2nd gear face plant - The 1947 - Present Chevrolet & GMC Truck Message Board Network

3r!c84 · 01-05-2010, 10:54 PM

ok when im getting on it.run threw first gear gets about up to 3k and u hear the primary's kick in and then it shifts at 43xx and then just falls flat on its face and slows down then gets back in it????????????

its a stock 305 with a quardajet
with a th350

83_Stepside · 01-05-2010, 11:30 PM

i've been having the same problem since i bought this truck a few months ago. i have a 700r4 though. i havent figured it out either.

low86c10 · 01-07-2010, 08:45 PM

mine used to do that and i put a edelbrock 650 on it and got rid of all the extra vacumm lines a junk and it runs great now, not bad for an old 305

3r!c84 · 01-07-2010, 08:55 PM

what intake are you using?

low86c10 · 01-07-2010, 09:23 PM

stock

3r!c84 · 01-07-2010, 09:28 PM

how can you fit that carb on a qjet style intake?

low86c10 · 01-07-2010, 09:30 PM

Quote:

Originally Posted by 3r!c84

how can you fit that carb on a qjet style intake?

adapter plate

3r!c84 · 01-07-2010, 09:33 PM

ohhhh u shoulda got a intake off of CL they are cheap like 50$ at the most
hell i got a preformer RPM airgap for cutting my friends grass

but im still looking for a carb

low86c10 · 01-07-2010, 09:38 PM

Quote:

Originally Posted by 3r!c84

ohhhh u shoulda got a intake off of CL they are cheap like 50$ at the most
hell i got a preformer RPM airgap for cutting my friends grass

but im still looking for a carb

i actually had one i got for $50 and my little brother tried to pick it up and dropped it and it cracked and i already had the adapter in the garage from an another car so i just used it when i ever clean my enginebay up i will prolly get me a new intake

low86c10 · 01-07-2010, 09:32 PM

i think i used this one
http://www.summitracing.com/parts/ED...odel|Performer

thirdstreettito · 01-07-2010, 11:27 PM

It could be the fuel filter or fuel pump. Mechanical or vacuum secondaries?

3r!c84 · 01-07-2010, 11:28 PM

vacuum secondaries
i could change the fuel filter thats in the carb.it dont have one any where else

low86c10 · 01-07-2010, 11:30 PM

Quote:

Originally Posted by 3r!c84

vacuum secondaries
i could change the fuel filter thats in the carb.it dont have one any where else

you should have another one, that might be your problem

3r!c84 · 01-07-2010, 11:31 PM

unless theres one under the truck.its all stock like this

low86c10 · 01-07-2010, 11:38 PM

Quote:

Originally Posted by 3r!c84

unless theres one under the truck.its all stock like this

yea i think its on the inside of the drivers side frame rail

Matt Man · 01-06-2010, 03:11 AM

fuel pump?

madcow75 · 01-06-2010, 04:58 AM

Mine has been doing the same also factory 305, th350. I was low on tranny fluid put some in and it has been good for a while but it's back again. Could it be dirty oil, filter or a vacuum problem? I haven't looked into it. Household work truck.

big10ratrod77 · 01-06-2010, 06:34 PM

yea my 77 dose that idk the rpms but when you get the four barrol open in
2nd and are pulling bout 75 mph it just dies then you shift and then it pics rite up ill you hit about 110 or so and it dose it again mines a 350/sm465/3.73s i was gonna rebuild it sooner or later and was gonna try a bigger needle and seat

BUT... i can say 1 thing back when my carb wont adjusted (it was about 6 turns out on each side) it would pull hard past 100 and start climbing towards 0 all this happened when i had my carb adjusted

01-05-2010, 10:54 PM	#1
3r!c84 Badass Join Date: Jan 2009 Location: lox. fl Posts: 4,586	2nd gear face plant ok when im getting on it.run threw first gear gets about up to 3k and u hear the primary's kick in and then it shifts at 43xx and then just falls flat on its face and slows down then gets back in it???????????? its a stock 305 with a quardajet with a th350 __________________ Think outside the box? -84c10 (1stcar)→My Build← -00 Saturn 5spd drop a gear and disappear! 1/4:13:90 Last edited by 3r!c84; 01-05-2010 at 11:02 PM.

01-05-2010, 11:30 PM	#2
83_Stepside Registered User Join Date: Dec 2009 Location: Columbia, SC Posts: 29	Re: 2nd gear face plant i've been having the same problem since i bought this truck a few months ago. i have a 700r4 though. i havent figured it out either.

01-07-2010, 08:45 PM	#3
low86c10 Registered User Join Date: Jul 2009 Location: louisville, Ky Posts: 105	Re: 2nd gear face plant mine used to do that and i put a edelbrock 650 on it and got rid of all the extra vacumm lines a junk and it runs great now, not bad for an old 305

01-07-2010, 08:55 PM	#4
3r!c84 Badass Join Date: Jan 2009 Location: lox. fl Posts: 4,586	Re: 2nd gear face plant what intake are you using? __________________ Think outside the box? -84c10 (1stcar)→My Build← -00 Saturn 5spd drop a gear and disappear! 1/4:13:90

01-07-2010, 09:23 PM	#5
low86c10 Registered User Join Date: Jul 2009 Location: louisville, Ky Posts: 105	Re: 2nd gear face plant stock

01-07-2010, 09:28 PM	#6
3r!c84 Badass Join Date: Jan 2009 Location: lox. fl Posts: 4,586	Re: 2nd gear face plant how can you fit that carb on a qjet style intake? __________________ Think outside the box? -84c10 (1stcar)→My Build← -00 Saturn 5spd drop a gear and disappear! 1/4:13:90

01-07-2010, 09:33 PM	#8
3r!c84 Badass Join Date: Jan 2009 Location: lox. fl Posts: 4,586	Re: 2nd gear face plant ohhhh u shoulda got a intake off of CL they are cheap like 50$ at the most hell i got a preformer RPM airgap for cutting my friends grassbut im still looking for a carb __________________ Think outside the box? -84c10 (1stcar)→My Build← -00 Saturn 5spd drop a gear and disappear! 1/4:13:90

01-07-2010, 09:32 PM	#10
low86c10 Registered User Join Date: Jul 2009 Location: louisville, Ky Posts: 105	Re: 2nd gear face plant i think i used this one http://www.summitracing.com/parts/ED...odel\|Performer

01-07-2010, 11:27 PM	#11
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Re: 2nd gear face plant It could be the fuel filter or fuel pump. Mechanical or vacuum secondaries? __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

01-07-2010, 11:28 PM	#12
3r!c84 Badass Join Date: Jan 2009 Location: lox. fl Posts: 4,586	Re: 2nd gear face plant vacuum secondaries i could change the fuel filter thats in the carb.it dont have one any where else __________________ Think outside the box? -84c10 (1stcar)→My Build← -00 Saturn 5spd drop a gear and disappear! 1/4:13:90

01-07-2010, 11:31 PM	#14
3r!c84 Badass Join Date: Jan 2009 Location: lox. fl Posts: 4,586	Re: 2nd gear face plant unless theres one under the truck.its all stock like this __________________ Think outside the box? -84c10 (1stcar)→My Build← -00 Saturn 5spd drop a gear and disappear! 1/4:13:90

01-06-2010, 03:11 AM	#16
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: 2nd gear face plant fuel pump? __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903

01-06-2010, 04:58 AM	#17
madcow75 Registered User Join Date: Jun 2009 Location: Fort Erie , Ontario Posts: 525	Re: 2nd gear face plant Mine has been doing the same also factory 305, th350. I was low on tranny fluid put some in and it has been good for a while but it's back again. Could it be dirty oil, filter or a vacuum problem? I haven't looked into it. Household work truck.

01-06-2010, 06:34 PM	#18
big10ratrod77 Registered User Join Date: Aug 2009 Location: hillborough nc Posts: 410	Re: 2nd gear face plant yea my 77 dose that idk the rpms but when you get the four barrol open in 2nd and are pulling bout 75 mph it just dies then you shift and then it pics rite up ill you hit about 110 or so and it dose it again mines a 350/sm465/3.73s i was gonna rebuild it sooner or later and was gonna try a bigger needle and seat BUT... i can say 1 thing back when my carb wont adjusted (it was about 6 turns out on each side) it would pull hard past 100 and start climbing towards 0 all this happened when i had my carb adjusted __________________ 77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin 79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s 81 mercedes 300d 25 MPG 77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded" 73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091 '77 chevy trucks. built to stay tough. life is short build a hot rod Last edited by big10ratrod77; 01-06-2010 at 06:35 PM.



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