Where's the pump?
02-18-2008, 07:06 PM
#1
Junior Member
Thread Starter
Join Date: Feb 2008
Location: River Falls, WI
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 camaro
Engine: 305, Stock?
Transmission: 700r4
Where's the pump?
I have an 87 camaro(305 W/700r4) that my grandpa bought, the guy he bought it from rebuilt/took out/ screwed with the engine. from what I can see it is all stock. but now there is gas getting into the oil. I pretty much know its the fuel pump, so can any one tell me where it is? 
Last edited by marolover30587; 02-18-2008 at 08:23 PM.
02-18-2008, 07:23 PM
#2
TGO Supporter
Join Date: Oct 2002
Location: Saskatoon, SK, Canada
Posts: 9,067
Likes: 0
Received 1 Like
on
1 Post
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Where's the pump?
Oil getting into the gas? how do you know this? How do you know its a fuel pump issue?
02-18-2008, 07:36 PM
#3
Moderator
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,165
Likes: 0
Received 136 Likes
on
114 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Where's the pump?
It's impossible to get oil into the gas. The fuel pump is electric and inside the fuel tank. It will supply fuel to the engine and what isn't used will be returned to the tank. Nowhere in the system will oil get anywhere close to the gasoline.
If for some reason you have a mechanical fuel pump and a carburetor, the fuel pump is mounted at the right front side of the block. There is no pressurized oil there so again, there's no way to put oil into the fuel. A mechanical fuel pump has a better chance of putting gasoline into the oil than the other way around.
If for some reason you have a mechanical fuel pump and a carburetor, the fuel pump is mounted at the right front side of the block. There is no pressurized oil there so again, there's no way to put oil into the fuel. A mechanical fuel pump has a better chance of putting gasoline into the oil than the other way around.
02-18-2008, 08:20 PM
#4
Junior Member
Thread Starter
Join Date: Feb 2008
Location: River Falls, WI
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 camaro
Engine: 305, Stock?
Transmission: 700r4
Re: Where's the pump?
Sorry gas into oil typo fixed it though
Last edited by marolover30587; 02-18-2008 at 08:24 PM. Reason: first mistake
02-18-2008, 09:41 PM
#5
Member
iTrader: (2)
Join Date: Sep 2007
Location: mesa, arizona
Posts: 180
Likes: 0
Received 0 Likes
on
0 Posts
Car: 84 Trans Am
Engine: 383
Transmission: Tremec TKO
Axle/Gears: 10 bolt 3.73 lsd
Re: Where's the pump?
if the electric pump is on with the engine off, the fuel could potentially make it past the seat, go into the intake, and fill the cylinders with fuel, which would leak past the rings and down into the oil pan. make sure that the pump is not running continuosly while the engine is not running.
02-18-2008, 09:48 PM
#6
Moderator
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,165
Likes: 0
Received 136 Likes
on
114 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Where's the pump?
Then if you have a mechanical pump on the side of the block it could be leaking past the diaphram and leaking into the oil
02-19-2008, 11:43 AM
#7
Junior Member
Thread Starter
Join Date: Feb 2008
Location: River Falls, WI
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 camaro
Engine: 305, Stock?
Transmission: 700r4
Re: Where's the pump?
Its definately a mechanical, as there is no switch inside, but i'll look into it
Trending Topics
02-19-2008, 12:46 PM
#8
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
There's no switch inside for the electric fuel pump.
I'm a little confused how you could know it's mechanical but not know where it is. Oh, because you don't see a fuel switch inside the car. Never mind.
Is this engine carburetored or TPI? If TPI, there is no mechanical pump.
If it's carburated, it has both a mechanical pump mounted on the front passenger corner on the side of the engine just above the oil pan, and an electric inside the fuel tank. This was a 1987 model year only thing (from the factory - the in-tank could be added by the dealer as a "vapor lock" kit), and coincidently, the last year of a carburetor on f-bodies.
I'm a little confused how you could know it's mechanical but not know where it is. Oh, because you don't see a fuel switch inside the car. Never mind.
Is this engine carburetored or TPI? If TPI, there is no mechanical pump.
If it's carburated, it has both a mechanical pump mounted on the front passenger corner on the side of the engine just above the oil pan, and an electric inside the fuel tank. This was a 1987 model year only thing (from the factory - the in-tank could be added by the dealer as a "vapor lock" kit), and coincidently, the last year of a carburetor on f-bodies.
Last edited by five7kid; 02-20-2008 at 11:28 AM.
02-20-2008, 09:22 AM
#9
Junior Member
Thread Starter
Join Date: Feb 2008
Location: River Falls, WI
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 camaro
Engine: 305, Stock?
Transmission: 700r4
Re: Where's the pump?
I fixed it, thanks for all the info it was the mechanical pump I currently now feel like an idiot for not seeing the pump. only took me half an hour to change it.
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
12-10-2019 07:07 PM
