Pre Molded 'S' Hose

[Roger D.]

My 76 used a pre molded 'S' hose from the fuel pump to the fuel line. I was unaware that my 69 would used one also. I am confused!!, also the line under the fuel pump is not bent at a 90 degree angle like I have seen from some other vendors. Mine is more like 45 degree's. I purchased a new pump with the proper logo and #s so I am not sure which is correct. Thank You Roger

[Terry M.]

Re: Pre Molded 'S' Hose

Joe Lucia will confirm, but my best recollection is that S-shaped hose became available in late 1971 or 1972. While it will function fine for your 1969, IK doubt it was so equipped originally.

[Joe L.]

Re: Pre Molded 'S' Hose

Joe Lucia will confirm, but my best recollection is that S-shaped hose became available in late 1971 or 1972. While it will function fine for your 1969, IK doubt it was so equipped originally.

Terry-----

As far as I can tell, the molded fuel supply hose was first used for later 1971. However, it will also work for earlier and I recommend it because "kinking" can occur with non-molded hose (that's probably why GM went to the molded hose in the first place). From what I can determine, these molded hoses were never available from GM in SERVICE.

I can't be 100% sure of the first use of the molded hose, though, since it was never available in SERVICE.

[Alan S.]

Re: Pre Molded 'S' Hose

Hi,
My 71 base engine 71, a January built car had the 's' shaped hose on it.
I've had 2 or 3 reproduction hoses on it that have all weeped gas through the bend in the hose near the fuel pump end of the hose after a year or two..
Might the process used to put the 'bend' permanently in the hose be damaging it?
Regards,
Alan

[Tom L.]

Re: Pre Molded 'S' Hose

Way back when I first bought my '72 I replaced the fuel line from the steel one to the pump with a piece of hose frommy FLAP. On the way to Carlisle, in the POURING rain it kinked. I now have the correct "S" hose, no problems. Unless judging is an issue, I'd stick with the incorrect hose. I had no fun dealing with that issue in the ran. Have fun!!

[Terry M.]

Re: Pre Molded 'S' Hose

Terry-----

As far as I can tell, the molded fuel supply hose was first used for later 1971. However, it will also work for earlier and I recommend it because "kinking" can occur with non-molded hose (that's probably why GM went to the molded hose in the first place). From what I can determine, these molded hoses were never available from GM in SERVICE.

I can't be 100% sure of the first use of the molded hose, though, since it was never available in SERVICE.

I have several of the molded S-shaped fuel hoses with part number labels on them (none for sale). I bought them in the 1972-1973 time frame from the parts counter, so I know it was available in service. My first use of it was to replace the kinked fuel line hose on my LT1.

My parts stock is not as well organized as yours Joe, but I will look for them over the next week or two. I have some other things interfering with my Corvette activities as the summer winds down in the north-land. There is life outside of corvettes, but I know that is a hard sell here.

[Joe L.]

Re: Pre Molded 'S' Hose

I have several of the molded S-shaped fuel hoses with part number labels on them (none for sale). I bought them in the 1972-1973 time frame from the parts counter, so I know it was available in service. My first use of it was to replace the kinked fuel line hose on my LT1.

My parts stock is not as well organized as yours Joe, but I will look for them over the next week or two. I have some other things interfering with my Corvette activities as the summer winds down in the north-land. There is life outside of corvettes, but I know that is a hard sell here.

Terry------


Well, I'd be very interested in what part number you have. I can't find anywhere that any special fuel supply hose (frame line-to-pump) was cataloged in the P&A catalogs for the 68-74 Corvette applications. Also, as far as the PRODUCTION hoses go, it's as follows:


1968-69-------GM #3747662----never available in SERVICE

1970-E71------GM #3933330----never available in SERVICE

L1971-72-------GM #3994298----never available in SERVICE

1973-74--------GM #6271610----never available in SERVICE

[Roger D.]

Re: Pre Molded 'S' Hose

Way back when I first bought my '72 I replaced the fuel line from the steel one to the pump with a piece of hose frommy FLAP. On the way to Carlisle, in the POURING rain it kinked. I now have the correct "S" hose, no problems. Unless judging is an issue, I'd stick with the incorrect hose. I had no fun dealing with that issue in the ran. Have fun!!

Hi Tom, that sounds like an experience that I would not loke to happen. Thanks

[Roger D.]

Re: Pre Molded 'S' Hose

How about the configuration of the line out of the bottom of the fuel pump. Most of them (S/B) look to be a 90 degree bend then the short house. True??

[Terry M.]

Re: Pre Molded 'S' Hose

Terry------


Well, I'd be very interested in what part number you have. I can't find anywhere that any special fuel supply hose (frame line-to-pump) was cataloged in the P&A catalogs for the 68-74 Corvette applications. Also, as far as the PRODUCTION hoses go, it's as follows:


1968-69-------GM #3747662----never available in SERVICE

1970-E71------GM #3933330----never available in SERVICE

L1971-72-------GM #3994298----never available in SERVICE

1973-74--------GM #6271610----never available in SERVICE

I knew you would Joe. I'll find them and report as soon as I can. I know someone else who has some as well. I will seek help from there also.

[Terry M.]

Re: Pre Molded 'S' Hose

Terry------


Well, I'd be very interested in what part number you have. I can't find anywhere that any special fuel supply hose (frame line-to-pump) was cataloged in the P&A catalogs for the 68-74 Corvette applications. Also, as far as the PRODUCTION hoses go, it's as follows:


1968-69-------GM #3747662----never available in SERVICE

1970-E71------GM #3933330----never available in SERVICE

L1971-72-------GM #3994298----never available in SERVICE

1973-74--------GM #6271610----never available in SERVICE

Joe,
Pick tag from 4/16/91 shows part # 14044508 described as "hose"; parts group SP3. I know this is a successive part number as I bought others earlier with a shorter number more appropriate to the 1971 era, but I am not presently able to locate them. There is a good chance the earlier ones were placed in service. I am sure at least one was, and I do know where that one is -- on the 1970.

I might be able arrange for the posting of a picture of the SERVICE and reproduction S-hoses if anyone is really interested. I am told that all the big-box Corvette part vendors market a reproduction.

FWIW: The SERVICE hoses are marked "NBR - CSM" in a close repeat pattern. If I were to use these on a judged car I would remove those markings. I think lacquer thinner would do the job.

[Joe L.]

Re: Pre Molded 'S' Hose

Joe,
Pick tag from 4/16/91 shows part # 14044508 described as "hose"; parts group SP3. I know this is a successive part number as I bought others earlier with a shorter number more appropriate to the 1971 era, but I am not presently able to locate them. There is a good chance the earlier ones were placed in service. I am sure at least one was, and I do know where that one is -- on the 1970.

I might be able arrange for the posting of a picture of the SERVICE and reproduction S-hoses if anyone is really interested. I am told that all the big-box Corvette part vendors market a reproduction.

FWIW: The SERVICE hoses are marked "NBR - CSM" in a close repeat pattern. If I were to use these on a judged car I would remove those markings. I think lacquer thinner would do the job.

Terry-----

That's a part number from about 1979. I'm out of town right now. I'll check on it when I get home next week.

[Joe L.]

Re: Pre Molded 'S' Hose

Joe,
Pick tag from 4/16/91 shows part # 14044508 described as "hose"; parts group SP3. I know this is a successive part number as I bought others earlier with a shorter number more appropriate to the 1971 era, but I am not presently able to locate them. There is a good chance the earlier ones were placed in service. I am sure at least one was, and I do know where that one is -- on the 1970.

I might be able arrange for the posting of a picture of the SERVICE and reproduction S-hoses if anyone is really interested. I am told that all the big-box Corvette part vendors market a reproduction.

FWIW: The SERVICE hoses are marked "NBR - CSM" in a close repeat pattern. If I were to use these on a judged car I would remove those markings. I think lacquer thinner would do the job.

Terry-------


GM #14044508 was cataloged as the SERVICE replacement fuel line-to-pump for 1980-81 Corvettes. It was not used as the PRODUCTION part for 1980-81 Corvettes, though. The PRODUCTION part number for 1980-81 as well as 1973-79 was GM #6271610. As far as I can determine, the latter part was never available in SERVICE. However, since the PRODUCTION hose for 1973-81 was the same, that strongly implies that the 14044508 would work for 1973-79 even though it was never cataloged for those year models. I cannot find that there was ever any SERVICE-available predecessor part number to the 14044508. The GM #14044508 was discontinued without supercession in September, 1994.

[Terry M.]

Re: Pre Molded 'S' Hose

Thanks Joe.
I had planned to have a comparison of the SERVICE 14044508 to the commonly available reproduction by now, but life intervened. Hope to get 'er done next week.