' 63 4657 fuel pump

[Michael G.]

Can anybody verify that the '63 4657 fuel pump listed today as item #
400034216863 is a service replacement? It has 4657HE stamped on the flange. The listing ends in about an hour.

Thanks, Mike

[Michael H.]

Re: ' 63 4657 fuel pump

Can anybody verify that the '63 4657 fuel pump listed today as item #
400034216863 is a service replacement? It has 4657HE stamped on the flange. The listing ends in about an hour.

Thanks, Mike

Michael,

I'd be VERY cautios. For some reason, the seller never shows the top of the pump. That would be a picture that would tell all. The unique feature of 63 is up there. In the area of the screws that hold the pump together, there are two unique locations on later pumps that have a raised pad around the screw. If the pads are present, it's not an original 63 pump.
Also, I have to wonder why the seller (Chicago Vette Supply/Al Fierke) didn't show the top that should have AC cast into the top. Hmmmmmmm....

http://cgi.ebay.com/ebaymotors/ws/eB...rdc=1&viewitem=

[Michael G.]

Re: ' 63 4657 fuel pump

Thanks, Michael. If I recall correctly, JD wrote recently that the two letters after the 4657 meant it was a service replacement, but I couldn't find that quote quickly. Oh well, I'll find another pump somewhere.

Mike

[Harry S.]

Re: ' 63 4657 fuel pump

I see the auction just ended with the pump going for $105.01.

I agree with Michael, probably best to avoid that one. Just look for one with the numbers only, no letter suffix's. There are plenty around, don't rush into a purchase. Also look at 63 chevy 409 fuel pumps, you may be surprised at what you find!

[John D.]

Re: ' 63 4657 fuel pump

Michael, Harry is 100% correct. You don't even have to see the pump to know it's not correct for a 63 if the 4657 has a suffix after it. By the way there were many suffixs it seems. That 4657 suffix pump has the frog pads. I saw that listing on ebay and said to myself. What a listing. Looks like it was staged. If you want the real deal pump it typically comes with a very old box. The box is dated and so is the pump. JD

[Michael G.]

Re: ' 63 4657 fuel pump

Thanks guys. It would've been nice if that pump was a correct one, 'cause I'm dressing the engine this week. If I can find a real one soon, I might be able to get it on before the engine goes in the car in two weeks. If not, I can always use my "frog pad" pump for now.

Look for a post in a few weeks where I'm complaining about a strange "ribbit" sound resonating through the FI plenum...

Mike

[Rob M.]

Re: ' 63 4657 fuel pump

JD,

I don't think these pumps were dated...

regards,
Rob

[Chuck G.]

Re: ' 63 4657 fuel pump

JD,

I don't think these pumps were dated...

regards,
Rob

They are dated, but you've got to look into a little hole and look for a number (2 or 3) and count the hatch marks to get the month. Can't see it "on the car".

Here are 2 pix, the one on the left has the "frog pads", the one on the right does NOT have the "frog pads" on the top.

Chuck

[John D.]

Re: ' 63 4657 fuel pump

Thanks guys. It would've been nice if that pump was a correct one, 'cause I'm dressing the engine this week. If I can find a real one soon, I might be able to get it on before the engine goes in the car in two weeks. If not, I can always use my "frog pad" pump for now.

Look for a post in a few weeks where I'm complaining about a strange "ribbit" sound resonating through the FI plenum...

Mike

Michael, The same thing happened to me a few years ago. My 63 FI engine was ready to go back in the chassis. I called my friend Cardina and said don't put the engine in the chassis yet as the fuel pump is a fake. He said we already changed the damn water pump two-three times and now you want to start changing fuel pumps. It was sooo funny. Or at least I thought so. (hope you have the correct water pump)
I thought of you today Mike. Our Pittsburgh chapter had a flea market and Dave Kitch and I were talking about the 4657 pumps. He did mention that a typical judge just looks for the AC logos and the 4657. But I am going to guess that is about to change with all the chatter on the forums about the frog pad pumps.
When you get the correct 4657 pump rebuilt be sure to buy a rebuild kit that is compatible with ethanol. John

[Jeffrey A.]

Re: ' 63 4657 fuel pump

You are correct. This pump was not dated. They are not the easiest to find either.

[Michael G.]

Re: ' 63 4657 fuel pump

Looking at my "frog pad" pump, I bet I could put it on my cnc mill and turn those two "pads" into round bosses. Until I can find a real one, I think I might put it on the car like that. (All you judges out there - please forget that I wrote that... )

Yeah, my water pump's correct, John, no bushing or anything. I also store my car near an airport, so I'll be stricktly using aviation fuel. That should eliminate any concerns with ethanol, and help with overheating.

Thanks, Mike

[Michael H.]

Re: ' 63 4657 fuel pump

Yeah, my water pump's correct, John, no bushing or anything. I also store my car near an airport, so I'll be stricktly using aviation fuel. That should eliminate any concerns with ethanol, and help with overheating.

Thanks, Mike

Would that be a 609 water pump?

[Michael G.]

Re: ' 63 4657 fuel pump

I don't know the part number off hand, Michael, and the car's not here at my home. I'm pretty sure its correct, but I'll look at the number tomorrow when I'm working on it.

Mike

[Michael H.]

Re: ' 63 4657 fuel pump

I don't know the part number off hand, Michael, and the car's not here at my home. I'm pretty sure its correct, but I'll look at the number tomorrow when I'm working on it.

Mike

Thanks Mike. Just curious. I'm wondering if anyone has a 340/360 HP 63 with an original pump other than a 3782609 casting number.

[Michael G.]

Re: ' 63 4657 fuel pump

Michael, My water pump is casting number 3859326. According to the JG, this is correct for all but early build 63 L84's (mine's an April build). Please note that this pump is not the original one (I don't know what casting the original pump was), so it should not be used as evidence of actual build patterns.

Mike