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Username Post: 74 Chevy Custom Deluxe        (Topic#245617)
mailman7 
Forum Newbie
Posts: 4

Reg: 07-14-10
07-14-10 03:24 PM - Post#1945315    

Hello, new here, hoping someone can help.
Went to replace fuel filter in line coming from pump to carb at the carb end. It came off roughly and something fell out in the weeds. Got under there and only found a small spring but did not find an old filter or anything else. I don't know which end of filter to put in hose now, or how the spring went in (before or after filter). I put filter in the way it fit best, and put the spring in the carb opening and closed it up, but it now does not start. Could use a diagram on how the filter and spring go in there, and also need to know if I'm missing anything else that might have fallen out when I first opened it up.
Original problem was that I had old bad gas in there, so it would run for awhile then die. It would start again and die in awhile, so I thought it would be the filter.
The new filter is wet with gas, so it must not be the pump.
Any ideas would be so appreciated! Thanks!

 
roger_27 
Very Senior Member
Posts: 1838
roger_27
Loc: Yo Mamaville, CA
Reg: 05-08-01
07-14-10 03:42 PM - Post#1945325    
    In response to mailman7

I just started a car that sat for 3 years. i replaced the filter, and poured some octane boost from autozone, and fuel system treatment.

then when I ran it all gone, I put a new filter again.


if the spring you are referring to is the little black spring with a rubber end on it, the spring is actually not needed. the purpsoe of it is to prevent a fire to ignite the fuel all the way back up to the gas tank. but the spring was actually invented and added to fuel filters some time in the 80s and I have NEVER had a problem with it removed.

with that in mind, the spring goes in in such a way that the incoming fuel will PUSH the spring to allow fuel to enter.

try pouring a little gas in the carb (or carb cleaner or anything that will get the engine going) and see if the pump just needs to be helped a little.



the filter should have 1 end open, and 1 end closed off. you need to put the filter in, in such a way that the fuel enters the open end, and is forced out the sides to get through to the carb.

hope this helps.
1980 C20 -- If it fits in a compact parking space, IT AINT A TRUCK!
1959 4 door Impala -- "You bought your dad that car? it looks like the Batmobile"
1977 Chrysler Cordoba -- It's a Mopar, but it's a nice looking Mopar!


Edited by roger_27 on 07-14-10 03:48 PM. Reason for edit: No reason given.

 
mailman7 
Forum Newbie
Posts: 4

Reg: 07-14-10
07-14-10 04:03 PM - Post#1945336    
    In response to roger_27

Thanks for the reply!
The spring has no rubber on it, just a plain metal spring about 3/4 of an inch long. I had put the filter on in the direction you said and tried it first without the spring, because I had not found it yet. When I found it, I put it next to the closed end of filter on the carb side. Going out now to try some gas in carb.

 
mailman7 
Forum Newbie
Posts: 4

Reg: 07-14-10
07-14-10 04:15 PM - Post#1945339    
    In response to mailman7

Ok, it started briefly with gas in the carb, several times, but would not stay running. Now I ran down the battery.
I don't think it even had a filter in it before. Did not find one when I pulled the truck back off of where it had been parked.
So do you think it needs the fuel pump?

 
roger_27 
Very Senior Member
Posts: 1838
roger_27
Loc: Yo Mamaville, CA
Reg: 05-08-01
07-14-10 05:43 PM - Post#1945387    
    In response to mailman7

well i guess the next question would be how long has this thing been sitting? the car i am working on sat for 3 year. i ran out of gas, and because thhe fuel pump was so old and not used, it ended up frying the already old and brittle pump on the inside.

fuel pumps have a ruber plate called the diaphragm, and it is very possible they can get ripped from 'trying too hard'

sounds to me like you could be better off jst replacing the fuel pump so that you know for a fact you're getting all the pressure possible up to the carb.
1980 C20 -- If it fits in a compact parking space, IT AINT A TRUCK!
1959 4 door Impala -- "You bought your dad that car? it looks like the Batmobile"
1977 Chrysler Cordoba -- It's a Mopar, but it's a nice looking Mopar!


Edited by roger_27 on 07-14-10 05:44 PM. Reason for edit: No reason given.

 
bowtieollie 
ChevyTalk Subject Matter Expert
Posts: 21124
bowtieollie
Loc: See the USA in your Chevr...
Reg: 12-06-99
07-14-10 06:22 PM - Post#1945409    
    In response to mailman7

Hi Mailman,

Very easy.


Put the filter with the open end towards the NUT - which screws into the carb.

The SPRING will be behind the nut....

Soooooooo - the spring goes into the carb FIRST, then the gas filter. With the CLOSED END of the filter facing the SPRING.


Now.... she will be happy!
Bowtieollie
Chevytalk.com Moderator


 
roger_27 
Very Senior Member
Posts: 1838
roger_27
Loc: Yo Mamaville, CA
Reg: 05-08-01
07-14-10 07:15 PM - Post#1945452    
    In response to bowtieollie

please come back with the results. i was trying to say what bowtieollie said. thanks bowtieollie!
1980 C20 -- If it fits in a compact parking space, IT AINT A TRUCK!
1959 4 door Impala -- "You bought your dad that car? it looks like the Batmobile"
1977 Chrysler Cordoba -- It's a Mopar, but it's a nice looking Mopar!


Edited by roger_27 on 07-14-10 07:19 PM. Reason for edit: No reason given.

 
mailman7 
Forum Newbie
Posts: 4

Reg: 07-14-10
07-14-10 09:38 PM - Post#1945513    
    In response to roger_27

Hi bowtieollie;
That's the way I put everything when I found the spring. It did not start until I put the gas in the carb though. Thanks for confirming that I had it the right way!
I will try to go get the pump tomorrow.
Thanks to all of you for the advice!

Oh, and it's only been sitting for about a month.

Edited by mailman7 on 07-14-10 09:40 PM. Reason for edit: No reason given.

 
gchemist 
Senior Chevytalk Moderator
Posts: 21902
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
07-15-10 06:17 AM - Post#1945590    
    In response to mailman7

Now drive it like you stole it! Welcome to the site.
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
roger_27 
Very Senior Member
Posts: 1838
roger_27
Loc: Yo Mamaville, CA
Reg: 05-08-01
07-15-10 07:01 AM - Post#1945611    
    In response to gchemist

Not sure how experienced you are, but when you remove the fuel pump you will see a rod slide down from the hole where the fuel pump is supposed to go. you will need to cover that in grease to make it sticky, and then you need to slide it back up with your hand. the grease should make it sticky enough to stay up. then you can put the fuel pump in easily.

I did it once without grease using a long skinny screwdriver, and while holding it up I would press the fuel pump in really fast. took me about an hour. it sucked. I will never do it again. lol.
1980 C20 -- If it fits in a compact parking space, IT AINT A TRUCK!
1959 4 door Impala -- "You bought your dad that car? it looks like the Batmobile"
1977 Chrysler Cordoba -- It's a Mopar, but it's a nice looking Mopar!


 
Vaughn 
"13th Year" Gold Supporting Member
Posts: 15446

Loc: Colorado Springs, CO
Reg: 08-08-04
07-15-10 09:54 AM - Post#1945677    
    In response to roger_27

That is what the top hole of the front mount at the base of the block next to the timing cover is for. Put an long bolt in there and tighten it finger tight while holding the fuel pump pushrod up, and the bolt will hold it in position. That bolt hole intersects the fuel pump pushrod inside the block. Remember to take that bolt out before starting the motor.

 
roger_27 
Very Senior Member
Posts: 1838
roger_27
Loc: Yo Mamaville, CA
Reg: 05-08-01
07-16-10 06:55 PM - Post#1946389    
    In response to Vaughn

mailman7 - did you get your problem figured out? please post your findings!
1980 C20 -- If it fits in a compact parking space, IT AINT A TRUCK!
1959 4 door Impala -- "You bought your dad that car? it looks like the Batmobile"
1977 Chrysler Cordoba -- It's a Mopar, but it's a nice looking Mopar!


 
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