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Over heating.

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HI all I have a overheating problem, I have tried flushing the system twice , but the strange thing is nothing ever comes out the drain plug on the engine only on the rad. If any body has any ideas would appreciate them. many thanks Steve.

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Hi Steve

I had the same problem a few years back and I had to get a wire pick up and around the jacket and keep dragging all of the **** out, it was a bit easier for me at the time as I also had the head off and I could go in from the top too.

I have also read on here that others have used some sorts of flushing agent!

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Same issue.. Use of a wire coat hanger.. Lots of **** came out including loads of the original casting sand!

Tim

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Remove and check the operation of the thermostat in a pan of water with a thermometer. You may not be getting sufficient flow through the stat and therefore radiator when you need it?...They are not expensive so maybe change the stat to rule it out if you can not measure the temperature?

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As Tim D. says,

prod around in that bolt hole orifice on the side of the engine block with a tough wire. Move the wire around with great vigor, as you replenish the radiator water supply (garden hose running).

 

Also:

Observe the flow of fluid with the radiator cap removed, and warm engine running, thermostat open.

If fluid flows gently/evenly from right side to left side, then your water pump is doing its job.

 

If fluid surges, then your water pump may need to be rebuilt or replaced.

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Hi Steve

I had the same problem a few years back and I had to get a wire pick up and around the jacket and keep dragging all of the **** out, it was a bit easier for me at the time as I also had the head off and I could go in from the top too.

I have also read on here that others have used some sorts of flushing agent!

Thanks for the advice Kevo,the drain hole on the engine is solid ,have tried flushing agents and the wifes wire coat hanger,but no luck someone has surgested having it acid cleaned sounds expensive?? Thanks again steve.

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Same issue.. Use of a wire coat hanger.. Lots of **** came out including loads of the original casting sand!

Tim

 

Thanks Tim tried that hole is solid....steve.

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Remove and check the operation of the thermostat in a pan of water with a thermometer. You may not be getting sufficient flow through the stat and therefore radiator when you need it?...They are not expensive so maybe change the stat to rule it out if you can not measure the temperature?

 

Thanks Shaun I have replaced the thermostat , looks like it is realy bunged up tried flushing it but cant get any fluid to come out of the engine drain hole, the rad drain hole is fine...Thanks again steve.

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You should have the radiator drain closed when you are trying to flush the block hole.

 

It was not clear if this was the case.

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You should have the radiator drain closed when you are trying to flush the block hole.

 

It was not clear if this was the case.

Thanks Sapphire72 that was one thing I did not try,But idid try unblocking the engine drain hole today and are now getting the very slightest drips of water, so maybe there is hope yet. Many thanks Steve.

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