![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Oil Leak....fuel pump??
I only seem to get leaks when I use the freeway. The longer I drive the more it leaks. (I know duh) Can that still be the fuel pump?
Also, anyone ever have their starter solenoid just break? I'm missing a chunk out of my starter solenoid. Thank you, Heath
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
![]() |
![]() |
![]() |
#2 |
Registered User
![]() Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
|
Re: Oil Leak....fuel pump??
it may be a sign of the fuel pump diaphram starting to go. As far as the solenoid, when the cover hold down screws are over tightened they will sometimes get too hot and crack. Once cracked....
__________________
1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Re: Oil Leak....fuel pump??
Thanks Vince! I found a some gas under the truck the last time I started it as well. I but I have not been able to get to leak again. Guess I really do need to change the fuel pump.
In regards to the starter. Should I replace it? Or, is it OK as long as it works?
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Jun 2011
Location: Taylorsville, Georgia
Posts: 482
|
Re: Oil Leak....fuel pump??
I've discovered you get better mpg when the gas makes it to the carb! Lol Yeah, probably diaphragm
Posted via Mobile Device |
![]() |
![]() |
![]() |
#5 |
Registered User
![]() Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
|
Re: Oil Leak....fuel pump??
have you changed a fuel pump on it before? If not, don't forget the bolt to hold the pin in place. It saves you frustration.
I had a solenoid that had a cracked rear cover. I didn't replace it because it kept starting. Of course it failed when I was away from home. Sooooo.... a cheap fix could save you frustration. The one I ended up installing was a super duper (i hope) one from Autozone. It was $25 and about 30 minutes to change with washing and sealing and all.....
__________________
1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 |
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Re: Oil Leak....fuel pump??
Thanks guys!
Vince the fuel pump was $30 not your starter. LOL
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
![]() |
![]() |
![]() |
#7 |
Registered User
![]() Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
|
Re: Oil Leak....fuel pump??
The solenoid was $25. If you have the original type starter.
The fuel pump for my Olds is about the same if I go to Autozone. Best of luck and Merry Christmas....early present to yourself?
__________________
1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 |
![]() |
![]() |
![]() |
#8 | |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Re: Oil Leak....fuel pump??
Quote:
I have not changed it before. BUT I have been warned by nice guys like you. And unfortunately my block's top bolt does not go all the way through. I saw a guy take a hacksaw blade and bend it and use that to hold the rod in place. Merry Christmas to you as well!!!
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
|
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
|
Re: Oil Leak....fuel pump??
You can use wheel bearing grease on the fuel pump push rod (on a cold engine) and it will hold the rod up quite well until you get the pump arm under it. You said it (the engine) leaks -where is it leaking from? What makes you think it is the fuel pump? If you don't have a proper crankcase vent system or a bad pcv you could be creating enough pressure on extended runs to force the oil out of valve cover gaskets for example. Does your oil have a gas smell to it? Sounds like you need to do more diagnosis before you start throwing parts on it.
__________________
1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
![]() |
![]() |
![]() |
#10 |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Re: Oil Leak....fuel pump??
I'm getting oil spray from the lower passenger side of the motor. It's leaving a spray on the front of the motor and valve cover. Plus it leaked some gas when I fired it up after sitting for a week. I've looked everywhere and that is the only answer I can come up with. I a new PCV valve on today. The old one has oil in it. Felt clogged but still rattled around inside.
Posted via Mobile Device
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,143
|
Re: Oil Leak....fuel pump??
Check the front boss, just in front of the fuel pump, there should be a short bolt in the top hole. The bottom hole is blind but the top hole goes into the fuel pump cavity. At speed the oil seeps out and gets slung all over. If you block does not have a short (less than 1" long, if any longer it will hit the fuel pump rod) bolt in that hole that's your problem. Spray the area clean with some break clean and use a little sealer on the threads.
Posted via Mobile Device
__________________
1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
![]() |
![]() |
![]() |
#12 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
|
Re: Oil Leak....fuel pump??
If you have already put a short bolt in the "mystery hole", then you could either have a wicked front seal leak around the harmonic balancer, or the fuel pump seal could be shot as well.
I have changed many a SBC and BBC fuel pump and never had to hold it up with a bolt, or smear grease on it. Don't have to fight it either. They are great tricks, but not necessary. ![]() Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
|
||
![]() |
![]() |
![]() |
#13 | |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Re: Oil Leak....fuel pump??
Quote:
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
|
![]() |
![]() |
![]() |
#14 | |
Registered User
Join Date: Jul 2012
Location: Campbell, CA
Posts: 452
|
Re: Oil Leak....fuel pump??
Quote:
So I looked this weekend and my top hole does not go through to the push rod. Its blocked just like the bottom one. SOOO....it has to be the fuel pump right?
__________________
1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides |
|
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|