need a few pointers please....

[grs6680]

evening all the reason i ask is im going to flush the coolant system on my daily drive (diesel) to put new anti freeze in i dont ever think its been changed now what is the best and easiest way to flush the system out ive not got any PROBLEMS just want to flush the system before i do get some.

[trikey]

Warm the engine, pour in a bottle of radiator flush, run for a few miles then drop the water when cold.

Flush again using water then refil with anti freeze and bleed the system as recommended.

[Number 6]

Originally Posted by trikey

Warm the engine, pour in a bottle of radiator flush, run for a few miles then drop the water when cold.

Flush again using water then refil with anti freeze and bleed the system as recommended.

Trikey,,sounds good but do you have or know of a "How to "?

[suzublu]

Originally Posted by Number 6

Trikey,,sounds good but do you have or know of a "How to "?

One of Simon's excellent posts https://www.the75andztclub.co.uk/for...9&postcount=12

[Number 6]

Originally Posted by suzublu

One of Simon's excellent posts https://www.the75andztclub.co.uk/for...9&postcount=12

OK ,Thanks for that,But does that appertain to a Diesel engine ?

[trikey]

I dropped my water via the bottom hose on the radiator, flushed the radiator through using a hose pipe.

[Number 6]

Originally Posted by trikey

I dropped my water via the bottom hose on the radiator, flushed the radiator through using a hose pipe.

What about the Engine Block and heater ??

[marinabrian]

Originally Posted by Number 6

What about the Engine Block and heater ??

Block drain is on the back of the block, but I tend to dump the coolant by disconnecting the bottoms hose, you get just under half of the coolant out, then refill with your favourite flushing agent, and run for around 30 miles.

Drain while hot and the crud is in suspension, then refill with plain water run up to temperature, and repeat the process two or three times until the water drained runs clear.

Once this has been achieved, refill with neat antifreeze, and you will have a 50% mix.

This works for me, and it should work ok for you John

Brian

[trikey]

Originally Posted by Number 6

What about the Engine Block and heater ??

Flushed those too, disconnected the hoses for the matrix, got a lot of crud out of there by flushing (Reversed flow) Then did the engine block too.

When going from OAT to blue you must get all traces of OAT out of the system before putting the blue in, otherwise it will congeal and cause you major headaches.