double lip oil seals cross reference

On overhead-camshaft engines, check the clearance of each valve when the lobe of its cam is pointing directly away from it.double lip oil seals cross reference.
On an OHC engine with bucket tappets, measure between the tappet and the bottom of the cam lobe. On some Vauxhall overhead-cam engines you can adjust the shims to a limited extent by screwing up a wedge over them, through a small hole. Turn the screw with an Allen key; if its full travel does not alter the gap enough, the shim must be replaced in a garage.
On an OHC engine with bucket tappets, measure between the tappet and the bottom of the cam lobe.
On some Vauxhall overhead-cam engines you can adjust the shims to a limited extent by screwing up a wedge over them, through a small hole. Turn the screw with an Allen key; if its full travel does not alter the gap enough, the shim must be replaced in a garage.
Turn the crankshaft only in its normal direction of rotation, using a spanner or socket wrench on the crankshaft-pulley, to move the camshaft.
The valves come into the checking position in a jumbled order – do not mix up inlet and exhaust clearances.
On tappets with shims, check the clearance by inserting the blade or blades of a feeler gauge between the back of the cam and the tappet.
The correct blade should be a close sliding fit in the gap. If it refuses to go in, or feels loose, try other blades to find what the gap actually is, and whether it is within the allowable limit. Any tappet clearance outside the limit should be adjusted by a garage.double lip oil seals cross reference.
However, on certain Vauxhall engines you can make small adjustments by means of screws which slide wedges under the shims: these screws are adjusted with an Allen key.
On an indirect overhead camshaft with finger-type followers (see right), check the clearance in the same way between the back of the cam and the follower.
Adjust the follower, if necessary, by screwing its pivot post up or down.valve seal.
The pivot post has a locknut around its base. Hold the post with a spanner while you slacken the locknut, then turn the post anti-clockwise to reduce the clearance and clockwise to increase it.
When the gap is correct, hold the post steady while tightening the locknut, then check the clearance.
Turn the crankshaft pulley until the timing marks line up to show TDC position; the crankshaft turns twice for every turn of the camshaft. Measure and adjust the clearence when the rocker arm pad is on the bottom of the cam.
Turn the crankshaft pulley until the timing marks line up to show TDC position; the crankshaft turns twice for every turn of the camshaft.
Measure and adjust the clearence when the rocker arm pad is on the bottom of the cam.viton seal.
Keep turning the crankshaft until you have checked all the valves.double lip oil seals cross reference.