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Coolant Problem

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Alex_McMillin

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Hi All,

I have a coolant leak problem. I have replaced all the gaskets and the thermostat and still my TR4 is spitting out coolant. I think it may be coming out of the front of my water pump. Is this possible? Not where the gasket is, but out the water pump housing behind the pulley. If that's the case do I need to replace/rebuild the water pump?

.........Cheers, Alex
 
If the unit is going bad, it can start spitting coolant. Sounds like it's time for a new one.
 
DougF said:
If the unit is going bad, it can start spitting coolant. Sounds like it's time for a new one.
Click to expand...

<span style="color: #000099">Even this non-mechanic guy would be ordering a
new water pump. In the words of the famous Dr. McCoy-

"He's dead, Jim!"

d</span>
 
Hi Alex - my TR6 was doing the same thing and after chatting with the guys here the diagnosis was that the pump was shot. As Doug and Dale indicated, time for a new pump. It is an easy job.

Let us know how you make out!
 
Well, how about that. You replace the old worn water pump with a brand spankin' new one and no more leak. Also, noticing a big difference in the overall running of the car. She warms up nicely and holds steady in all conditions so far.

Cheers All, thanks for the help.

............Alex
 
One thing we LBC owners face is long periods of dormancy of our cars. The cooling system is a problem area in that the common coolant is the old-fashioned "green" coolant is used. This coolant is high in silicates. The problem arises with the 3 different metals in most LBC's cooling system... Brass, Aluminum, and Steel (cast iron)...This cooland promotes electrstatic discharge amongst these dissimilar metals... much like the chemical reaction in a battery. Damage to the cooling system results from this by manifesting itself as a radiator leak, water pump or heater core leak, pitting of the soft metals, and corrosion accumulation in the water jacket bottoms in the block, and rotted head gasket.

You can put a stop to this by thoroughly flushing out you cooling system with fresh water, then adding a 50/50 mix of Toyota's Red coolant and distilled water. The Toyota coolant has no silicates, and extremely low phoaphate levels... it actually uses ionized (chemically deactivated) salt as a stabilant... so it is totally harmless to the cooling system.

All engine jobs coming through my shop get Toyota coolant, regardless of Marque!
 
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