Weekend updates
Changed exhaust manifold gasket as could hear it blowing when running. Have been dreading this as it looked tight and imagined the engine would need to come off the mounts and be a bit of a carry on.
However the kangoo scuttle fully unbolts so got that off, and that makes loads of room compared to megane, allowing the turbo to come straight up and off.
45 mins later its stripped
Found the issue straight away, wrong exhaust manifold gasket fitted. Also found a k nut had snapped in half that was holding the turbo to the manifold, bizarre.
Megane gasket on the right, assume the one on the left is 172?
Piss poor fit, barely covers the edge of the manifold.
Megane one fits much better.
Whilst apart fitted a nimbus heatshield. Should have done this before fitting engine, as abs block was exposed. Will hopefully reflect a fait bit of heat.
Fitted it all back together and then flushed the coolant out as it had gone a bit rusty from sediment in the block. Took a fair bit of flushing/backflushing to get the water to run clear. Fitted a genuine Renault thermostat whilst apart as noticed stat was weak and was not getting up to temp fully and lingering around 75/78deg on a run.
Fresh type d
Temp gauge goes up to 2nd mark and sits rock solid now. Oil temps better when cruising too, 80deg instead of low 70s.
Next job was intercooler upgrade. I had previously got the tube and fin intercooler dirt cheap off a mate to mock it up. However it did not look great when driving - i noticed charge temps would shoot up 5deg or so higher than ambient temp straight away on low boost.
Tube and fin as fitted below, looks a bit shady cant imagine it being great on high boost.
As planning on running a fair bit of boost, i upgraded to a chinese bar and plate intercooler. Bar and plate always cools the charge really well compared to tube and fin. I run the same bar and plate intercooler on my Extra van, and 28lbs of boost the charge temps are always great, just above ambient.
Fitted straight on as basically the same, no mods required.
On road test had torque hooked up to the obd, and noted the charge temps did not move above ambient on a quick boost up to 18psi, so noticeable improvement, should work good when mapped.
Thanks for reading!!