Wash all parts thoroughly with clean petrol
and a fine paintbrush. If possible replace the diaphragm, valves, oil seal, top
gasket and mounting gaskets.The new parts are supplied together in a pump
overhaul kit. It is false economy to renew just one part of the pump, unless
the other parts are relatively new.auto oil seals.On AC-Delco pumps, give the diaphragm a quarter turn to release the
T-shaped end of its link from the slot in the lever.double lip auto oil seals Easy use.
On AC-Delco pumps, give the diaphragm a quarter turn to release the T-shaped end of its link from the slot in the lever.First refit the oil seal, if renewing it. On an SU, press it into place and lightly tap the cup down squarely on top of it, using a piece of wood or a screwdriver handle so as not to damage it.Drop the main diaphragm spring into place.
Fit the diaphragm link carefully through the oil seal so as not to damage the fine edge.
Reconnect and refit the lever, remembering to insert the idling spring. Fit the valves back into the body of the pump.If necessary, use a punch to tap out the pivot pin on an SU pump lever to free it from the diaphragm link. Pull the lever out as you remove the pin.If necessary, use a punch to tap out the pivot pin on an SU pump lever to free it from the diaphragm link.double lip auto oil seals Easy use.
Pull the lever out as you remove the pin.On the SU there is a ridge roundthe edge of the valve which must fit pump exactly against a ridge surrounding it on the body. The wide inlet valve must lie evenly on its seating without puckering.valve oil seals.
Lift up the lever so that the diaphragm sits flat on the body. Make sure it is accurately in place.Certain pumps have an oil seal, which fits under the diaphragm and keeps oil off it. Do not remove it unless you have a replacement, as taking it out will probably destroy it.The seal on the SU is held in place by a steel cup above it. Hook this out with a screwdriver and pull the seal. If you clean the ump with the seal in place, use only clean petrol.
Hook out the cup with a screwdriver.auto oil seals. Set the top half of the body on it so that the marks you made earlier are in line.Keep holding the lever while you screw the body together.Tighten the screws gradually in sequence, each screw followed by the one opposite it.This is impossible with the SU pump, where three of the six screws hold the top on.Fit these three long screws in loosely, but tighten the others – which are short ones – first.Then fit the top, with its gasket and with the outlet pointing the right way. car oil seals.Screw the top on.Check the action of the pump by hand (See Checking a mechanical fuel pump). Then refit it to the car and test it again.double lip auto oil seals Easy use.
On AC-Delco pumps, give the diaphragm a quarter turn to release the T-shaped end of its link from the slot in the lever.First refit the oil seal, if renewing it. On an SU, press it into place and lightly tap the cup down squarely on top of it, using a piece of wood or a screwdriver handle so as not to damage it.Drop the main diaphragm spring into place.
Fit the diaphragm link carefully through the oil seal so as not to damage the fine edge.
Reconnect and refit the lever, remembering to insert the idling spring. Fit the valves back into the body of the pump.If necessary, use a punch to tap out the pivot pin on an SU pump lever to free it from the diaphragm link. Pull the lever out as you remove the pin.If necessary, use a punch to tap out the pivot pin on an SU pump lever to free it from the diaphragm link.double lip auto oil seals Easy use.
Pull the lever out as you remove the pin.On the SU there is a ridge roundthe edge of the valve which must fit pump exactly against a ridge surrounding it on the body. The wide inlet valve must lie evenly on its seating without puckering.valve oil seals.
Lift up the lever so that the diaphragm sits flat on the body. Make sure it is accurately in place.Certain pumps have an oil seal, which fits under the diaphragm and keeps oil off it. Do not remove it unless you have a replacement, as taking it out will probably destroy it.The seal on the SU is held in place by a steel cup above it. Hook this out with a screwdriver and pull the seal. If you clean the ump with the seal in place, use only clean petrol.
Hook out the cup with a screwdriver.auto oil seals. Set the top half of the body on it so that the marks you made earlier are in line.Keep holding the lever while you screw the body together.Tighten the screws gradually in sequence, each screw followed by the one opposite it.This is impossible with the SU pump, where three of the six screws hold the top on.Fit these three long screws in loosely, but tighten the others – which are short ones – first.Then fit the top, with its gasket and with the outlet pointing the right way. car oil seals.Screw the top on.Check the action of the pump by hand (See Checking a mechanical fuel pump). Then refit it to the car and test it again.double lip auto oil seals Easy use.
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