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#1
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Stripped threads in carburetor
I have a 1981 F-150 with 302 motor and automatic transmission. Bought it a few months ago from a guy whose condo association made him get rid of it. The fuel filter is the sort that screws into the carburetor. While replacing it I managed to damage the threads in the carburetor inlet. What I'm looking for is an inexpensive way to fix the problem, preferably without removing the carburetor from the vehicle. I don't want to spend a lot of money on this. The carburetor itself is working OK and I don't want to replace it if I don't have to. As is the motor will run fine, but there is a leak from the carb inlet due to the threads being stripped. Thanks for any suggestions you can offer. Joe |
#2
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"Joe Dackman" > wrote in message ... > > > I have a 1981 F-150 with 302 motor and automatic transmission. Bought it a > few months ago from a guy whose condo association made him get rid of it. > > The fuel filter is the sort that screws into the carburetor. While > replacing it I managed to damage the threads in the carburetor inlet. > > What I'm looking for is an inexpensive way to fix the problem, preferably > without removing the carburetor from the vehicle. I don't want to spend a > lot of money on this. The carburetor itself is working OK and I don't want > to replace it if I don't have to. As is the motor will run fine, but there > is a leak from the carb inlet due to the threads being stripped. > > Thanks for any suggestions you can offer. > > Joe > Go to Lowe's. Buy a roll of teflon tape, used to seal pipe joints to prevent leaks. Carefully replace the filter, after winding the tape on the male threads in the direction such that it tightens the end rather than loosen it when you screw the filter back in. HTH & good luck, s |
#3
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sdlomi2 wrote:
> > "Joe Dackman" > wrote in message > ... > > > > > > I have a 1981 F-150 with 302 motor and automatic transmission. Bought it a > > few months ago from a guy whose condo association made him get rid of it. > > > > The fuel filter is the sort that screws into the carburetor. While > > replacing it I managed to damage the threads in the carburetor inlet. > > > > What I'm looking for is an inexpensive way to fix the problem, preferably > > without removing the carburetor from the vehicle. I don't want to spend a > > lot of money on this. The carburetor itself is working OK and I don't want > > to replace it if I don't have to. As is the motor will run fine, but there > > is a leak from the carb inlet due to the threads being stripped. > > > > Thanks for any suggestions you can offer. > > > > Joe > > > Go to Lowe's. Buy a roll of teflon tape, used to seal pipe joints to > prevent leaks. Carefully replace the filter, after winding the tape on the > male threads in the direction such that it tightens the end rather than > loosen it when you screw the filter back in. HTH & good luck, s Teflon tape is 'not' a sealant, it is only a lubricant allowing you to tighten a fitting easier and tighter. It will not work on stripped threads. Loctite 'might' work if it get a chance to cure before use or a helicoil thread replacement can work. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
#4
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Mike Romain > wrote in
: > sdlomi2 wrote: >> >> "Joe Dackman" > wrote in message >> ... >> > >> > >> > I have a 1981 F-150 with 302 motor and automatic transmission. >> > Bought it a few months ago from a guy whose condo association made >> > him get rid of it. >> > >> > The fuel filter is the sort that screws into the carburetor. While >> > replacing it I managed to damage the threads in the carburetor >> > inlet. >> > >> > What I'm looking for is an inexpensive way to fix the problem, >> > preferably without removing the carburetor from the vehicle. I >> > don't want to spend a lot of money on this. The carburetor itself >> > is working OK and I don't want to replace it if I don't have to. As >> > is the motor will run fine, but there is a leak from the carb inlet >> > due to the threads being stripped. >> > >> > Thanks for any suggestions you can offer. >> > >> > Joe >> > >> Go to Lowe's. Buy a roll of teflon tape, used to seal pipe >> joints to >> prevent leaks. Carefully replace the filter, after winding the tape >> on the male threads in the direction such that it tightens the end >> rather than loosen it when you screw the filter back in. HTH & good >> luck, s > > Teflon tape is 'not' a sealant, it is only a lubricant allowing you to > tighten a fitting easier and tighter. It will not work on stripped > threads. > > Loctite 'might' work if it get a chance to cure before use or a > helicoil thread replacement can work. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's sorry but wrong. teflon tape is not a lub it is a sealant. it is developed specificily for pipe threads and is made to seal the thread in a liquid fitting. use enough wraps and it can sometimes crutch up and seal buggered up threads if your carefull. it is worth a try. KB -- ThunderSnake #9 Warn once, shoot twice 460 in the pkup, 460 on the stand for another pkup and one in the shed for a fun project to yet be decided on |
#5
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On Wed, 25 May 2005, Kevin Bottorff wrote:
> teflon tape is not a lub it is a sealant. it is developed specificily > for pipe threads and is made to seal the thread in a liquid fitting. use > enough wraps and it can sometimes crutch up and seal buggered up threads For *water* pipes, yes. The result when you attempt a halfassed "fix" like wrapping teflon tape around stripped threads in a *water* pipe is that you have a flood. The result when you attempt a halfassed "fix" like wrapping teflon tape around stripped threads in a *gasoline* pipe is you have a fire. Gasoline dissolves teflon tape in short order. To the original poster: there are repair fittings available that are slightly oversized. They cut new threads in the carb body as you thread them in. NAPA Echlin 2-75, see he http://www.napaonline.com/cgi-bin/nc...&usrcommgrpid= DS |
#6
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Daniel J. Stern wrote:
> > To the original poster: there are repair fittings available that are > slightly oversized. They cut new threads in the carb body as you thread > them in. NAPA Echlin 2-75, see he > http://www.napaonline.com/cgi-bin/nc...&usrcommgrpid= > > DS I like that idea less than teflon tape. I had a piece of brass fitting end up in my carb last year and jam the float open... not a pretty sight. (It was my own damn fault trying to thread a pipe thread into a flare fitting at 2am instead of calling it a day...) Ray |
#7
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"Daniel J. Stern" > wrote in
n.umich.edu: > On Wed, 25 May 2005, Kevin Bottorff wrote: > >> teflon tape is not a lub it is a sealant. it is developed specificily >> for pipe threads and is made to seal the thread in a liquid fitting. >> use enough wraps and it can sometimes crutch up and seal buggered up >> threads > > For *water* pipes, yes. The result when you attempt a halfassed "fix" > like wrapping teflon tape around stripped threads in a *water* pipe is > that you have a flood. > > The result when you attempt a halfassed "fix" like wrapping teflon > tape around stripped threads in a *gasoline* pipe is you have a fire. > Gasoline dissolves teflon tape in short order. > > To the original poster: there are repair fittings available that are > slightly oversized. They cut new threads in the carb body as you > thread them in. NAPA Echlin 2-75, see he > http://www.napaonline.com/cgi-bin/nc...PAonline/searc > h_results_product_detail.d2w/report?prrfnbr=23502989&prmenbr=5806&usrco > mmgrpid= > > DS Thank you for the advice. I will get the repair fitting. Have been unsuccessful with teflon tape on ordinary water pipe fittings in the past, and certainly would not want to risk it with a carburetor. Joe |
#8
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Kevin Bottorff wrote:
> > Mike Romain > wrote in > : > > > sdlomi2 wrote: > >> > >> "Joe Dackman" > wrote in message > >> ... > >> > > >> > > >> > I have a 1981 F-150 with 302 motor and automatic transmission. > >> > Bought it a few months ago from a guy whose condo association made > >> > him get rid of it. > >> > > >> > The fuel filter is the sort that screws into the carburetor. While > >> > replacing it I managed to damage the threads in the carburetor > >> > inlet. > >> > > >> > What I'm looking for is an inexpensive way to fix the problem, > >> > preferably without removing the carburetor from the vehicle. I > >> > don't want to spend a lot of money on this. The carburetor itself > >> > is working OK and I don't want to replace it if I don't have to. As > >> > is the motor will run fine, but there is a leak from the carb inlet > >> > due to the threads being stripped. > >> > > >> > Thanks for any suggestions you can offer. > >> > > >> > Joe > >> > > >> Go to Lowe's. Buy a roll of teflon tape, used to seal pipe > >> joints to > >> prevent leaks. Carefully replace the filter, after winding the tape > >> on the male threads in the direction such that it tightens the end > >> rather than loosen it when you screw the filter back in. HTH & good > >> luck, s > > > > Teflon tape is 'not' a sealant, it is only a lubricant allowing you to > > tighten a fitting easier and tighter. It will not work on stripped > > threads. > > > > Loctite 'might' work if it get a chance to cure before use or a > > helicoil thread replacement can work. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > sorry but wrong. teflon tape is not a lub it is a sealant. it is > developed specificily for pipe threads and is made to seal the thread in > a liquid fitting. use enough wraps and it can sometimes crutch up and > seal buggered up threads if your carefull. it is worth a try. KB > I am a plumber..... I have 'never' seen or heard of teflon tape fixing anything. It only allows you to tighten the fitting tighter so the real sealing faces have a chance to stay tight. If liquid is getting down the threads, nothing in my plumbers box short of solder will hold it. Threads are not sealing points. He needs to be able to get the threads tight enough to have the washer seal the faces of the fitting. Teflon tape will only help finish the stripping job. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
#9
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Mike Romain wrote: > He needs to be able to get the threads tight enough to have the washer > seal the faces of the fitting. Teflon tape will only help finish the > stripping job. Perfect answer and explanation, Mike. The *reason* why it is a futile exercise is key here. And kudos for not suggesting a bad body ground as the cause for stripped threads! Kidding, kidding!!! I enjoy your posts! Toyota MDT in MO |
#10
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Mike Romain wrote:
> Kevin Bottorff wrote: > > > > Mike Romain > wrote in > > : > > > > > sdlomi2 wrote: > > > > > > >> "Joe Dackman" > wrote in message > > >> ... > > >> > > > >> > > > >> > I have a 1981 F-150 with 302 motor and automatic transmission. > > >> > Bought it a few months ago from a guy whose condo association > > made >> > him get rid of it. > > >> > > > >> > The fuel filter is the sort that screws into the carburetor. > > While >> > replacing it I managed to damage the threads in the > > carburetor >> > inlet. > > >> > > > >> > What I'm looking for is an inexpensive way to fix the problem, > > I am a plumber..... I have 'never' seen or heard of teflon tape > fixing anything. It only allows you to tighten the fitting tighter > so the real sealing faces have a chance to stay tight. > > If liquid is getting down the threads, nothing in my plumbers box > short of solder will hold it. > > Threads are not sealing points. > > He needs to be able to get the threads tight enough to have the washer > seal the faces of the fitting. Teflon tape will only help finish the > stripping job. Pardon an ignoramus with an ignorant question: If the above is true, then what seals air-line fittings? I always had the idea they sealed on the threads, which is why everyone tells you to use Teflon tape on them. |
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