The Stovebolt Site Forums The Shop Area Engine Shop Water pump relocation bracket installation

Ordered Pre68Dave's relocation bracket and installed it this past weekend.

Before installation I looked around to see if anyone had photo's of the install - couldn't find any so I thought I would provide my reference shots.

...New Pump and Relocation Bracket...

...Remove the original back cover...

...Replace with relocation bracket, fasten additional two bolts...

...Back of pump...

...Attached to drill pilot holes...

...Pilot holes driled just 1/16"...

...No turning back now!...

...5/16" bit to make hole...

...marked off at 3/4" for depth...

...clean hole!...

...Threading the hole...

...installed!...

...Cleanest part of this 235!...

Thank you

Nice job Mark!
I'd never seen the process before either.
Maybe we can get your photos ino the tech section?

Jeremy

Answers a few questions for me but I still have more. Do you have to drill into the block for all of these short pump installations?

There is always some confusion when you say short shaft pump.
It is true the pumps used up to 1954 on pass, and 55 first on trucks, have a short shaft, but are more commonly called a high mount pump.
1955-62 pumps came with a very long shaft. These pumps can have the hub pressed on the shaft farther and the shaft cut off. These are what most people call short shaft pumps. The 1955-62 short shaft pump does not require any drilling for installing.

The 235 in my 49 gives me about 1/4" clearance between the fan and the rad. It has been that way for about 15 years and my biggest concern is changing fan belts.
The pump I have has an external impeller which goes into a hole in the block. My concern about changing to the other style pump with the internal impeller is whether or not the fan belt will line up.
I looked at a pump with the long shaft and considered pressing on the hub farther and cutting the shaft as you suggest. However if I recall the longer shaft pump also has more of the pump body casting surrounding the shaft.

? i am in the process of doing a 216 to 235 replacement is going with the adapter plate the best solution or is going with the short shaft pump the best way. my engine rebuilder said i could have over heating going with the adapter plate. also can i use the 216 manafold .my exhaust manafold were it ties to the pipe has a slite angle i was told it may be a 235 manafold ? the manafold has mumbers on it G M 38s5627 can i get a set of step down manafold rings for the 235 i am a newby Herb from maine

The relocation plate centers the water pump more accurately to the radiator. You should not have any overheating problems with the relocation plate. I did not and I bet others here never had a problem either. This is assuming your radiator is in good working condition.I think the mainifold number would be 3835627, not 38s. My parts book only goes to 1951, so I don't have that number.

Emma,

Heed what DrewP posted.

Ask your engine builder if he/she ever had an over-heating problem using an adapter plate with an older style water pump (on a block that had been carefully cleaned out). I bet the builder never used one and is stating hearsay or is just stating an opinion.

The exhaust manifold used on all 216s and on earlier 235s had a straight-down outlet (later 235s and all 261s outlet angled towards the rear). There were also differences in exhaust/intake port diameters.

Tim, 216 and 235 manifolds started angling back in 1949.
Group 3.601

Drew you are correct it is g M 383567 is that a 216 or 235 manafold so i can order the correct size rings do you know if their are step down manafold rings from 216 to 235 for when i install the rebuilt engine after the responce iam going to use the plate thank you herb

My GM parts manual does not list that number because it only goes up to 1951,so I can't help you
with that. There are step down rings available.Try Jim Carter truck parts. I bought mine a couple of years ago.

My 54 parts book does not show 383567 but it does show 383587, could the next to the last number be a 8 instead of a 6?
If so it would be a 1950-62, those years are for the exhaust manifold only, intakes changed some through the years.

My 1963 book lists has the following;

Exhaust Manifold, 55-62, ALL (6cyl.), (cast 3835587) p/n 3694164

Mike B

I have been uncomfortable with drill holes in my engine block, but this doesn't look that bad a process.

Thanks
Walt

I did it a couple days ago. no problems.

need drivers side spreader bar for em brake with spring it is round with a slot in the bar to insert into the brake shoe thanks Herb [email protected] boilerman006@gmail.com

I'd never seen a water pump adapter plate for adapting the older water pumps to the new block before.... Thanks for sharing the pictures and info on this.
John

looking for a huck spreader bar part # 5.182

Thanks for the pictures BigTonka. Getting ready to do my Water pump relocate job. This will be a big help. Glad the old search function is back.
Steve