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Gas Filter 85

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Old Jul 13, 2007 | 05:10 PM
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Default Gas Filter 85

I have my filter.

I have heard from a lot of people that its hard to do, and takes up to two hours.

It looks plain and simple...


Am i missing some thing ???


Jack it up so you can get under there.

Use a good set of wrenches

Kill the fuel fuse while its running ?

and swap it out... ?
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Old Jul 13, 2007 | 05:15 PM
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It isn't that hard, I disconnect my negative battery terminal when I did mine, get a 16mm flair line wrench and I think the other is a 20 mm wrench as a backup wrench, I just used a crescent wrench for my backup. Loosen the strap, the bolt holding it is a 10mm bolt, disconnect engine side first. Be prepared to have some gasoline drain out, I'd say have a bucket ready to catch it and let it gravity drain for a few. I've heard suggestions of wrapping towels around your arms to keep fuel from running down your back, also make sure you have goggles on.

Not hard, just annoying and even 87 octane fuel can irritate your skin.

Here's why it took me so long, rust, and lots of it.
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Old Jul 13, 2007 | 08:33 PM
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15 minute job.
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Old Jul 14, 2007 | 01:42 AM
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Originally Posted by moserbe
15 minute job.
once the car is on the ramps, it's a piece of cake.
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Old Jul 14, 2007 | 04:15 AM
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So im thinking while its running, il pull the gas line fuse. This should help empty the gas.

also

Unscrew the gas cap.

Does every one agree with the first part, i dont want to mess any thing up..
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Old Jul 14, 2007 | 05:01 AM
  #6  
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Originally Posted by corvettedan22
So im thinking while its running, il pull the gas line fuse. This should help empty the gas.

also

Unscrew the gas cap.

Does every one agree with the first part, i dont want to mess any thing up..
Either start the engine and pull the fuse or let the car sit over night. Either way you need it on ramps before hand. You will get some gas out of the lines as soon as you break the retaining nuts loose. Don't worry about the gas cap.
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Old Jul 14, 2007 | 09:20 AM
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You know, I should probably look into this...where is this thing located on the car?
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Old Jul 14, 2007 | 09:37 AM
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An '85 doesn't have pre-cats, right? This should make it a lot easier to access. I know on stock LTx cars with the two main cats still in place, it's a bit of a PITA.
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Old Jul 14, 2007 | 09:44 AM
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Originally Posted by Corvette Kid
An '85 doesn't have pre-cats, right? This should make it a lot easier to access. I know on stock LTx cars with the two main cats still in place, it's a bit of a PITA.
No precats on the 85.

FF is a piece of cake.
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Old Jul 14, 2007 | 10:43 AM
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Default filter

1. If the car isn't hot, place a rag near the fuel rail pressure schrader valve, and depres it till the pressure goes away. let the rag soak up the gas.
2. take off the gas cap, then put it back on.
3. Get an aluminum turkey pan from the market for about $3 and place a rag in the bottom of it, and put it in position.
4. use a 13/16 wrench on the filter and a 5/8 wrench on the fuel lines. wrap a rag around the filter fittings when you break them loose to catch residual.
5. Use the longest wrenches in those sizes that you can.
6. Pull the fuel line that goes to the engine forward to release the tension on the filter, and it will fall into the turkey pan.
7. Notice on the new filter which way goes forward, it's usually either the welded or crimped end of the filter.
8. Put the new filter on the rear line, and pull the front line again, line the line up into the filter, and release. **** the filter to line up the fittings, (be sure it's
not crossthreaded, because changing that fuel line ususally means selling the car) and tighten. Make them tight because theres no seal, you are crimping the
flare on the line.
9. turn the key on, wait for 2 seconds, then try to start it. it may take up to 3 or 4 tries to fill up the filter and build up pressure.

Last edited by coupeguy2001; Jul 14, 2007 at 10:47 AM. Reason: add content
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Old Jul 14, 2007 | 03:30 PM
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I think the LT-1 cars have big pre cats and heat shielding in close proximity to the fuel filter which makes their cars more difficult than us L98 folks.
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Old Jul 14, 2007 | 05:35 PM
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All set guys, thanks

http://forums.corvetteforum.com/show...post1561075470
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