Miata - Noisy HLAs or Knocking?

Been hearing this every once in a while. It was particularly bad at the last autocross event. It's done it with the timing advanced and normal. I use 89 octane gasoline right now.

Category:

Howto & Style

Tags:

• miata
• knock
• hla

[sonomama82]

So what did it end up being?

[bnfergus]

@sonomama82 HLAs, just needed an oil change! 

[DoubleGabriel]

yea i use 10-40 & it goes away starts coming back after 3,000 miles, it's an extra reminder to change the oil

[bnfergus]

Actually that's what it turned out to be. Change the oil reminder. I change and it goes away. Nice.

[Fariascesar1]

I have this same problem. I want to get it fixed, if I drive it to the shop which is 30 mins away, would it damage anything else? I also have a shit ton of smoke coming out my exhaust. Never had a problem like this

[redheadlol]

Its called a lifter. thats what makeing the noise

[pakijr]

@bnfergus Yeah, I have a 97 miata and same thing was going on. Only, mine is burning...

[mcl311]

My Miata makes the same noise. Glad its nothing serious. I was worried.

[monstermiataman]

@creativepenis i love the haynes manual but it does lack a few things

[peedub8]

Try rotella T6 synthetic oil.

[pdilly1982]

A quart of Lucas oil additive with your favorite brand/weight of oil should do the trick. As you near your next oil change (i.e. when the oil and additive begin to break down) it will slowly return, but that's gonna happen with pretty much anything you do to these HLAs.

[mobious67]

thats the lifters not having thick enough oil

or atleast thats what ive always been told