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albertj
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyWed Feb 06, 2008 4:45 pm

It's a funny thing - given the amount of auto fuel (gas and diesel) made, and where it comes from (underground) the stuff is amazingly free of filth. On the later model Rivs, the fuel tanks are plastic (no rust), too. So what does a fuel filter do?

One is that it traps very, very fine particles. This is important for our fuel injectors, whcih have teeny pintles that almost atomize the fuel squirted thru them. Don't want to clog an injector by adding microgrit to the gum/varnish residue that builds up anyway.

Another - perhaps the biggest one - is that the fuel filter traps organic contaminants. If you cut open a used fuel filter and find a slime on teh intake side, that's organic stuff. Some of you may have taken a fuel pump out and found slime on the intake screen. That's organic contmainants, too.

Still another is that some fuel filters are designed to trap water as well - I am told that some have separators that set the water aside, while others just trap it in the filter media (I don't know whether or how that works). Your tank will build up, over time, a puddle of water in teh bottom from condensation. One way to get rid of this is the occasional bottle of dry gas (Heet). I have not used any for that purpose in years. Last can of dry gas I had, I used to help clean brake parts (that were not very dirty in the first place).

Finally - there's a chance to put contaminants in the tank every time you gas up. What the fuel strainer does not trap, the fuel filter will.

With this context, it's not clear to me which fuel filter is 'best.' Here is something interesting about fuel filters, including a cutaway picture of a used one:

http://forums.audiworld.com/s4b7/msgs/61753.phtml

Maybe factory /OEm is the say to go.

Albertj
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ibmoses
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Replaced   FAQ: Fuel Filters - Page 3 EmptyFri Feb 08, 2008 11:39 am

Since I already had the Purolator filter on hand I used it.
The one that I removed was AC Delco, it looked like it might have been the original, 77,000 miles.
Hopefully the Purolator filter will be just fine, I guess my original question should have been would the Purolator filter be more restricitive than the AC Delco, thats the only way I can see it might not be good for the car...

Thanks for all the replies.
Bert
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ibmoses
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Feb 23, 2008 3:05 pm

From:http://www.regalgs.org/forum/viewtopic.php?t=50118&highlight=
The guys at ClubGP are using a fuel filter from a 2004 Chevy Tahoe Flex Fuel vehicle instead. The flex fuel filter is a much higher flow filter compared to our stock filters (12 microns vs 17 microns). High flow filters are expected to help reduce KR, esp in 3rd gear, according to ZZP. I'm going to order one! FAQ: Fuel Filters - Page 3 Icon_cool

http://www.rockauto.com/catalog/x,carcode,1424258,parttype,6200


Will this work on the 99 Riv ?
Any of youse guys tried one?tavis

Thanks

Bert:tavis:


Last edited by AA on Mon Feb 25, 2008 2:20 pm; edited 1 time in total
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albertj
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Feb 23, 2008 5:20 pm

You had best make sure there is no reason the filter is 12 microns. For instance, GM for a time was using special pintles on fuel injectors, with very small holes.

Albertj
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1998 Riv
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Feb 23, 2008 6:09 pm

Bert, I'd stick with an AC Delco fuel filter. It flows plenty for a mostly stock application. I doubt that filter flow is a limiting factor in getting enough fuel in your situation. I emailed ZZP last year about their hi-flow fuel filter, and Zoomer told me don't bother unless you are highly modded.
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ibmoses
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Feb 23, 2008 6:16 pm

1998 Riv wrote:
Bert, I'd stick with an AC Delco fuel filter. It flows plenty for a mostly stock application. I doubt that filter flow is a limiting factor in getting enough fuel in your situation. I emailed ZZP last year about their hi-flow fuel filter, and Zoomer told me don't bother unless you are highly modded.

Very Good then, thanks.
The car is bone stock so I will stick with the AC Delco.
Got to get one ride to replace the Purolator that is on the car...

Bert:tavis:
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racinfan
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Feb 23, 2008 11:13 pm

ibmoses wrote:
1998 Riv wrote:
Bert, I'd stick with an AC Delco fuel filter. It flows plenty for a mostly stock application. I doubt that filter flow is a limiting factor in getting enough fuel in your situation. I emailed ZZP last year about their hi-flow fuel filter, and Zoomer told me don't bother unless you are highly modded.

Very Good then, thanks.
The car is bone stock so I will stick with the AC Delco.
Got to get one ride to replace the Purolator that is on the car...

Bert:tavis:

What's wrong with purolator?
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1998 Riv
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Feb 23, 2008 11:23 pm

Joe, I think he's just doing maintenance since the car is new to him and who knows when the filter was changed last. Otherwise a Purolator should be fine too.
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racinfan
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Feb 25, 2008 1:50 am

1998 Riv wrote:
Joe, I think he's just doing maintenance since the car is new to him and who knows when the filter was changed last. Otherwise a Purolator should be fine too.

Right, what I like about the purolator filters is that they have the production date right on them and can give you a general time of when the filter was last changed. Everything I gather about purolator is that they make a good filter.
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oldsman105
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Higher flow fuel filter.   FAQ: Fuel Filters - Page 3 EmptyMon Feb 25, 2008 1:46 pm

dlclarkii wrote:
The guys at ClubGP are using a fuel filter from a 2004 Chevy Tahoe Flex Fuel vehicle instead. The flex fuel filter is a much higher flow filter compared to our stock filters (12 microns vs 17 microns). High flow filters are expected to help reduce KR, esp in 3rd gear, according to ZZP. I'm going to order one! cool

http://www.rockauto.com/catalog/x,carcode,1424258,parttype,6200


I'll be picking one up while I install my new fuel pump. Just thought I'd share.
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jordynarz
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Depressurizing fuel system   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 3:24 pm

I need help finding the fuse box so I can depressurize the fuel system to change the fuel filter. Could someone please tell me how to depressurize it?
Thanks
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AA
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 5:52 pm

You can unscrew the cap to the schrader valve on the fuel rail. Use a rag to a screw driver to depressurize the line. I have changed the filter without depressurizing before. it doesn't spill out as much as you'd think.

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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jordynarz
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 6:13 pm

Ok. Thanks! So do I have to use a special wrench to get the filter off? Or can I use something different?
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 6:19 pm

jordynarz wrote:
Ok. Thanks! So do I have to use a special wrench to get the filter off? Or can I use something different?
no special tools required...just a wrench. But I dont know what size off hand.
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AA
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 6:22 pm

I use a pair of line wrenches like this one to break loose the filter from the line:

FAQ: Fuel Filters - Page 3 July_2006_DIY_Step3

Be gentle. If it's stuck, spray some PB blaster on and soak for 1/2 hour. On the other end there's a plastic connector that can be disconnected by hand or with a flat screw driver.

It's not a bad idea to have a clean rag or fire extinguisher close by in case of a fire. Be careful not to drop wrenches or pound on anything when fuel is present.

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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http://www.cardomain.com/ride/657082/4
jordynarz
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 6:26 pm

OK! Thanks for all the help! I will remember that when we change it. We deicided not to change it today. We couldnt even get the back sprk plug wires changed. This clip holding the wires in is weird. theres no way to undo the clip.
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AA
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 6:28 pm

This is a Series I SC engine, correct?

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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http://www.cardomain.com/ride/657082/4
jordynarz
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyMon Jul 28, 2008 7:37 pm

yes
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97chargedriv
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyThu Aug 21, 2008 3:06 am

dude just need to take off your gas tank cap
i changed my fuel filter last week
just got a little gas on me from the lines
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptyThu Aug 21, 2008 6:27 pm

I'm changing mine next week.
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Chicken
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySat Aug 23, 2008 8:21 am

Oldsman....Did you put on the Chevy Tahoe filter? How did it work out for you?
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Chicken
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySun Aug 24, 2008 4:52 pm

anyone know what size wrench I need for this? it seems to fit a 13/16 but theres alot of play...is it metric? and do I have room to use a cresent wrench?
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ibmoses
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySun Aug 24, 2008 6:13 pm

Chicken wrote:
anyone know what size wrench I need for this? it seems to fit a 13/16 but theres alot of play...is it metric? and do I have room to use a cresent wrench?

There are special wrenches for the fuel and brake line fittings. I think they are called flare nut wrenches.
A good investment, get them at Sears or NAPA amonst other places...

Bert tavis
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AA
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySun Aug 24, 2008 7:16 pm

Multiple fuel filter threads have been merged. Please read through again... and someone do a write-up already!

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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http://www.cardomain.com/ride/657082/4
Chicken
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 EmptySun Aug 24, 2008 7:18 pm

sigh....I guess I'm up.....

I'll do a write up w/ pics.....
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FAQ: Fuel Filters - Page 3 Empty
PostSubject: Re: FAQ: Fuel Filters   FAQ: Fuel Filters - Page 3 Empty

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