Question about Fiat Strada
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Posted on Jan 02, 2017
SOURCE: need assitance for vw repair
You are probably right, the clearance between the pistons and the valves is very tight on the 16 valve engines. one of the valves may have hit a piston., or even worse bent a rod or damaged the crank.
I would run a compression check, or leakdown check before pulling the head. I have a service manual for 90-93 Passats w/ 9A 16 valve engines. the manual says compression should be 145-189 psi. limit 109 psi w/ 44 psi max difference between cyclinders.
On these engines you also need to check that the timing on both cams is ok.
Posted on Jun 21, 2009
This engine utilizes shims to set proper clearances, you will need a micrometer, valve clearance adjustment tool set for shimmed lifters,small magnetic arm, appropriate shim selecting charts (manufacturer will have this if you can get the nec. measurements).
Measure thickness of shims removed (using micrometer) and use this formula where T=Thickness of old shim; A=Valve clearance measured; N=Thickness of new shim required.
Intake valves: N = T + (A - 0.02 mm (0.008 in.)) Exh. valves: N = T + (A - 0.25 mm (0.010 in.))
Then you need to find shims as close as possible to the calculated values.
Valve clearances (cold) are as follows: Intake 0.15 - 0.25 mm (0.006 - 0.010 in.) Exhaust 0.20 - 0.30 mm (0.008 - 0.012 in.)
Note, if you are not familiar with precision measuring using a micrometer, this may be better left to a trained tech. These are high revving little power plants and you don't want a problem at 8K rpm.
Posted on Aug 06, 2009
SOURCE: i need the diagram that
THE BEST THING TO DO IS GO TO AUTO ZONE OR ANY PARTS STORE AND PURCHASE A MANUEL FOR THAT VIHICLE COSTS ABOUT 28 DOLLARS WORTH THE WEIGHT IN GOLD
Posted on Oct 25, 2010
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