Last time out at SMPS I noticed some rattling coming down the hill towards the 180 deg turn. At this point, I was basically on redline on 3rd, because I didn't feel like changing up to 4th just to change back again.. (new track). I was somewhere between 6500-6800 rpm for a while and had plenty of time to note the rattling.
Apart from the rattling at 6500 though, the car starts, runs well, etc.. perhaps uses a little oil, but I can't tell with limited use. Exhaust is clean, no smoke, etc. It does like to snap crackle and pop on over run if that's any extra info. Engine sounds / runs great (if a little agricultural) at all other revs.
Wasn't too sure what to make of it, so took it to Mania for David to have a look at. it didn't seem to rattle when we revved it, but I didn't rev it to 6+ as it wasn't really warm enough.
Took the car down old pac and the fwy yesterday so I could have a proper listen through different gears, and found that the rattling happens on both 2 and 3 at rpm past 6000ish. Obviously, I couldn't redline it on 4th, but I assume it would be the same. I popped it neutral while it was running and revved and rattling comes on, again at 6000+ rpm. I forgot to try the same thing with the clutch in.
I won't get a chance to take it to mania before end Jan, as we will both be away, so hoping I can get a handle on this prior.
Any ideas? I really don't want this engine to go boom. Hamx5ter will be left by himself in his hutch as I cannot really afford another heart transplant.
Deen
also brought me to idler / tensioner (didn't know they were two different things!), and valve float. I'll go have a look at the tensioner / idler for play, and try check the heat-shield, but I think looking at the cylinder compression / leakage, etc. is a bit beyond my capabilities I might have to leave it to Mania to have a look at the engine itself when they re-open.
