Reply With Quotemore likely is the CAT or the heat shield above the CAT.......
Engine rattle...
Lately at high RPM's I have been hearing a slight rattle which sounds to me like valves rattling, anyone here experience this in their 99?
I currently have about 54K on the engine and am using Mobil 1 10w 30.
All comments and suggestions appreciated.
Last edited by Billy Blaze; 02-28-2006 at 08:31 AM. Reason: blah
99 Miata Black
more likely is the CAT or the heat shield above the CAT.......
92 Sunny 214k, 95 Dimples, 93 James Bondo, 92 SM (Speedie Jr)
Shelley, Apex, Tigger, Max, Baby(cats), Fluffy, Spot, and Peanut (mini horses), Cinnamon & Bitsy(dawgs)
MSR #1001, SCCA #208822Let's go racin'
I have the CAT/ heat shield 'metal buzz' that occurs in the upper RPM range of 4th gear only. Is this similar?Originally Posted by Billy Blaze
My shifter knob makes a little buzz from 4000 to 5500 rpm...
I was relieved when I realized it wasn't coming from under the hood!
Might be, I would be pleasantly suprised if that is just it.
Sure sounds internal though.
I will have Gary take a listen next month, unless i see one of you guys this Sunday at the P102 school.
99 Miata Black
Umm kind of shounds like pre-ignition to me. Try seafoaming it along with some fuel system cleaner and see if it goes away.
"Pain is inevitable, suffering is optional." Haruki Murakami
Now that you bring that up, i just Seafoam'd the car about a month ago and did the Seafoam oil and gas treatment a couple of months ago...but I always fuel the car with super since it's a little cry baby on anything but super unleaded.
I have ofetn wondered why other people who own the 99's can run regular and my car knocks like crazy on it.
Could the timing get off on a VT car? and if so how would i go about fixing it?
any suggestions are welcome....and thanks
99 Miata Black
Hmm... my bad rod bearings sounded like a "rattling" noise above 3000rpm...
Could be anything, though. We'll look at it this weekend at AX102.
Iain
"We don't stop playing because we grow old, we grow old because we stop playing." - George Bernard Shaw
Cool I will be there regardless of whether I get in or not.
99 Miata Black
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