Went to rebuild my carb and found some problems, the jets were stripped and some other parts were broken. So I went to to a local guy to see if he had any in stock, sold me one off a newer truck that was just rebuilt. Vacuum ports are different, there is a big one on the carb on the backside, and one on the front up top. The problem I'm having is the truck will fire and then dies unless I give it gas. Where do I start looking? Also the original air cleaner assembly hits the top vacuum port, any idea on what will clear?
Thanks.
carb issue
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jeepsteve
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sargentrs
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Re: carb issue
Got a photo of the new carb? The large port on the back should be for the PCV valve hose. For now, cap the unknown one on the front. Spacer rings are available for most air cleaners. A 1/2" spacer will probably give you enough clearance. https://www.summitracing.com/search/par ... eyword=air
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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jeepsteve
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Re: carb issue
I have pictures, every time I try to upload it says they are too big.
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jeepsteve
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Re: carb issue
Currently the pcv goes tot the spacer under the old carb. Do I tee it and go to the new one, or pull it off the spacer, cap that and go to the new carb?
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sargentrs
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Re: carb issue
Yeah, pics have to be 500kb or less. If your uploading from your phone, view the pic and take a screenshot. Crop the screenshot down to just the important part and save. Then try to upload the cropped version. If on your home computer, open the pic in MS Paint and resize to 800x600 pixels.
I didn't realize you had the spacer. Just cap the port on the carb.
I didn't realize you had the spacer. Just cap the port on the carb.
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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jeepsteve
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Re: carb issue
Well, I feel dumb. The gasket included with the rebuild kit was the wrong size, there was a 3/8" gap along the back of the carb i didn't see. put the right gasket on and it fired right up.
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sargentrs
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Re: carb issue
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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Ohiotinkerer
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Re: carb issue
If it makes you feel better I did the same thing when I did mine........jeepsteve wrote:Well, I feel dumb. The gasket included with the rebuild kit was the wrong size, there was a 3/8" gap along the back of the carb i didn't see. put the right gasket on and it fired right up.
"Life is a garden - dig it"........... 
1968 F100 2wd - Rangoon Red - 360 w/T18 - power steering and brakes
1997 Honda CBR 900RR
1968 F100 2wd - Rangoon Red - 360 w/T18 - power steering and brakes
1997 Honda CBR 900RR
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sparky72
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Re: carb issue
At least you didn't use the wrong intake gaskets, get a big internal vacuum leak, burn lots of oil, and have to R&R the intake... 
God bless aluminum
God bless aluminum Taylor
1972 F250 Ranger XLT 2wd / 8100 GVW / 390 / T18 / 3.73 D60
1972 F250 Ranger XLT 2wd / 8100 GVW / 390 / T18 / 3.73 D60