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Found my coolant leak and then some

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Old 03-01-2019, 09:32 AM
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Default Found my coolant leak and then some

Original thread in general tech talk

ive been working on resurecting this 1998 D1 we got for dirt cheap. I started with changing plugs and wires then ran into a coolant leak��. I fixed that then on a road test found a major overheat problem ��
 

Last edited by dialtonehero57; 03-03-2019 at 04:46 PM.
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Old 03-01-2019, 10:05 AM
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Looks like someone got creative in trying to bypass the heater core.

How quickly was it overheating?
I'd probably go through the entire cooling system, if that heater-core was bypassed there may be more cooling issues.
 
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Old 03-01-2019, 11:46 AM
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Originally Posted by logan_gibson
Looks like someone got creative in trying to bypass the heater core.

How quickly was it overheating?
I'd probably go through the entire cooling system, if that heater-core was bypassed there may be more cooling issues.
ok well that’s interesting. I’ll trace out the lines and see what’s up. My thought is to start simple and do the thermostat. Then the water pump. It over heats with a decent warmup at idle then a good 5 mile romp down the road. The gauge was pegged.
 
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Old 03-01-2019, 11:49 AM
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Originally Posted by dialtonehero57

ok well that’s interesting. I’ll trace out the lines and see what’s up. My thought is to start simple and do the thermostat. Then the water pump. It over heats with a decent warmup at idle then a good 5 mile romp down the road. The gauge was pegged.
Never wanna peg that gauge, it doesnt move unless its well over overheating.

Parts are cheap, replace them all at the same time so you dont have to keep draining and refilling.
Cost me a little over $100 to have my radiator re-cored and gone through, if you have a local shop it may be worth it to have that done.
A fresh and clean cooling system goes a long way.

 
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Old 03-01-2019, 01:53 PM
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Originally Posted by logan_gibson
Never wanna peg that gauge, it doesnt move unless its well over overheating.

Parts are cheap, replace them all at the same time so you dont have to keep draining and refilling.
Cost me a little over $100 to have my radiator re-cored and gone through, if you have a local shop it may be worth it to have that done.
A fresh and clean cooling system goes a long way.
what about the water pump? Would you do that at the same time to?
 
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Old 03-01-2019, 02:01 PM
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Originally Posted by dialtonehero57

what about the water pump? Would you do that at the same time to?
Yup.
New hoses, new thermostat and gasket, New water pump and fan clutch.
IF the throttle body heater hasnt been bypassed and ISNT leaking, id leave it be.
If possible, try running some water through the heater core and getting that back going as well if you want heat.

I hate draining these systems and bleeding them, so If I do work I try to do it all at one time.
Plus, hoses are like 5-10$ so its cheap and easy to do. Along with the water pump usually under $100.
 
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Old 03-01-2019, 02:15 PM
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Originally Posted by logan_gibson
Yup.
New hoses, new thermostat and gasket, New water pump and fan clutch.
IF the throttle body heater hasnt been bypassed and ISNT leaking, id leave it be.
If possible, try running some water through the heater core and getting that back going as well if you want heat.

I hate draining these systems and bleeding them, so If I do work I try to do it all at one time.
Plus, hoses are like 5-10$ so its cheap and easy to do. Along with the water pump usually under $100.
yeah sounds like all good advice. A little weekend end project🤣🤣🤣🤣. All tha to get it where I can get it smogged and registered and drivable. Then of course there’s an exhaust leak, O2 sensors and maybe a cat. #loveablelandrovers
 
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Old 03-01-2019, 02:33 PM
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If your coolant is new and/or clean, siphon it out of the top of the radiator with a 5/8" OD hose into a bucket or jug. Then return it when ready.

Of course if it is old, replace it.
 
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Old 03-01-2019, 02:50 PM
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Originally Posted by WaltNYC
If your coolant is new and/or clean, siphon it out of the top of the radiator with a 5/8" OD hose into a bucket or jug. Then return it when ready.

Of course if it is old, replace it.
it’s all new. There’s no drain petcock on the bottom of the radiator ?
 
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Old 03-01-2019, 03:33 PM
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nope no petcock
- brilliant Land Rover
- get yourself a cheap hand pump from Harbor Freight
 
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