It Still Ain't Right !!! Aaarrrgghhhh !!!

[IGGISAIL]

Hi guys, after replacing the cyl head (2 cracks found) complete new set of gaskets, It is still over heating, done loads of work getting it all done and the thing is still overheating !!!! HELP !!! The engine overheated in the first instance which blew the head, so I am back to square 1, new head and still overheating, its a 2.4 SSR - G on a K plate, any help would be welcomed and would be much appreciated !!! Could it be the water pump ??? Oh and does anyone know what the two fans and radiator do that are at the front underneath the engine at the bottom do ??? Any help would be great !!! I don't want to give up on her yet, Only had her 6 months and i love her to bits !!!! IGGISAIL XXXxx

[Tallyman]

The rad underneath is the aircon rad.

Have you tried filling/burping the cooling system with both heaters fully open (i.e. on hot)? Best to start the engine from cold with the rad cap off and keep topping up with coolant until its full, then wack the rad cap on. Also, have you checked that the viscous fan is working properly? Did you change the thermostat when you had the head off?

[The Hornet]

Those fans are for the AC. Do a search and burp your system.

[plumb bob]

Hi, sorry to hear of your woes, been there myself.

1st, have you burped the cooling system?

waterpump should have been checked when head off, but if not it's a deffo possibility.

Flush the cooling system thoroughly, make sure all the timing marks are correctly lined up.

The 2nd rad with two fans is for the air con, so not related.

replace thermostat and rad cap, as a matter of course, same with cam belt and idlers.

hope this helps, if I think of anything else I'll get back to you.

Robert.

[IGGISAIL]

Aaarrrgghhhh !!!!!!!

Thanks for the advice guys, i have changed the thermostat again, fitted a new water pump, burped the coolant, replaced the fluids, then it ran fine for 30 mins. took her for a drive - no probs until i took her up a few hills, the fluid in the expansion tank is boiling and it popped the lid of the expansion tank, temperature went up and down with each gear change and finally went into the red whilst going up the hill to my dads house where i switched it off. cooland boiled and spewed out of the expansion tank. i have run out of ideas now !!!! prior to all this (mentioned in previous threads) i have put on a new head and complete gasket set. please help, i am now at my wits end !!! IGGISAIL

[MattF]

Have you replaced the rad cap? How much coolant did you put back into the coolant system when you flushed it?

[IGGISAIL]

I read in the max ellery book that i should put 10 litres in at 33% strength of coolant. Have a been a bit naive ?? is it too much ??? !!! IGGISAIL

[BUSHWHACKER]

I read in the max ellery book that i should put 10 litres in at 33% strength of coolant. Have a been a bit naive ?? is it too much ??? !!! IGGISAIL

Where 'bouts in south Wales, maybe I could have a look at it?

[surfenstein]

sorry to ask but was it a new head or a second hand head???? forgive my ignorance ive been away.also as mentioned before did you make sure all the air was out of the front and rear heaters.

[MattF]

If you managed to fit 10 Litres in, you did well. If you put in eight to nine plus, that means there are no major airlocks in there, but any airlocks do need removing. The two options that would probably leave you with are either a cr@p head/gasket, or loss of pressure in the system, due to rad cap generally, or possibly leaking hoses, as you appear to have replaced everything else. Again, have you replaced the rad cap?

[227angrydonkeys]

i did once hear a horror story of a crack in the block doing the same thing.
cna you get the engine pressure tested?

[splasher]

I think its a case of head bolts bottoming in block before head is clamped down. Did you compare the new bolt with the old ones. This happened to me and it turned out the bolt were too long, I had to put washers under the heads.

[drcrippen324]

I think its a case of head bolts bottoming in block before head is clamped down. Did you compare the new bolt with the old ones. This happened to me and it turned out the bolt were too long, I had to put washers under the heads.

close to the way i was thinking but i was thinking more to the head gasket thickness as a few cheaper copys made by parts company's arnt the same thickness as oem gaskets there for not raising the bolts far enough out of the block had the trouble when i did some serious mods to the MR2 and tried to skimp on the gaskets but ended up pulling the head off and putting the oversize Kevlar gasket in that i wanted in the first place then had to explain the price difference to my good lady

[IGGISAIL]

Where 'bouts in south Wales, maybe I could have a look at it?

Cheers for the offer Vince, I have two mech's coming to take it away today (and hopefully bring it back fixed) Cheers matey for a very generous offer !!! IGGI

[dieselboy]

did you get this fixed mate? what was the problem in the end?