Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


Previous Thread
Next Thread
Print Thread
Rate Thread
#469397 04/29/22 01:33 PM
Joined: Dec 2007
Posts: 4,012
Likes: 97
ChatMaster - 4,000
OP Offline
ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,012
Likes: 97
I am considering adding a hidden 6 volt "booster" fuel pump to my '37. Now that I have another classic car with one I can see the value. It does save a lot of wear and tear on the starter motor.

I found this 6 volt fuel pump in my stash of parts. It is a Carter 4259. Based on the information I can find it is a rotary vane pump. My research also indicates that this is probably not the correct pump for a booster application. It appears that it will have enough resistance to flow that the original mechanical fuel pump might have problems pulling through it.

I saw some postings that indicate they used this as their primary pump with a pressure regulator set at 3 1/2 to 4 psi. It is capable of about 6 psi which I expect is too much for these carburetors.

Am I missing anything?

Attached Images
IMG_4024.jpg

Rusty

VCCA #44680
Joined: Dec 2011
Posts: 1,019
Likes: 3
ChatMaster - 1,000
Offline
ChatMaster - 1,000
Joined: Dec 2011
Posts: 1,019
Likes: 3
Hello Rusty,

From what I have read, 3 lbs is the max for these carbs. I did purchase, but have not installed, a 6 volt pass thru electric fuel pump. It states it will prime the mechanical pump when activated, but when power is turned off it will not hinder the mechanical pump from drawing fuel.
If interested, I will dig thru my stuff for the name of the pump.


Dave
old cars are meant to be driven !!
VCCA # 047832
Joined: Dec 2007
Posts: 4,012
Likes: 97
ChatMaster - 4,000
OP Offline
ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,012
Likes: 97
Hi Dave,

Sorry I meant to respond earlier.

It would be great if you can provide any details about the pump you bought.

My concert is that the pump I have is not a pass through type.


Rusty

VCCA #44680
Joined: Jan 2006
Posts: 7,018
Likes: 107
Hall Monitor
ChatMaster - 7,000
Offline
Hall Monitor
ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,018
Likes: 107
Rusty, I put a 6v electric on my 53 to fill the carb after the car sits for a while. I used a one way valve and a couple of "T"s to provide unrestricted fuel when the electric pump isn't being used. That way I don't have to worry about having to pull fuel through it. I think I posted here about it when I did it along with a schematic. I'll go back and review my past posts to see if I can find it.

Edit: Here it is, scroll down for the schematic. It works really well even after my 12v conversion.
https://vccachat.org/ubbthreads.php.../true/electric-fuel-pump.html#Post428297

Last edited by Tiny; 06/30/22 10:31 AM.

VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
Joined: Dec 2007
Posts: 4,012
Likes: 97
ChatMaster - 4,000
OP Offline
ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,012
Likes: 97
Thanks for the additional details as well as the links to the older posts.

I know that the fuel pump in my picture is not a pass-through style. Plus it is fairly large pump physically so it would be tricky to mount. I am also concerned that it might develop too much pressure.

There are lots of pumps like the Spectra. The one on my other classic car is a similar inline pump with a filter. There is no bypass loop on it and it seems to work fine.

The reality is that with a new battery the engine starts really quickly unless it has been sitting for 2 or 3 days. Then it takes about 5 seconds.


Rusty

VCCA #44680

Link Copied to Clipboard
Support The VCCA!

Enjoy the forum? Become a VCCA member! The World's Best Chevrolet and GMC Club!


Member Photos
1964 Chevrolet Impala SS
1964 Chevrolet Impala SS
by DreamChevy, February 17
My 1933 Chevy 2 Dr. Sedan
My 1933 Chevy 2 Dr. Sedan
by 1939Chevy1, November 24
Back on the road 79 years later
2 1927 Chevrolet Trucks
2 1927 Chevrolet Trucks
by 1927TRUCKS, June 7
Who's Online Now
3 members (Keith Knox, Ed_Osier, dougs), 28 guests, and 37 robots.
Key: Admin, Global Mod, Mod
Newest Members
ArleyH, Aslaned, Eyzman, Wenlock, Flatcreeker
18,294 Registered Users
Today's Birthdays
61 vert, awixas, SPANGLER
Forum Statistics
Forums58
Topics59,029
Posts428,817
Members18,295
Most Online1,133
Jan 22nd, 2020
 

Notice: Any comments posted herein do not necessarily reflect the official position of the VCCA.

Powered by UBB.threads™ PHP Forum Software 7.7.5