63 fuel line clamp

[Michael G.]

On the passenger's side frame rail, just in front of the battery, 63's have a clamp that holds down the fuel line. The pic below is of one I removed from my car. My question is, is this the original clamp, and, if not what should it look like?

Thanks,

[Alan D.]

Re: 63 fuel line clamp

Mike, it looks original to me however that's going from memory since my car is not available right now. What's on your Top Flight?

[Michael G.]

Re: 63 fuel line clamp

The part in the pic came off of my top flight car during restoration. It was replaced with a repro part that looked the same but was zinc plated. The car got a deduct for that repro part, so I thought I'd restore this one and put it back on, if it is really the original.

[Rick A.]

Re: 63 fuel line clamp

Michael,

looks like the one on my Duntov 1963 Z06

[Michael G.]

Re: 63 fuel line clamp

Thanks, Rick. The underside of the clamp looks as though it might have been cad plated, (the pic below) the top (in the earlier pic) looks like it still has most of the original black stuff that was sprayed on the chassis.

[Timothy B.]

Re: 63 fuel line clamp

Mike,

I may be wrong but that clamp looks to me like the one that goes in the rear where the fuel line clamps to the frame by the rear cross member, (the first clamp).

The other clamps are different and more common looking strap clamps that are plated.

[Alan D.]

Re: 63 fuel line clamp

Take a look at your AIM (I only have the 64AIM) perhaps Sec 8 sheet B3.00

On the 64; at fuel tank 171109, at rear frame in wheel well 140571, then along frame and at fuel pump end 140569. Again these are from a 64 so if you can determine which part was used at your 63 pump end I can take a picture to confirm which one you have. Pay attention to any changes called for in the 63AIM since 63's are full of changes.

[Timothy B.]

Re: 63 fuel line clamp

Alan,

The 63 AIM shows 3757102 clip at the tank, I believe this is what Mike posted in his picture. Also shows 140571 clip at the rear kick up where the armour is and 140569 clip at three locations moving forward, the third location being by the fuel pump.

If this is correct than the picture Mike posted is of the clip at the fuel tank.

[Alan D.]

Re: 63 fuel line clamp

Forgot about that other clip since its out of sight. So it appears that 63 clips were used into 64 Have pictures of the other clips, but the 3757102 is only used in that location (in 64 anyways) So if Mike has at the location near the fuel pump the 140569 should be used (per Tim's 63AIM) see second picture of it.

[Michael G.]

Re: 63 fuel line clamp

My 63 AIM does say that 140569 is used near the fuel pump. The illustration in the AIM does not make it clear what the clip looks like, (and I don't have a print of that part), but if you guys say that 140569 is a "normal" fuel line clamp, rather than the open type shown in my pics, then both of my cars have the clamps reversed. Oddly, both of them came to me that way, from a different sequence of owners.

Thanks, all

[Timothy B.]

Re: 63 fuel line clamp

Michael,

I think in your 1963 AIM section 8 there is a close up picture (view A or B) and the pic clearly shows the rear clip as the one in your picture.

Keep in mind there is also a clamp around the rubber hose from the fuel sender to the metal line in the rear and it attaches to the rear crossmember but it's unrelated to your question.

I am curious as to other posters that reported this 3757102 clamp at the fuel pump location. My car came in pieces to me but the fuel line was attached and I never questioned this so that means it was per the AIM.

[Michael G.]

Re: 63 fuel line clamp

Tim, having spent many years dealing personally with GM plants' propensity to change fasteners somewhat randomly, or, often due to supply shortages, it would not surprise me at all if these clamps were interchanged by the plant on a frequent basis. I don't doubt for a minute that the "open" type clamp was easier to install than the other one, so it is very possible that the line worker switched it on his own. Don't get me started on how often I saw this happen.

While I am going to change this part to a "normal" clamp, its under protest. I think this forum, and the NCRS in general, tend to assume, far too often, that a car could only have been built one way. That is not remotely the case, especially in 63.

There, I'm off my soapbox

[Scott S.]

Re: 63 fuel line clamp

Forgot about that other clip since its out of sight. So it appears that 63 clips were used into 64 Have pictures of the other clips, but the 3757102 is only used in that location (in 64 anyways) So if Mike has at the location near the fuel pump the 140569 should be used (per Tim's 63AIM) see second picture of it.

Alan,

Yours is the first 3757102 fuel line clamp I have seen with the angular "G" stamping. The one that came off my '67 is stamped "AWT". Is there a way to look up what companies these stampings or logos represent? Mine was located where the AIM says it should be, UPC 8-B3, where the hard line starts at the RH rear of the car.

I have also seen the angular "G" stamping on fan shroud clips (U-nuts) and on a NOS example of the special clutch washer (UPC 7-C1, Item 5, GM 3756326).

The "AWT" stamping has shown up on six or seven different parts, so far.

[Timothy B.]

Re: 63 fuel line clamp

Michael,

Your protest is noted, my vote is for other 63 owners to respond with the type of clamp that's holding the line by the fuel pump.

[James J.]

Re: 63 fuel line clamp

My Oct. 62 car has the 140569 closed type clamp on the frame rail by the fuel pump.
The car is unrestored, but as pointed out in the past, no necessarily untouched