the temp guage always reads half,but when i take if for a rip and lift bonnet you can hear the coolent bubblein like mad .theres no major engine mods just had it a week or so.also any ideas on where id pick up s/rack ends... thanks

 

ive heard, that it is a really good idea to get your radiator checked out cause they tend to get alot of buildup
and make sure you run a good mineral oil, oil is also for cooling purpose.

 

The water temperature gauge will sit at the middle until the car overheats and gets damaged. With an aftermarket gauge reading between 180F to 220F the stock gauge does not move on my car at all.

As for the coolant bubbling like mad, thats not normal as far as I know. Do you mean its boiling or hissing or ?

 

my coolant bubbled when by mistake swapped the caps on the radiator might check that

 

thanks for the reply ,thought the standard guage might be a bit off ,cos its boiling noise . just got car from japan 78k kilo on clock, again engine looks standared but for apex airfilters witch wouldent change anything ... ah ah ah

 

so take it out and flush it out... by minerals you mean coolent ? thanks

 

any ideas on s/rack ends

 

thanks but checked that

 

wats the best mineral oil to use?cars still over heatin ,changed both rad caps<top rad pipe is hot bottom is warm ? wheres the thermostat?rad pipes feel like they have a bit of build up..temp guage still reads half way..fans workin when on ignitions on not sure when its running but should be ..right?its runnin on 95 fuel not jap 99..no major mods..wat are the general signs of engine failure... any help please

 

doe u think it could be the thermostat?the oils clean and it idles @900-1100 .no smoke from exhaust... ahahahaha help

 

also dont seam to be losein water..

 

coolents not a great color usual brown ..maybe change still cant realy be the prob..

 

any1

 

I had the same gurgling problem. Replaced both caps & problem disappeared.

Good luck!

 

Boiling noise on shut down is not uncommon, some if not all can usually be cured with "burping". Search using that term.
The stock temp guage is worse than worthless since if it moves off of roughly center, it's already too late. Get a decent aftermarket gauge.
If you just got the car, I'd recommend changing out the coolant, since you don't know how old it is anyway. Use green stuff (Ethylene Glycol) with as much DISTILLED water as you think you can get away with. Not sure about Ireland winters, but probably 60/40 water to coolant would work. Be sure to drain the engine block as well as the radiator. The drain plug is on the left side of the block.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/cooling-system-flush-info-441967/
http://www.fd3s.net/how-to_cooling_system.html
Couple of links to get you started. Use the search function and you can download a copy of the FACTORY SERVICE MANUAL for free at the top of this section.