Fuel pulsator ?

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Aug 9, 2009 | 04:42 PM

josephf31

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Pro

Joined: Mar 2008

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From: High Bridge New Jersey

Fuel pulsator ?

On a '91 L98, is there an 'in' and 'out' on the pulsator? or does it not matter?

I had a hard start problem on mine, bypassed it for now, was wondering if it could have been on 'backwards'?

Thanks!

Aug 9, 2009 | 06:24 PM

rodj

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From: Australia

You refering to the pulsator on the return line from the fuel rail at front of engine?

Aug 9, 2009 | 06:27 PM

383vett

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From: moraga ca

??????????

Aug 9, 2009 | 06:59 PM

Pwnage1337

Tech Contributor

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From: Custer, WI

maybe he means regulator?

Aug 9, 2009 | 07:04 PM

rodj

Le Mans Master

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From: Australia

Quote:

Originally Posted by 383vett

??????????

The later cars (l98 at least ) had a dampener on the return fuel line to try and take out the vibration in the fuel line

For those ;driving to the golf club on Sunday types

Last edited by rodj; Aug 9, 2009 at 07:15 PM.

Aug 9, 2009 | 07:06 PM

383vett

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From: moraga ca

Quote:

Originally Posted by rodj

The later cars (l98 at least ) had a dampener on the return fuel line totry and take out the vibration in the fuel line

For those ;driving to the golf club on Sunday types

Thanks, I thought we were going back to the flux capacator thing.

Aug 9, 2009 | 10:21 PM

Aardwolf

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Joined: Jun 2004

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From: WI

I doubt there is an flow direction, but try blowing in it and see if there's a difference. Or do the best thing and just throw it away.

Aug 9, 2009 | 10:22 PM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,381

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From: Boston, MA

If it is like the one my '87 had between the fuel pump and the fuel pump sending unit then no there is no in and out. It is just a metal "thing" with a diaphram inside to help cancel out pulsation.

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Aug 10, 2009 | 12:35 AM

87stocker

Racer

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From: DRAYTON VALLEY ALBERTA

Get a peice of fuel line and 2 hose clamps and get rid of that trouble causing pos. No there is no direction it should go except to the garbage can.

Aug 10, 2009 | 07:31 AM

#10

scorp508

Team Owner

Joined: Mar 2000

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From: Boston, MA

Quote:

Originally Posted by 87stocker

No there is no direction it should go except to the garbage can.

Took mine out recently too.

Aug 10, 2009 | 08:09 AM

#11

engle1147

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From: Tampa Florida

Quote:

Originally Posted by 87stocker

Get a peice of fuel line and 2 hose clamps and get rid of that trouble causing pos. No there is no direction it should go except to the garbage can.

Get a piece of high pressure "fuel injection hose".

Aug 10, 2009 | 12:05 PM

#12

scotth48

Burning Brakes

Joined: Apr 2009

Posts: 1,185

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From: Charlotte Michigan

Took mine out of my LT1 and replaced with hose. Mine is on the pressure line from the fuel pump to the steel line inside the fuel tank.

Apr 27, 2013 | 01:53 PM

#13

garyajaz

Cruising

Joined: Jan 2012

Posts: 11

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yep, after havinig low and dropping rail pressure on my 89 that was problem.
replaced fuel pump and filter. was thinking leaking injectors but plug reading look great.
got rid of the pulastor and it runs bette than ever.

Apr 29, 2013 | 05:57 AM

#14

Cliff Harris

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Joined: Apr 2002

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From: Anaheim CA

Make sure you use "submersible" fuel line or the gasoline will destroy it.

Gates part number 27093. Prepare for sticker shock... It's about $20 for 1 foot.