[bigrig91]

I replaced a rocker cover gasket a little while ago on my suzi and noticed that there are 6 or 8 or something phillips head screws which i think are tappet adjustments???? A few of these were loose like finger tight, could that be the reason my car sounds like a diesel...???

[gypsy]

there not the adjusters but if they are loose yes they will make it sound like a diesel

[Saam]

grab a workshop manual and some feeler gauges the 8 valve motors are easy.

http://auszookers.com/index.php?name=Downloads&c=15

samurai FSM should have the info in it ??

[Benz]

my jimny sounds a bit like a diesel...

may my tappets need re-setting?

[MART]

Those screws hold the rocker shaft in position and also keep the oil in the rocker shaft which lubricate the rocker arms , if they are loose or missing you will get poor oil flow to the rocker arms and if missing flow like a fountain , this would not cause any internal noise , it will be poor valve stem , rocker arm clearance , best adjusted when the engine is slightly warm , Cheers Paul.