I have been asking for help on my 67 coupe. I finally got the car grounded correctly and when I went to start it, it almost turned over. However, I figured out that no gas was getting to the carburator. I decided to get a new fuel pump to see if that was the problem plus the stock style mechanical ones are relatively cheap to replace. Still no gas coming.....so I looked at the fuel line from the engine bay to the tank and found a small pinch in the line. I just fixed that, and I now have gas flow coming from the back to the front however, still doesn't seem like any gas is getting up to the carb, or maybe the fuel pump isn't pulling in any gas. Any ideas? Something I did wrong putting the fuel pump in? The car almost starts up when I pour some gas in the carb or use starter fluid, but then quits. As far as I can tell no gas is coming from the fuel line to the pump to the carb...
fuel pump?
- Thread starter ras50gt
- Start date
jcode68
Active Member
The mechanical fuel pumps are hard to mess up as far as mounting them. It would have been obvious if the pump shaft was not engaging the eccentric properly when you tightened the bolts down. My first guess is you may have the lines crossed. Make sure the line from the tank goes to the inlet side. If this checks out, I would disconnect the line running from the out port of the pump and turn the car over and see if you are getting anything (make sure you have a bucket ;-) If you are not getting fuel out of the pump, you need to ensure a)the pump is good (sometimes parts end up DOA) or b)the fuel pump eccentric is properly mounted to the front of the cam timing gear. There is a dowel pin which keeps these from spinning and I suppose it is possible this could be disengaged, but haven't heard of this happening myself. Let us know what you find out.
I'm getting fuel from the tank to the inlet side of the fuel pump. No fuel goes from the out port line to the carb. I tried disconnecting the pipe from the fuel pump to carb and no fuel comes out the pump. You think I got a "bad" new fuel pump? I wouldn't know what else it could be either?
ANYONE INTERESTED IN BUYING A 1967 COUPE?? It's starting to piss me off, lol.
ANYONE INTERESTED IN BUYING A 1967 COUPE?? It's starting to piss me off, lol.
jcode68
Active Member
Well, here is an OEM style fuel pump:
The line from the tank goes on the low pressure side of the pump - in the pic above this is the slide on connection, not the threaded connection.
If you are sure the lines are properly connected, then it can only be 2 things: 1)bad pump or 2)fuel pump eccentric problem as I stated above. Troubleshooting that requires removing the water pump, crankshaft pulley and balancer and then front timing cover. The only other thought I had was the pump may need to be primed, but I don't think this is usually the case.
The line from the tank goes on the low pressure side of the pump - in the pic above this is the slide on connection, not the threaded connection.
If you are sure the lines are properly connected, then it can only be 2 things: 1)bad pump or 2)fuel pump eccentric problem as I stated above. Troubleshooting that requires removing the water pump, crankshaft pulley and balancer and then front timing cover. The only other thought I had was the pump may need to be primed, but I don't think this is usually the case.
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The connections are right. No fuel is coming out of the output when the line is disconnected. With what your saying, It has to be one of those two things. The fuel pump is brand new, wouldn't it need to be primed? How do I do that? I guess I could try to get another fuel pump....... If it is the other issue, I'm really not looking forward to removing everything...
jcode68
Active Member
If you disconnect the hose coming from the tank, does fuel flow freely or does it dribble? If it dribbles, try removing your gas cap to see if it helps. Assuming you have good flow to the pump, I don't think you would need to prime the pump. Not exactly sure how you would do this, but maybe someone else has some input here. Pumps are pretty cheap, so I would try another one before tearing into the timing cover.
I haven't been able to work on the car in the last few days. I talked to a few people who work on cars and have got mixed opinions. Some say that I for sure put the pump in wrong, or I was unlucky and got a bad new pump, and then one other person thought that maybe something is wrong with the essentric setup on the cam. If for some reason there is something wrong with the setup could I just try an electric pump? Also, another guy told me that some of those mechanical fuel pumps had a rod that you had to put in with the pump but he wasn't sure if fords had that, any ideas? I hate to have to take everything apart and get under the timing cover, but that may be what has to be done...
D.Hearne said:
been there done that. i can assure all the naysayers that it is entirely possible to get it in above the eccentric.
is this a new engine you've put into the car? if so what did it come out of? 86 and newer will not have an eccentric for the fuel pump. other earlier engines with throttle body fuel injection won't have it either. if the engine is newer than 83 i'd be wondering about the eccentric. also if the engine has been rebuilt by someone previously i would wonder if they reinstalled it as well.
jcode68
Active Member
Checking the fuel pump lever installation is simple and will take you less than 10 minutes to verify if this is the problem. Odds are that this is your problem. Regarding an electric fueld pump, a)it will cost alot more than mechanical, b)they require a fuel regulator which you would also need to purchase and wire up, and c)they are noisy as hell. That said, there are benefits, but doesn't seem like any of them would apply to your situation.
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