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Car Forum / Pontiac / Pontiac Firebird / January 200779 Z28 pushrod dropped (how do I raise it?)
Hi - I am changing out my Z's fuel pump because near as I can tell it is bad, it would supply my Quadrajet with no gas at all. When I pulled the old pump off the push road dropped all the way down and I do not know how to raise it again to get the pump finger back underneath it. The autoparts store supplied me with a new pump, but I see it has only two connections, not three. Is this the wrong pump? I am guessing the missing connection is the return line to the tank? Any and all help is appreciated Thank-you > Hi - I am changing out my Z's fuel pump because near as I can tell it > is bad, it would supply my Quadrajet with no gas at all. When I pulled [quoted text clipped - 8 lines] > > Thank-you I just replaced my pump on my '85 305 Z-28. You may need to remove a plate that was under the pump to completely remove the rod. Once you get it out, put some grease on it to help hold it up in position while you replace the new pump. I didn't have too hard a time with mine. I did have a hard time removing that plate. it was stuck on hard. Anyway you should be able to just push it back up unless it got cocked and jammed. You may should replace the push rod too, while you have it apart? Take the new pump back and get the right pump, take the old one with you. AA Yep, it slid down and hit the plate, I had seen the plate there mounted with 2 bolts , but was not going to tear down any farther until I had advice and the correct pump. When remounting that plate, does it need any sealer on the side mounted to the block? The pump has it's own gasket of course, should I seal that gasket too? With what? When I was 19, (I'm 38 now) I used some type of sealer that came in a small container (with a indian head on it maybe?) I think the sealer was brown, and thin. Thanks for you help - Rich > > Hi - I am changing out my Z's fuel pump because near as I can tell it > > is bad, it would supply my Quadrajet with no gas at all. When I pulled [quoted text clipped - 20 lines] > > AA > Yep, it slid down and hit the plate, I had seen the plate there mounted > with 2 bolts , but was not going to tear down any farther until I had [quoted text clipped - 8 lines] > Thanks for you help - > Rich If I remember right I didn't use any extra sealer on the pump gasket. I think I did use some of that gasket tacking spray to hold it on so it wouldn't fall off while installing. I didn't replace the gasket on the block but I probably should have. Lucky it doesn't leak I guess! If I was going to do it again I would also replace the plate gasket. If yours doesn't have a gasket, maybe you should use some gasket sealer on the plate/block side. AA To get it back up I always used a paper clip bent to slid down under the bottom of it and get it up until I could push it all the way back up. Then as mentioned put a longer 3/8" bolt in the upper hole in the front of the block (after you remove the short one) finger tight just enough to hold it in place and don't forget to take it back out and reinstall original with some kind of sealer on it when done. Good Luck > Hi - I am changing out my Z's fuel pump because near as I can tell it > is bad, it would supply my Quadrajet with no gas at all. When I pulled [quoted text clipped - 8 lines] > > Thank-you > To get it back up I always used a paper clip bent to slid down under the > bottom of it and get it up until I could push it all the way back up. Then [quoted text clipped - 5 lines] > some kind of sealer on it when done. > Good Luck Yeah, that's how my Haynes manual said to do it. Anyway I had to remove the plate for mine since I was replacing the rod too while I was there. Instead of the bolt I just added a little grease to hold the rod up in position. The bolt would probably be better to make sure it doesn't slide down though. As usual I was looking for less bolt turning in the tight spots with headers, so for me the grease was easier. AA OK the pushrod and new pump are connected, I still have no gas. I have the line disconnected from the carb and it's pushing no fuel. Anybody have a theory besides the possible obvious - a plugged line. No sign of any fuel under the car, no sign of any fuel being drawn. > > To get it back up I always used a paper clip bent to slid down under the > > bottom of it and get it up until I could push it all the way back up. Then [quoted text clipped - 12 lines] > > AA > OK the pushrod and new pump are connected, I still have no gas. I have > the line disconnected from the carb and it's pushing no fuel. > > Anybody have a theory besides the possible obvious - a plugged line. If you have a pinhole in the suction line to the tank, the pump can suck air instead of fuel. If the hole is in the top (which they usually are), it won't leak fuel. > OK the pushrod and new pump are connected, I still have no gas. I have > the line disconnected from the carb and it's pushing no fuel. [quoted text clipped - 19 lines] >> >> AA You could always disconnect the inlet, turn the engine over and check for suction at the fuel pump. If it is working then check your lines. First, the obvious... is there gas in the tank? second, car is 29 years old replace ALL the rubber line in the system. There is usually a peice at the top of the tank to connect to the steel line. and there are peices at the frame rail mounted fuel filter if they had one in 1979. And replace the peice from frame rail to pump. There is a strainer sock inside the tank, that might be clogged. Water froze in line? it's 4 deg F where I am. >OK the pushrod and new pump are connected, I still have no gas. I have >the line disconnected from the carb and it's pushing no fuel. [quoted text clipped - 19 lines] >> >> AA Thank You, Randy Remove 333 from email address to reply. Replacing all the rubber is what I did originally, it was a obvious problem. Since then I have disconnected the pump from the tank and ran a line from it into a gas can. It still will not emit gas, so the trouble is not in the tank at this point. > First, the obvious... is there gas in the tank? > [quoted text clipped - 33 lines] > > Remove 333 from email address to reply.- Hide quoted text -- Show quoted text - > Replacing all the rubber is what I did originally, it was a obvious > problem. [quoted text clipped - 35 lines] >> >> Remove 333 from email address to reply.- Hide quoted text -- Show quoted text - Guess you didn't like my suggestion. Dumb question but does it run if you put gas in the carb ? Just making sure it does run and didn't lose a timing chain completely. As long as the cam is turning and the lobe is not wiped out on the fuel pump lobe on the cam, there is almost no explanation of why it won't pump from a can. Not being smart but are you sure you are hooked to the inlet on the pump ? Also are you sure the rod didn't drop back down and the pump went on anyway ? Did you do the bolt from the front method to reinstall ? if so did you take the long one back out ? if not maybe that is holding the rod in the fully extended position. > Replacing all the rubber is what I did originally, it was a obvious > problem. [quoted text clipped - 50 lines] >> Remove 333 from email address to reply.- Hide quoted text -- Show quoted >> text - The pump rod could be stuck, due to dirt or varnish. The pump you bought could be defective. The cam lobe could be worn off. Pull the pump back off, then pull off the cover plate. Check for free movement of the rod. Turn over the engine, by hand to be safe, and see how much travel the rod has. I forget what it should be , someone know offhand? With the pump off, work the lever by hand and feel for suction at the inlet. >Dumb question but does it run if you put gas in the carb ? Just making sure >it does run and didn't lose a timing chain completely. As long as the cam is [quoted text clipped - 60 lines] >>> Remove 333 from email address to reply.- Hide quoted text -- Show quoted >>> text - Thank You, Randy Remove 333 from email address to reply. |
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