Question about 1989 Mazda B-Series
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Posted on Jan 02, 2017
0.10 - 0.15mm inlet
0.18 - 0.23mm exhaust
but you must be carefull because the top of the valve seat becomes concave from wear, a feeler guage will not give the most accurate reading, hope i have been of some hel
Posted on May 14, 2009
SOURCE: Valve tappet adjustment
well, I can see ur message has been here for quite some time. Most probably you got the answer to ur request.
I just did the valve clearance on the engine of my SJ413 that has the 1000cc engine of an SJ410 :
When cold: 0.13mm Intake and 0.18mm Exhaust
Engine sounded well and worked fine after that.
Posted on Feb 07, 2009
SOURCE: Engine tappet clearances
According to http://freespace.virgin.net/tommy.sandham/databook.htm# Rocker Adjustment, the cold clearance is .008" intake/.018" exhaust in the non-GT 1500cc, and .012" intake/.022 exhaust on the GT. Sweet little car!!!
Posted on Mar 01, 2009
SOURCE: valve clearance
tappets dont squeak .. you want to hope the noise is coming from an ageing or loose fan belt .. if it is really coming from inside the valve cover then it could be a blocked oil passage that lubs the cam and its bearings ..this would soon cause a major engine failure .. other possibilities .. a bad bearing in the idler pully, water pump or alternator (a drop of oil on those can help identify the failing bearing) ... also at times the distributor can cause noise if its bearings run dry .. there is a really neat stethoscope like tool that allows you to listen to various parts and places to locat the problem .. but be careful playing around a running engine (no ties, long hair, necklaces .. if its the fan belt then it will likely make more noise as the engine is accelerating .. turning the lights on might increase or change the noise .. a leaky vacuum hose can cause a whistle like sound. .
Posted on Jul 13, 2009
When setting tappets, it has to be born inind that the valve stem wears an indentation into the face of the rocker. This prevents a really accurate tappet adjustment, so the customer is right again. If you do not posess a tappet setting dial gauge, a normal engineers dial gauge will do just as well. The procedure is the same as using your feeler gauge except that you set the dial gauge up on the cylinder head with the pointer resting on the head of the rocker. Press down fairly firmly on the rocker valve end and zero the gauge. Next lift up on the rocker and read off the clearance, from the gauge, Use a magnetic base to support your gauge and repeat the pocedure for each valve pair.
Posted on Mar 25, 2010
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