Hi there. I just purchased a 2007 2.0 mx5 NC. A little story behind it. It was for sale as spares or repairs. I went to see it. The car itself is solid. Sills original and rust / hole free and subframe is solid. Couple of grubby bits on the wings. Nothing bad. Alloys aren’t the best. It has been lo…

FYI…I would have DEFINITELY bought that car. It would be criminal to send it to the scrap yard. Best of luck with it. :+1:

With regards point 2, the NC has solid cam followers, not hydraulic ones, so if one is “soft” then it probably points to a valve spring issue rather than a follower issue.

Thank you! We thought they were hydraulic. Would this be the cause of the rattle/knocking noise?

Just an update. Engine is dead. Cylinder 2 rod bearing is shot. When the piston is at the bottom, there is A LOT of play. At TDC, it felt okay. Piston 1 at TDC has play, piston 3 at bottom has play but not as much as 2. Piston 4 is solid. It has clearly been run for to long on old oil. Might have to…

Well that is a shame. In your position i would be dismayed but not disheartened. You have options depending on your budget/enthusiasm etc. My first engine rebuild was a V8 Rover, i knew nothing about engines at the time but as i got the car cheap i thought, sod it what’s the worst that can happen! I…

I’m 33 and still live with my parents. We have plenty of space but where the car is under a carport, it takes up a lot of space which makes it difficult for my mum to go out for a smoke without getting rained on. This is why we gave up with classic cars. My mum didn’t agree with it. So in the last …

Yeah i feel your pain. Having said that, i have a set of 40 year old ramps, some new axle stands and any number of bits of wood. I would be inside that engine just for the hell of it. You may be surprised at how easy a job like that can be, and conversely, how many new swear words you learn. …

If you need inspiration, have a look at this topic… [image] Niseko 2.0 Project ish Readers Rides Hi everyone. So after introducing day in a chat. Today I went back to my mx5 and started where I was left before. To take an engine out [IMG_20240813_094238] So after long…

It needs a complete engine rebuild, more than likely a new crankshaft too.

Can we assume that you have the sump off at this stage. If that’s the case, have you looked at the big end shells.

Top end knocking coming from N2 cylinder when revving. 2007 2.0 NC mx5 (UK)

Technical Area Engine, Transmission, Exhaust etc

Roadster_Robbie 23 June 2025 19:07 10

If you need inspiration, have a look at this topic…