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Fuel Filter questions


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#1 hawkandhorn

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Posted 05 March 2018 - 11:04 PM

Hey Guys,

Having some issues with my conquest chugging and shaking when i hit the boost.....i initially though it was an secondary injector issue...but i switched the injector leads, and my car starts and idles with the primary lead into the secondary injector so this leads me to believe the actual injector is fine..... i know it could very well still be a ecu issue with that injector i know  but know looking into  fuel...

Anyway when I purchased the vehicle it came with a new fuel filter that was never installed. Maybe the previous owner knew something i don't, and maybe the filter is so bad it cant feed both injectors properly....

I want to install it but need the specs for the correct copper crush washers for the banjo bolts..any help would be great...

You can see what im working with here  https://imgur.com/gallery/A8pVN

Also, do i need to release the pressure from the system so gas doesn't spray everywhere??

I see in the service manual it says this to release it

RELEASING RESIDUAL PRESSURE OF FUEL HIGH PRESSURE HOSE N14FGAB Reduce the internal pressure of the fuel main pipes and hoses by using the fallotiing procejdure.~ 5 NOTE Be sure to reduce&e internalfressure. If the hose is-removed _ from the fuel main pipe without reducing the internal pressure, fuel will gush out. _ (I) Remove high- floor side_panel located in the baggage - compartment floor. (2) Start the engine, and then disconnect the fuel gauge unit z connector. - (3) After the engrne has beenstopped, set the rgnrtron key to c “OFF” position - (4) Disconnect the battery cable from the negative terminal of the battery. -

Guess i should also switch the filter in the tank?? And the cone filter in the line somewhere?

Lastly do i need to release the fuel pressure to check the two small filters in the injector holder top.....i guess i could have the same issue if the one above the secondary injector was clogged.

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#2 Hoosierquest

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Posted 06 March 2018 - 05:45 PM

Have you checked you vacuum advance using the suck test?  
Also I would try re using the copper washers. Once you have them off and dry put some heat on then from a torch. Usually works for me
Never had an issue with fuel spraying. Just loosen the banjos slow if there is concern.
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87, .030 over JE's, non jet head, small 16G. Delphi injectors.  Quest owner since 2000.

#3 TexasQuest

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Posted 06 March 2018 - 06:08 PM

I agree with the vacuum advance being the possible culprit since it happens under boost. Just open your gas cap to relieve pressure and you'll be fine.
88 Fiji Blue -Tsi
Zoom clutch, Fidanza flywheel, Stedebani shifter, KSport coilovers, ST swaybars, abs delete, a/c delete, cruise delete, JVE, BSEK, TEP steel brake lines, LSP braided cooler lines, CX Racing radiator,  MK1 silicone hoses, MK1 pullies, *DM hard pipes & intercooler,14G turbo, ported exh. manifold, MAF Translator, 3.5" GM maf, Turbo XS RFL bov, *DM 3" exhaust, Cusco front strut bar, TEP rear strut bar, Enkei 92's, HKS turbo timer, AEM wideband, AEM boost gauge, AEM oil pressure gauge, Hallman boost controller
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View PostJohnnyWadd, on 04 March 2010 - 10:01 PM, said:

my shaft was big i dont know what your talking about.

#4 techboy

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Posted 07 March 2018 - 02:50 PM

Your new filter there should have come with new crush washers.  Maybe they got lost somewhere along the way.

Also, you can try reusing the crush washer as mentioned above, but don't be surprised if you have leak.  I've gotten away with it on coolant lines before, but I tired once with a fuel line and it leaked everywhere.  I even documented it in my restoration thread.  It's somewhere around where I was talking about the gas tank.  If you need me too, I can go out to the garage and measure the OEM crush washers with a caliper and give you the size.  Let me know.
1988 Starion ESi-R ... crushed by a tree 10/31/11 - back from the dead 8/2016
1988 Conquest TSi ... current driver - sold to Bigjoe 6/2016
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#5 TexasQuest

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Posted 08 March 2018 - 07:46 PM

I think Dad at engine machine service carries the copper crush washers.

http://www.enginemac...sesandlines.php

Edited by TexasQuest, 08 March 2018 - 07:47 PM.

88 Fiji Blue -Tsi
Zoom clutch, Fidanza flywheel, Stedebani shifter, KSport coilovers, ST swaybars, abs delete, a/c delete, cruise delete, JVE, BSEK, TEP steel brake lines, LSP braided cooler lines, CX Racing radiator,  MK1 silicone hoses, MK1 pullies, *DM hard pipes & intercooler,14G turbo, ported exh. manifold, MAF Translator, 3.5" GM maf, Turbo XS RFL bov, *DM 3" exhaust, Cusco front strut bar, TEP rear strut bar, Enkei 92's, HKS turbo timer, AEM wideband, AEM boost gauge, AEM oil pressure gauge, Hallman boost controller
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View PostJohnnyWadd, on 04 March 2010 - 10:01 PM, said:

my shaft was big i dont know what your talking about.

#6 importwarrior

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Posted 09 March 2018 - 07:08 AM

auto zone has them

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#7 hawkandhorn

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Posted 12 March 2018 - 12:19 AM

I got the top banjo bolt out...but the bottom one wont come out...any ideas?

Do i keep the filter in the metal holder? anyone have any tips on how to get the bottom bolt out?

#8 TexasQuest

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Posted 12 March 2018 - 06:20 PM

Use liquid penetrant. For some people it's easier to keep the bracket on and other remove it first.
88 Fiji Blue -Tsi
Zoom clutch, Fidanza flywheel, Stedebani shifter, KSport coilovers, ST swaybars, abs delete, a/c delete, cruise delete, JVE, BSEK, TEP steel brake lines, LSP braided cooler lines, CX Racing radiator,  MK1 silicone hoses, MK1 pullies, *DM hard pipes & intercooler,14G turbo, ported exh. manifold, MAF Translator, 3.5" GM maf, Turbo XS RFL bov, *DM 3" exhaust, Cusco front strut bar, TEP rear strut bar, Enkei 92's, HKS turbo timer, AEM wideband, AEM boost gauge, AEM oil pressure gauge, Hallman boost controller
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View PostJohnnyWadd, on 04 March 2010 - 10:01 PM, said:

my shaft was big i dont know what your talking about.

#9 hawkandhorn

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Posted 19 March 2018 - 03:38 AM

I go the bolt out :)  .. and replaced....and spilled some gas lol

The outside of the old one looked terribly worn, but i didn't notice too much "gunk" come out when i tried to pour our what was lef ton the inside....

Still need to go test drive with the new filter..




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