japanalpine wrote: Also, any special tips to bleed the cooling system? Seems like the engine is higher than the rad maybe just keeping it the correct angle? My guess is if we do it smart, no need for a bleed nipple that will probably break anyway.
You are on to my favourite subject now
First ... to flush out the rad ... the best way is to remove it to flush, but that depends on how far you want to go. The other way, withour removing it is quite good also. Remove the Rad Switch and detach the two Rad hoses. Get a mains water supply with a hose and a trigger nozzle, and direct the jet through the rad switch opening directing the jet stream downwards and wiggle it around. This will get to any sludge that is lying around the bottom of the rad. Continue till clear water is being ejected from the two rad hose pipes.
With the hoses still detached, raise the back of the Alp up so the under floor water pipes slope towards the front, and flush there pipes from the engine bay .... before reattaching the hoses after engine removal. You can also flush the engine water ways via the hoses in the engine bay.
To assist refilling with coolant and to remove most air pockets, remove thermostat and drill a 2.5mm hole anywhere around the raised section of the stat. .unless the stat already has a jiggle valve fitted.
If you really want to go to town with the engine out, there are two water drain plugs either side of the engine which when removed will drain all the old coolant out of the block .... with these removed you can also flush via the top hoses and, again, continue till water runs clean.
When refilling, once all the hoses, drains, thermostat, and rad switch are put back, keep the rear of the Alp raised to allow the air to travel towards the rear whilst refilling. It is not necessary to loosen the bleed nipple on the stat housing as the air passing through the small hole will travel along the upper hose and pass into the header tank via the small hose going from the upper hose to the header tank.
Refill slowly to allow the air to escape out of the header tank and through the small hole in the thermostat. once you are fairly full, bleed the rad via the bleed hose attached to the top of the rad RHS.
You will not get rid of all the air first time, but with the little hole in the stat, you will be pretty close.
Now .... this is important .... refill only with
Renault Coolant Type "D".Hope this is of help to you.
1990 GTA Atmo, 2003 Jaguar X type 2.5SE Auto, 2018 Kia Picanto GT-Line-S 1.25