Acme Impex Pty Ltd

Choose from complete range of Japanese and European range of cylinder heads bare of complete with cams & valves fitted as per OE specs. All the cylinder heads are manufactured by state of the art production facility dedicated to fastest turn around while ensuring the highest degree of quality. Each product goes through high quality check at various stages by specialists to confirm that the hardness, surface finish and casting qualities are up to the OE standards. All the cylinder heads are compatible with LPG and unleaded gasoline.

QUALITY CHECK POINTS ON CAST IRON AND ALLOY HEADS

 1 Pressure test head including oil gallery

2 Check the hardness

3 Check all gasket faces with gaskets and jig plates.

4 Check valve guide holes push rod holes, rocker pedestel holes, Air conditioning holes with jig plates.

5 Check cam bearing sizes and thrust face sizes.

6 Check diameter & depth of dowel locating holes, main head face.

7 Check size & depth of thread holes, rocker pedestal & manifold.

8 Check injector hole threads with injector & finish on injector hole gasket face.

9 Check glow plug hole threads & glow plug seats.

10 Remove all burrs from cylinder head casting, inlet & exhaust ports, grind all sharp edges from holes & machined areas.

11 Check pre com fits & pre com heights.

12 Check & surface grind all gasket faces as required.

13 Check valve guide fit in head.

14 Check valve guide protrusion to OE specs.

15 Check valve bore size to OE specs.

16 Check valve seat insert for correct fit.

17 Check inlet and exhaust valve heights to OE spec.

18 Check heads for cleaniness & protective coating.

19 Check valve lifter bore sizes in the head.

20 Check head for thickness.

21 Check spark plug holes (Gasoline heads).

22 Vaccume seat test.

23 Valve steam protrusion.

24 Heat tab fitted

TYPE TEST RATINGS

1 Pressure Test 80-100 psi

2 Crack Test Magna Flux or Randon Dye Check

3 Hardness HB 160 - 180 for alloy HB 125 A

4 Surface Finish 0.8 - 1.00mm Ra  alloy 1.00 - 1.50mm Ra

For more details please contact one of our staff.