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Author: Subject: Very minor fuel leaks!
omega0684

posted on 11/5/11 at 07:10 AM Reply With Quote
Very minor fuel leaks!

Morning All,

I seem to be having a problem with my goodridge fittings in the fact that i am not getting a good seal on some of the connections resulting in very small, but noticable (& smellable) fuel leaks.

does anyone know of any sealing compounds i could use on the threads before connecting them together to make a permanent seal. i bought a haylomer sealent (IT DOES SAY ITS FUEL RESISTANT ON THE TUBE) but its useless and the leaks are still appearing

All the best

Alex





I love Pinto's, even if i did get mine from P&O!

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daviep

posted on 11/5/11 at 07:18 AM Reply With Quote
What type of fitting are you trying to seal? NPT, JIC,BSP?
What are they made of steel, stainless,aluminium?

Davie





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omega0684

posted on 11/5/11 at 07:22 AM Reply With Quote
JIC/AN - Aliminium

[Edited on 11/5/11 by omega0684]





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britishtrident

posted on 11/5/11 at 07:27 AM Reply With Quote
Don't use Hylomar or Hermatite or similar on fuel fittings, instead use a tiny amount of Loctite 243 "Lock N Seal" apply and allow it to start to cure for a few minutes before assembly. This product is especially good for banjo fittings on DCOE carbs and the float chamber banjo on very old SU carbs.

If you have copper washers on fittings you can anneal by heating them to a bit over 200c then allow to cool or coll by quenching.





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omega0684

posted on 11/5/11 at 09:56 AM Reply With Quote
can i just use any thread lock?





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britishtrident

posted on 11/5/11 at 10:10 AM Reply With Quote
Yes but the Lock N Seal grades have some filler material in the mix,





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02GF74

posted on 11/5/11 at 10:40 AM Reply With Quote
very strange.

banjo fitting seal by sng copper washer, which is softish metal that sequeezes down when fttings are tightened.

other type use a hollow cones whcih again will deform to seal when tightened.

there should not be need to use any sealant.

bet that hasn't helped - are you mixing fittings from different manufacturer's parhaps?

[Edited on 11/5/11 by 02GF74]






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Neville Jones

posted on 11/5/11 at 10:51 AM Reply With Quote
If you're talking about the -6 type AN/JIC fittings, where there is a male-female cone join, then they should self seal. Obviously.

Check the male cones for burrs, and the males and females for scratches on the cones.

Under no circumstance should any type of sealant be used on these joints, anywhere!!!

Sometimes, people get the hose joint onto the fitting not quite right, and these can cause a leak that appears to come from the metal joint.

Just don't put sealant in there, it won't fix the problem! And it could end up very dangerous.

If it's banjos, use fibre washers instead of copper. Buy lots that fit, and replace every time the joints are undone.

I've used hundreds of these, and problems are only caused by what I put above.

Cheers,
Nev.


[Edited on 11/5/11 by Neville Jones]

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omega0684

posted on 11/5/11 at 11:43 AM Reply With Quote
quote:
Originally posted by Neville Jones
If you're talking about the -6 type AN/JIC fittings, where there is a male-female cone join, then they should self seal. Obviously.
They are JIC-8 fittings

Under no circumstance should any type of sealant be used on these joints, anywhere!!!
Why Not?

Sometimes, people get the hose joint onto the fitting not quite right, and these can cause a leak that appears to come from the metal joint.
I plan to take all apart tomorrow so i will double check

Just don't put sealant in there, it won't fix the problem!
Why Not?

And it could end up very dangerous.
How & Why?


Cheers Alex

[Edited on 11/5/11 by omega0684]





I love Pinto's, even if i did get mine from P&O!

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RazMan

posted on 11/5/11 at 11:45 AM Reply With Quote
I have used Locktite 'Lock & Seal' to good effect - just use a tiny amount though





Cheers,
Raz

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Liam

posted on 11/5/11 at 12:15 PM Reply With Quote
As Neville said - surely surely surely no fuel fittings should rely on thread sealant??!! If the proper seals, be them cones, o-rings or metallic/fibre washers, are not sealing, replace the fittings.
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omega0684

posted on 11/5/11 at 01:10 PM Reply With Quote
quote:
Originally posted by Liam
As Neville said - surely surely surely no fuel fittings should rely on thread sealant??!! If the proper seals, be them cones, o-rings or metallic/fibre washers, are not sealing, replace the fittings.

they are brand new fittings from speedflow, and a £20 /time, they aint cheap!





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flak monkey

posted on 11/5/11 at 01:17 PM Reply With Quote
if they aren't sealing the either the cones are dirty/damaged or you need to do them up tighter.

if all else fails loctite 542 on the thread will seal. It's properly fuel proof too which I don't think the generic lock n seal is.





Sera

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Neville Jones

posted on 11/5/11 at 05:44 PM Reply With Quote
quote:
Originally posted by omega0684
quote:
Originally posted by Neville Jones
If you're talking about the -6 type AN/JIC fittings, where there is a male-female cone join, then they should self seal. Obviously.
They are JIC-8 fittings

Under no circumstance should any type of sealant be used on these joints, anywhere!!!
Why Not?

Sometimes, people get the hose joint onto the fitting not quite right, and these can cause a leak that appears to come from the metal joint.
I plan to take all apart tomorrow so i will double check

Just don't put sealant in there, it won't fix the problem!
Why Not?

And it could end up very dangerous.
How & Why?


Cheers Alex

[Edited on 11/5/11 by omega0684]


OK, I give up. I thought I wrote plain english.

If they leak, stuff them full of fuel proof sealant and be done. Heck, poly adhesive sealant would do the job. Do whatever you want. If someone on here told you to seal them with a mix of cow shite and builders cement, would you do it? There's a helluva lot of misinformation and bodges sprouted on this forum, and a lot of it is just plain wrong.

You're the one paid £20+ for the ends! If they don't work as designed, send the suckers back!!! -6, -8 makes no difference, the conical ends are designed to seal against each other.

Cheers,
Nev.

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Steve Hignett

posted on 12/5/11 at 02:45 AM Reply With Quote
quote:
Originally posted by Neville Jones


OK, I give up. I thought I wrote plain english.

If they leak, stuff them full of fuel proof sealant and be done. Heck, poly adhesive sealant would do the job. Do whatever you want. If someone on here told you to seal them with a mix of cow shite and builders cement, would you do it? There's a helluva lot of misinformation and bodges sprouted on this forum, and a lot of it is just plain wrong.

You're the one paid £20+ for the ends! If they don't work as designed, send the suckers back!!! -6, -8 makes no difference, the conical ends are designed to seal against each other.

Cheers,
Nev.




Just because someone hasn't followed your advice to the letter and blindly taken It word for word, and simply & politely asked for a little clarification Is not really a great reason for you to get all arsey...


There are quite a few people on here that give unfounded and unproven, and sometimes even dangerous advice, so to think your advice should ne followed no matter what is a tad pious... (in my humble opinion)

Several people suggested that a certain fuel sealer would work, and I'm sure the manufacturer would have done tests of some sort that contradict your statement of its use being unsafe and dangerous, so Im not surprised the OP wanted a little clarification!

As for the fittings costing 20 quid, I dont know if he had them on a shelf for a while or got them at a show, or on discount etc but there are a few reasons not to send them back for a refund, and it wasnt what was asked about...

I'm sure your comments are probably valid/constructive, but getting arsey and telkijg someone to use cow shite instead, doesnt really convey the sentiments of someone just wanting to assist...

Hope I havent offended, at least not too much, and sorry that Ive gone off-topic...

ATB
Steve

Sirry for speeling etc, am on my phone.

[Edited on 12/5/11 by Steve Hignett]

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Neville Jones

posted on 12/5/11 at 10:16 AM Reply With Quote
When the poster does not understand what he is using, asks for help and clarification, and it is given with a good degree of experience and knowledge, then I think I have a certain amount of right to mock/make light of the many bodges offerred.

The parts in question are not meant to have any type of sealant whatsover anywhere near them. To suggest sealant shows a complete lack of knowledge and understanding of how the parts operate.

If the parts are faulty, they need sending back to the manufacturer. This may be a 'batch' problem, and the mfr would certainly want to know about it. I work with Goodrige fittings and know some of the staff, and can say quite confidently, that they would want to know of problems.

They are also helpful on the phone directly.

This problem should have been put to Goodridge first, and not on here, for the reasons put above.

I fully realise that this forum is mostly amateur car enthusiasts, and for someone who has worked with the type of parts in question for over 30 years, those bodges suggested need to be discounted in every way possible.

Quite simply, fix the problem, not the symptom.

Cheers,
Nev.

I just noticed from the original post, these are not Goodridge fittings, but Speedflow. Cheese and chalk. The problem should be referred back to Speedflow.

Goodridge WILL have the logo stamped on them.

[Edited on 12/5/11 by Neville Jones]

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britishtrident

posted on 12/5/11 at 11:48 AM Reply With Quote
I am too polite to make any comment.....................................
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blakep82

posted on 12/5/11 at 11:57 AM Reply With Quote
quote:
Originally posted by Steve Hignett

Sirry for speeling etc, am on my phone.




must be the same sort of reason why you're not allowed to use your phone when driving?





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