Quad 4 -  Valves making noise

Have a flashing light? Gauges acting funny? Bad idle? Get your problems solved...
Post Reply
Guest

Quad 4 -  Valves making noise

Post by Guest »

As you might already know, I replaced the Quad 4 in my GTZ about 2 weeks ago. The new engine is a used one with 60000 Kilometers. Meanwhile it runs great, idles nicely and runs very smooth. One problem occurs though from time to time. The valves start ticking after I rev up the engine. That ticking sound disappears and comes back again. I`m running on 10W40 oil, could that be the problem. A Quad 4 with such low mileage shouldn`t have valve problems already.

Also my catalytic converter rattles quite a bit. I know that my other two GTZ`s had that same rattle, messes up the nice exhaust note a bit.


rweatherford
Registered User
Posts: 720
Joined: Wed Apr 25, 2001 5:39 pm
Location: Shelbina, MO
Contact:

Quad 4 -  Valves making noise

Post by rweatherford »

I would guess it's lifters are collapsing or getting air in them.


Rex Weatherford
92 Beretta GTZ Quad4 Turbo / 5-speed (sold)
Best 1/4 ET =  13.523 @ 105.16 mph

07 Mazda 5 Black on Black (it's slow)

User avatar
Racing_Rush
Registered User
Posts: 63
Joined: Tue Jan 18, 2005 11:49 pm
Location: Edmonton, Alberta, Canada
Contact:

Quad 4 -  Valves making noise

Post by Racing_Rush »

That sucks is it still under warrenty?





1991 Cavalier Z24- Racing seats, MSD wires, relocated MSD coils, 2.5" exhaust, ported exhaust manifolds, high volume oil pump, poly grafite front end, 92+ brake upgrade, drilled and slotted rotors, 1.5" lowering, 17" Klasse wheels...

Future Plans: 18's, paint, rear discs, more horsepower...
rweatherford
Registered User
Posts: 720
Joined: Wed Apr 25, 2001 5:39 pm
Location: Shelbina, MO
Contact:

Quad 4 -  Valves making noise

Post by rweatherford »

I'm not sure if the oil is a problem (probably not) but there is really no reason for running over 5W-30 if it is not over 80 degrees all the time.  The manual will say 5W-30 at all temps.  I have run from 20W-50 to 5W-30 with the turbo with no issues.  My oil temp can get pretty dang high too.


Rex Weatherford
92 Beretta GTZ Quad4 Turbo / 5-speed (sold)
Best 1/4 ET =  13.523 @ 105.16 mph

07 Mazda 5 Black on Black (it's slow)

93GTZguy
Registered User
Posts: 50
Joined: Tue Mar 18, 2003 8:37 pm
Location: Greensboro, NC
Contact:

Quad 4 -  Valves making noise

Post by 93GTZguy »

I been running 10W30 in my GTZ for the almost 3 years i've had it...im afraid to change to 5w30 now


ErErnest - 1993 Beretta GTZ 5 Speed HO Quad 4

Slaying The Dragon
Post Reply