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


Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Dec 2021
Posts: 8
Grease Monkey
OP Offline
Grease Monkey
Joined: Dec 2021
Posts: 8
I'm wondering if the water pump that is on my 1955 235ci solid lifter engine is the correct one. The reason I suspect it is not correct is because the water pump pulley does not line up with the harmonic balance pulley and generator pulley. Eye balling the line up, the water pump pulley is between 1/8" and 1/4" out of line towards the engine.

The distance from the water pump housing to the pulley hub is 5 1/4". The water pump has the following markings on it.

On the impeller is 3873830 and GM. On the housing is 118501 and a "T" with a circle around the "T".

Can anyone please tell me if this is the correct water pump for this engine? I tried to attach photos of the markings, but the files are too big.

Wilwood Engineering1955-1957

Willwood Engineering

Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188


Joined: Jan 2002
Posts: 30,700
Likes: 141
ChatMaster - 25,000
Offline
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,700
Likes: 141
The numbers do not jive with my books. Perhaps the water pump was rebuilt and the flange the pulley attaches to is pressed on too far or not far enough.


Gene Schneider
Joined: Dec 2021
Posts: 8
Grease Monkey
OP Offline
Grease Monkey
Joined: Dec 2021
Posts: 8
Thanks for the info, Chev Nut. You might be correct about the water pump being rebuilt. If that is the case, the flange (hub) the pulley attaches to is pressed on too far. I was given a spacer to place between the flange and pulley. I'm going to try that to see if the water pump pulley will line up better.


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
2 members (GMMasterTech, Keith Knox), 72 guests, and 21 robots.
Key: Admin, Global Mod, Mod
Newest Members
NeilA, Jayhicks, Tomvanhouten, Dads29Chevy, Tractorman
18,308 Registered Users
Today's Birthdays
SabrinaKarras, Speedy1
Forum Statistics
Forums58
Topics59,072
Posts429,076
Members18,308
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