Rustytractor
Member
Hi all, I'm a Brit in London and I just joined the forum. I'm pretty sure that the questions I'm posting have been covered many times before but here goes:-
About 6 months ago I found a 1952 Buick Special in a garage next to a house a few miles from my house. I'd driven by it a million times without ever considering that anything of interest would be inside but this time the door was open and I saw the front of this dusty Buick staring at me. Cut a long story short the elderly owner had just died and his brother wanted to sell the car (which hadn't moved for 25 years !!) - needless to say a deal was struck and I collected the car on my old Ford C600 Recovery truck and took it to the workshop.
Within 24 hours it was up and running and driving around pretty good for a long time slumbering old car. Exhaust blows, hard tyres etc but it ran great (short runs only as it needed fully sorting), the brakes worked and the car was totally rust free so I'm pretty happy.
Anyway, I noticed the temperature gauge was climbing so checked the obvious - sticking thermostat (there wasn't one), radiator flow (had it checked and descaled but wasn't too bad), opened the drain by the disributor and got a tiny trickle so I knew the block was clogged with years of rubbish. I then performed the following engine work:-
When trying to take the temperature sender out of the head it was seized and broke in half - part remained in the head. It worked before attempting removal but doesn't work now and I can't seem to locate a replacement.
Anyway, the car started fine after the rebuild and runs super smooth and quiet BUT there appears to be no water flow whatsoever. I removed the new thermostat to see if that was causing the problem but it made no difference. The block is clear, the head looks like new so I assume that's not blocked either.
To me it appears that the water pump isn't doing anything but I find it hard to understand why. The impeller looked ok, a bit corroded but no play in the bearing and no leak from the seal. I've read countless posts about bypass hoses, flow restrictors in the lower half of the thermostat housing, lack of flow and overheating issues wth these engines but I've gone through everything I can think of except replacing the water pump (which don't seem that easy to find, especially when you're in England!).
Is there something I'm missing here ? I have a 1952 shop manual but it sheds no light on what the problem may be but this is my first straight 8 (I'm used to V8's as i have a collection of Cadillac's ranging from 1941 to 1971, Mustangs, Thunderbirds, V8 Porsches and various V12 Ferrari's and Jaguars etc) but this lovely straight 8 engine may need something that I'm unware of. Or it could just be that the water pump is toast
I've located a water pump from Old parts Source which I can get shipped over but it's quite expensive so I thought I'd check before ordering one.
The funniest part is that I also have a 1949 Roadmaster with exactly the same "blocked up block" problem so once the '52 issue is resolved I'll be doing it all again with the '49.
So - everything perfectly clean and clear, Rad clear, pump not replaced = no water flow.
Any advice greatly appreciated.
Russ
About 6 months ago I found a 1952 Buick Special in a garage next to a house a few miles from my house. I'd driven by it a million times without ever considering that anything of interest would be inside but this time the door was open and I saw the front of this dusty Buick staring at me. Cut a long story short the elderly owner had just died and his brother wanted to sell the car (which hadn't moved for 25 years !!) - needless to say a deal was struck and I collected the car on my old Ford C600 Recovery truck and took it to the workshop.
Within 24 hours it was up and running and driving around pretty good for a long time slumbering old car. Exhaust blows, hard tyres etc but it ran great (short runs only as it needed fully sorting), the brakes worked and the car was totally rust free so I'm pretty happy.
Anyway, I noticed the temperature gauge was climbing so checked the obvious - sticking thermostat (there wasn't one), radiator flow (had it checked and descaled but wasn't too bad), opened the drain by the disributor and got a tiny trickle so I knew the block was clogged with years of rubbish. I then performed the following engine work:-
- Removed the head, had it hot tanked, valve guides checked and valve seats converted for unleaded.
- Rocker shaft stripped, hot tanked and refaced.
- Strip and clean water pump, check bearings and seals which seemed fine.
- Remove freeze plugs, clean out block waterways with wire picks, brushes, hot high-pressure steam cleaner (the amount of junk that came out from the back of the engine was staggering) until water flowed clean through every orifice.
- Rebuild with new freeze plugs, gasket set and repaint as required.
- Oil and filter change, new thermostat, new hoses and bypass hose, spark plugs, points, condenser and cap.
When trying to take the temperature sender out of the head it was seized and broke in half - part remained in the head. It worked before attempting removal but doesn't work now and I can't seem to locate a replacement.
Anyway, the car started fine after the rebuild and runs super smooth and quiet BUT there appears to be no water flow whatsoever. I removed the new thermostat to see if that was causing the problem but it made no difference. The block is clear, the head looks like new so I assume that's not blocked either.
To me it appears that the water pump isn't doing anything but I find it hard to understand why. The impeller looked ok, a bit corroded but no play in the bearing and no leak from the seal. I've read countless posts about bypass hoses, flow restrictors in the lower half of the thermostat housing, lack of flow and overheating issues wth these engines but I've gone through everything I can think of except replacing the water pump (which don't seem that easy to find, especially when you're in England!).
Is there something I'm missing here ? I have a 1952 shop manual but it sheds no light on what the problem may be but this is my first straight 8 (I'm used to V8's as i have a collection of Cadillac's ranging from 1941 to 1971, Mustangs, Thunderbirds, V8 Porsches and various V12 Ferrari's and Jaguars etc) but this lovely straight 8 engine may need something that I'm unware of. Or it could just be that the water pump is toast
I've located a water pump from Old parts Source which I can get shipped over but it's quite expensive so I thought I'd check before ordering one.
The funniest part is that I also have a 1949 Roadmaster with exactly the same "blocked up block" problem so once the '52 issue is resolved I'll be doing it all again with the '49.
So - everything perfectly clean and clear, Rad clear, pump not replaced = no water flow.
Any advice greatly appreciated.
Russ