, i had a spare carb that had this piece. i will get the carb tomarrow.

08-12-2005, 10:24 AM	#11
Ford4x4Chik27 Senior Member Join Date: Sep 2004 Location: Sac-Town, Cali Posts: 1,711	ok just an idea :-X __________________ '93 Isuzu Amigo, Toyota Axles/Tcase/Drivelines, 35" MTR's. '01 Pathy, DD. ************************************ A fact of life: After Monday and Tuesday, even the calendar says W T F.....**

08-12-2005, 10:27 AM	#12
80ToyotaPU Full Member Join Date: Jun 2005 Location: Crestline Ca Posts: 38	ya i know i check every thing then checked it twice more. just shows that im not good with every thing. __________________ 80 toyota pick up: bench seat and up graded stearo http://www.cardomain.com/member_page...ride=member_id

08-12-2005, 01:48 PM	#13
Ford4x4Chik27 Senior Member Join Date: Sep 2004 Location: Sac-Town, Cali Posts: 1,711	Humbling ain't it? I know the feeling __________________ '93 Isuzu Amigo, Toyota Axles/Tcase/Drivelines, 35" MTR's. '01 Pathy, DD. ************************************ A fact of life: After Monday and Tuesday, even the calendar says W T F.....**

11-07-2005, 12:42 PM	#15
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,555	Truck man is on the right path. Sounds like some gradu got in the float vavle somehow. Usually when you go thru a carb you open it up to outside elements. I think you probally have something in the float valve, or improper float level/ If the site glass in full then you are getting way more fuel in the bowl than needed and it is dumping the extra down the throat of the carb and flooding it with raw unmetered fuel. Definately agree with truck man here. Check float and float fuel circuit __________________ Some people are like slinkies, Basically useless, But fun to watch when you push them down the stairs.

11-07-2005, 03:22 PM	#16
80ToyotaPU Full Member Join Date: Jun 2005 Location: Crestline Ca Posts: 38	wow this is an old thread. i know its something to do with the float, i had three techs look at it, they all dont know whats wrong with it. so i just parked it and it hasnt move sents. im waiting to get out of college before i deside what i'll do with it. or if someone in my family pays for a professional rebuild, or a whole new carb. __________________ 80 toyota pick up: bench seat and up graded stearo http://www.cardomain.com/member_page...ride=member_id

11-07-2005, 12:12 PM	#14
Truck_Man Senior Member Join Date: Oct 2005 Posts: 213	It sounds like a float or needle valve issue of some sort. Did you put in a new needle valve and seat, is it in properly. Take it apart when you move the float up and down does it move freely. Thats about all the advice I could give, chevyguy is smart, he may be able to help you more with this. Im not really sure about alot of things but the fact that it was wet with fuel and the glass being full when it's suposed to be half full. Is the glass piece a float adjustment indicator of some sort, I dont know what you mean by this. One more thing, did you put a high volume fuel pump on this vehicle, if you did you may need a fuel presure regulator installed. My brother in law put a high volume fuel pump on his camaro and had problems with the fuel presure getting too high at times and that would force the needle valve open and fload his engine. He had to go back to a stock fuel pump or get a regulator. I dont know if you have made any changes here or not though.

02-02-2006, 10:32 AM	#17
82prerunner Junior Member Join Date: Feb 2006 Location: Houston/Galveston,TX Posts: 5	The float should control the level in the sight glass. If it is filling up past the middle of it then the float is not closing off the gas the way it should. Toss that oem carb & make your life simpler with a weber 32/36 with water (dgav), electric (dgev) or manual (dgv) choke. Much cheaper & easier rebuilds. I have had a dgev but went with dgv with manual choke. That was about 20 years ago. Been rebuilt maybe 3 times at most. Still works like champ. No mysto fuel issues at all. We're talking about 280k worth of driving-abusive driving. I probably still have the factory one in a box somewhere in the garage. Lemme know if you need something oem off it. My truck was originally '82 2wd 1/2 ton. Not sure how much the same it would be since '80 was 20r & mine is 22r. I believe the fitment on the intake would be pretty much the same just not sure how different connections off of it would be. __________________ 400k going on a million!

02-06-2006, 01:45 PM	#18
80ToyotaPU Full Member Join Date: Jun 2005 Location: Crestline Ca Posts: 38	well my grandparents paid for it to get done. i'll be getting it back tomarrow are 3pm PST, if its not windy one day this week i'll have it up and running. __________________ 80 toyota pick up: bench seat and up graded stearo http://www.cardomain.com/member_page...ride=member_id

02-08-2006, 08:51 PM	#19
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,555	has to ba float issue, the sight glass should be half and half. The float or flaot vale have to be the culprit. __________________ Some people are like slinkies, Basically useless, But fun to watch when you push them down the stairs.

02-08-2006, 09:11 PM	#20
80ToyotaPU Full Member Join Date: Jun 2005 Location: Crestline Ca Posts: 38	well there were 2 problems the new float had a crack and filled up, 2 the was a crack were the fuel came in to the carb, i had a spare carb that had this piece. i will get the carb tomarrow. __________________ 80 toyota pick up: bench seat and up graded stearo http://www.cardomain.com/member_page...ride=member_id

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Timing or Carb Issues ????	runedawg	Dodge Truck Forum	10	11-18-2005 04:55 PM
Nv 4500 tranny rebuild tutorial/guide	tonyseahawk	Chevy Truck Forum	0	06-04-2005 03:40 PM
nv4500 rebuil turorial/manual	tonyseahawk	GMC Truck Forum	0	06-02-2005 03:04 PM
carb problems	F150on40's	Ford Truck Forum	3	01-05-2005 06:52 PM
Info On 350 Rebuild For 1992 Chevy	CUSTOMRODS	Chevy Truck Forum	1	12-01-2004 02:09 PM