Engine: Adjustments Jaguar XKR I рестайлинг

Valve Clearance Adjustment - General Procedures

Special Tools Tool Illustration Tool Name Tool Number Tappet hold down tool 303-540 Fan nozzle, air gun 303-590

Scheme 23

Scheme 24

Scheme 25

Scheme 26

1. Remove the left-hand valve cover. Refer to «Valve Cover LH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover LH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .
2. Remove the right-hand valve cover. Refer to «Valve Cover RH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover RH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .
3. Use a cloth to wipe away as much oil as possible from the tappet and shim.
4. Rotate the engine clockwise to position the camshaft lobe away from the shim surface.
5. Install the base plate of the valve clearance adjusting tool to the relevant cylinder head using the bolts supplied. Secure the tool to the valve cover retaining holes.
6. Install the attachment of the tool to the base plate to remove the relevant shims. Adjust the fingers of the attachment to the highest position. Install the attachment to the base plate. Tighten the retaining screws to secure the attachment to the base plate.
7. Position the fingers on the outer edges of the tappet. Make sure the recessed step on each finger locates on the edge of the tappet.
8. Tighten the special tool to compress the valve springs.
9. Remove, clean and measure the shim. Surround the immediate working area with a cloth to retain any loose shims displaced by the compressed air. Use special tool aimed at the edge of the shim to lift it from the tappet. Remove the shim from each tappet, noting the position of each one.
10. Use the following formula to calculate the required shim thickness. Original shim thickness + measured shim clearance - desired clearance = required shim thickness.
11. Apply a light coat of engine oil to the replacement shim(s) and install.
12. Loosen the special tool to allow the valve springs to return to their normal position.
13. Using the feeler gauge set, measure the clearance between the camshaft and the shim surface. Record and check the readings. Refer to «Valve Clearance Check»(ref-311051-S24899057132009032300000) .
14. When the valve clearance is correct, remove the attachment from the base plate and repeat the procedure for the following two valves to be adjusted.
15. Install the right-hand valve cover. Refer to «Valve Cover RH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover RH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .
16. Install the left-hand valve cover. Refer to «Valve Cover LH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover LH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .

Scheme 27

1. Remove the left-hand valve cover. Refer to «Valve Cover LH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover LH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .
2. Remove the right-hand valve cover. Refer to «Valve Cover RH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover RH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .
3. Rotate the engine clockwise to position the camshaft lobe away from the shim surface.
4. Using the feeler gauge set, measure the clearance between the camshaft and the shim surface. Record and check the readings. Refer to «Valve Clearance Check»(ref-311051-S24899057132009032300000) . Adjust the clearances as necessary.
5. Install the right-hand valve cover. Refer to «Valve Cover RH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover RH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .
6. Install the left-hand valve cover. Refer to «Valve Cover LH - VIN Range: G00442->G45170»(ref-311051-S09723500692009032300000) . See «Valve Cover LH - VIN Range: G45171->G99999»(ref-311051-S09723500692009032300000) .