I've been planning an engine bay refresh for a little while. If the bodywork was sub-par then I could at least make the most interesting part of the car look better IMO.



I started to hoard parts including service items

Magnatec 5W40 (oil viscosity has always been a topic of discussion amongst owners. Some say 5W30, some say 10W40 so I went with inbetween)
Oil filter
Magnetic sump plug
Engine flush
Spark Plugs (NGK BKR6E-11)
K&N Panel Filter (found this one new old stock)
K&N Recharge kit
8mm Ignition Leads from (https://www.ebay.co.uk/sch/i.html?_s....m3561.l161211)

Inlet Manifold Gasket x2 (BGA MG6500)
Rocker Cover Gaskets (Elring 658.220 & 658.980)
OEM PCV Grommet (E30113338A same as a MX5 NA/NB)
OEM Oil Cap (045310250A same as a MX5 NA/NB)
OEM Inlet Manifold O Ring x2 (K80113163B)
OEM Throttle Body Gasket (KL4713655}
OEM Idle Control Valve Gasket (K80113W89)

I also stocked up on various stainless hardware (obviously measuring the ones I need)

Stripping it down 'should' be quite easy. Having only removed the airbox prior I was keen to learn more about this particular engine.



I started off with removing the airbox,intake hose and disconnecting the solenoid plugs and hoses on the side of the airbox. The inlet manifold has x8 8mm (13mm head) bolts and x4 8mm nuts either end of the flange.

Followed by the ignition leads, PCV breathers, fuel rail hoses and plug, brake servo hose, idle control valve and the associated solenoid plugs around the back of the throttle body.

There's a Y joiner to the left side of the inlet manifold, these vacuum lines goto each VRIS actuator and solenoid. While disconnecting this I ended up breaking the one way valve. I cover more of this in the Youtube video.

There's a bracket brace at the back of the inlet manifold, which was the last thing to remove.



Youtube video can be seen here

https://www.youtube.com/watch?v=emkthVWC_6w