- My model of MX-5 is: NB 1.8__
- I’m based near: Lincoln__
- I’m looking for technical help or recommendations on: Adjusting the cam gap. __
I hope everyone is safe and well and enjoying any good weather.
I am in the process of changing my timing belt and while I had the cam cover off I thought I’d take the opportunity to check the cam gaps. What I’ve found is that the gaps are out of spec for cylinders #1 and#4.
The gaps are too small on all eight valves.
0.152+/-mm on the inlets, 0.254+/-mm on the exhaust side.
In your opinion is this likely to cause excessive ticking noise from the engine? It’s always sounded a bit “tappety”. (145k miles).
Also, what would I expect to notice, if anything, with these gaps being too small?
Thanks for your patience so far.
From what I’ve read, I might be able to buy replacement shims to enlarge the gaps at some point but this will involve removing the cams so I’m likely to tackle this after the summer.
In the short term what do you guys suggest.
I have also read several threads that recommend using an engine flush (Wynn’s?) followed by an oil change. My only experience of an engine flush was on an old MK1 XR2 where I used Redex. The car never ran correctly again so I’m quite nervous about using flushes.
On relatively high mileage engines like the one in my car would a flush be likely to remove settled deposits and cause running problems?
I hope you guys don’t mind sharing your thoughts, opinions and experiences.