v8 1971 auto lhd..... Engine overheating.

M

Mr masala

Member
If ever I needed help, this is the time. !!

Purchased the car some months ago, problem has been with it all this time
Problem: the car drives and runs superb , as long as I stay on country lanes and quiet roads , a real pleasure to drive .. BUT , if I get into slow moving traffic for more that (say) 10-15 minutes , the oil light suddenly comes on , will then alternate between on/ off, but being mainly on .... on the last 'adventure' with it the engine cut out and took 10 minutes before it would start again, (of course it had to be in a very long string of traffic in a rush hour) BUT previous to this when on a motorway in slow traffic, and the problem started, I somehow managed to get off at the services , but the beast needed over an hour before it would start again... the temperature gauge needle is well into the green sector , but not into the red , when the trouble starts.
There seems to be no oil in water or water in oil .. the engine starts and runs well until this problem begins.
fingers crossed that someone can throw some light on this one.

I did send it to a garage to have it rectified, but I could see that they did not asses just how bad the overheating situation was , they had a look at it , took it for a run and pronounced it 'fit for active service' but as stated first lot of slow moving traffic .back to 'square one'..
Thanks Folks
Pat.
Ps.. Please put it down to 'an age thing' BUT the car is RHD..not lhd !
 
Make sure that the small bore coolant hose that goes between the top of the radiator and the top of the inlet manifold is clear. The metal pipe where it goes into the manifold is particularly prone to blockage.
 
Hi. I also have a blocked metal pipe that goes into the manifold. The stuff is stone hard and must be drilled out. Is it just a case of drilling it open, or will one end up in in the air/petrol channel?
 
Jostein Soppeland said:
Hi. I also have a blocked metal pipe that goes into the manifold. The stuff is stone hard and must be drilled out. Is it just a case of drilling it open, or will one end up in in the air/petrol channel?
Click to expand...
You can check to see if the pipe is blocked by opening the radiator cap and having a shufti inside the neck where the pipe connects to the rad, you will see the water entering the radiator tank if it's clear when the engine is running.

You can drill it out, but past experiences that have been documented here seem to show a mix of chiseling it out with a small screwdriver and drilling seems to be most effective.
You will go into the water jacket before you hit fuel or do any damage. Just don't break the little bit of pipe off the manifold, because then it will become hard work.
 
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