[6pack] FW: Water pump Replacement Experience

[dave]

I know this pump is EXTREMELY expensive, but I really think its worth it.  I was not going to buy it, but the wife and I were heading out on a long trip and she said “just do it.”  we have a 72, with the needles pointing down.  The needle went from typically pointing to about the 7 position on a clock to about the 5 position.  We also installed the aluminum housing.  So saved about 6 pounds, which I know is pretty pointless.  Changing from steel to billet aluminum also has some horsepower gains (also probably small)

 

http://www.racetorations.co.uk/triumph-c56/tr5-tr250-c7/tr5-engine-c17/racetorations-lightweight-water-pump-and-pulley-billet-6-cylinder-p795

 

if it tells you anything, I’m going to get one for my TR4.

 

From: 6pack <6pack-bounces at autox.team.net> On Behalf Of Yahoo via 6pack
Sent: Thursday, July 25, 2019 12:31 PM
To: 6pack at autox.team.net
Subject: [6pack] Water pump Replacement Experience

 

Replaced the leaky original with a Country brand one made in India, and all seems well.   Visually similar to original.  With rad cap off to burp the system, I can see good speed of coolant circulation.  Original was StanPart/RHP.  Thin layer of Permatex Ultimate Gray on both sides of paper gasket.    A good technique for the tight space was to offer the nut up to the stud with an extendable magnetic pickup and then get the first few threads with a screwdriver on the side of the nut.    I had a hard time finding an original dimension stud so ended up cutting a longer one down on the bench grinder and using a coarse thread nut on the pump side.

Agree that a modern 5 vane curved impeller is more effective.   Understand The Flying Dutchman adds this on a pump overhaul.   Wonder what he uses.

A friend has access to a press and we might try to rebuild the original.    I'm told you can likely match the bearing and seal if you bring the old ones 

into a bearing supplier.

I'm not completely taken with the durability of the green replica rubber  hoses.  Used a new Gates brand hose for bottom rad hoses.   The parts guy at a better automotive supplier went out back and found a hose that matched the curve and diameter.   Cut it into the two needed lengths.

 

Cheers, Bruce Simms 73TR6

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