How to leak "proof" bags ?! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71sub · 01-03-2010, 08:14 PM

I installed a set of slam bags in the front my 71 truck w/ schrader valves BUT after about 3 days the bags are empty !!!! I bought the complete kit from Chris Alston Chasis Works. I feel confident that the bags are good BUT what did I do wrong ?

What should I use on the threads of the brass connectors I used ? It currently has teflon tape. Want to know what to have at my disposable when I tear it down again.

Thanks !

Ev

orange71 · 01-03-2010, 09:00 PM

I always use teflon tape and loc tite makes a thread sealant That works really good! A combo of the 2 work really good

fixit-p · 01-03-2010, 09:03 PM

Why not get some soapy water in a spray bottle and see which fittings are leaking

SCOTI · 01-03-2010, 09:06 PM

Quote:

Originally Posted by fixit-p

Why not get some soapy water in a spray bottle and see which fittings are leaking

x2.

Rollie396 · 01-03-2010, 09:13 PM

Before you tear into it,make sure you test it all with soapy water in a spray bottle to find the leaks first.Last time I went searching for a leak,it took awhile to find it as it was tiny!That one took between 4-5 days to leak down.

*edit* ^those two type faster than me

71sub · 01-03-2010, 09:53 PM

I'll try the soapy water to find the leak --- AND then use teflon w/ loctite ?

**lolife99** · 01-03-2010, 10:00 PM

Loctite 545 hydraulic thread sealant.

http://www.fastenalvehicles.com/web/...atchallpartial

ruffrida2005 · 01-03-2010, 10:05 PM

Quote:

Originally Posted by lolife99

Loctite 545 hydraulic thread sealant.

X2 That's what most of the custom shops will tell you to use.

dznucks · 01-04-2010, 02:22 PM

are you using any push to connect fittings and tubing with the schraders or do your schraders screw into brass fittings?

My rear is bagged with schraders that have short lengths of push to connect tubing so i can fill them without getting completely under the truck. mine leak down too. I never found a leak with soap and water and it also never leaked down while it was just sitting. they only leaked while i drove it. I think my leaks are at the PTC fittings, the vibration of the tubing in the fitting is causing my leaks.

SCOTI · 01-04-2010, 04:18 PM

Quote:

Originally Posted by dznucks

are you using any push to connect fittings and tubing with the schraders or do your schraders screw into brass fittings?

My rear is bagged with schraders that have short lengths of push to connect tubing so i can fill them without getting completely under the truck. mine leak down too. I never found a leak with soap and water and it also never leaked down while it was just sitting. they only leaked while i drove it. I think my leaks are at the PTC fittings, the vibration of the tubing in the fitting is causing my leaks.

I've used PTC fittings from Ride Tech w/o issue. I have always wondered if the other 'sources' for fittings sell a similar quality of fitting? I assume that all fittings are not created equal.... but wonder how big the gap is in quality of different brands?

**kev2809** · 01-04-2010, 06:36 PM

are you using t fittings? i had the same problem on my truck, the back would leak down and i feared it was the bags. but i switched t's and now the front leaks down and the back is fine, so my problem is somewhere in the t's. since they arent staying on the truck when i finish up the air ride, its not that big of a deal.

ps...that loctite 545 is expensive but that stuff hardens like a rock. get at least a 10ML bottle

ruffrida2005 · 01-04-2010, 10:28 PM

If you are using PTC fitting make sure that your cuts are night and straight. if theres any angle in them they will leak.

That's probably why yours is leaking DZNUCKS

fastbagged68 · 01-05-2010, 12:17 PM

Go to your local toy store and buy some blow bubble mix. Put it in a spray bottle and spray away. Check all your fittings. If you have push-connect fitting spray them. I have found that sometimes they are faulty.

**scotts62** · 01-05-2010, 02:10 PM

Quote:

Originally Posted by fastbagged68

Go to your local toy store and buy some blow bubble mix. Put it in a spray bottle and spray away. Check all your fittings. If you have push-connect fitting spray them. I have found that sometimes they are faulty.

you know, ive never thought of that.. i would always grab the ol soap bottle.

01-03-2010, 08:14 PM	#1
71sub Registered User Join Date: May 2002 Location: Stockton, CA Posts: 169	How to leak "proof" bags ?! I installed a set of slam bags in the front my 71 truck w/ schrader valves BUT after about 3 days the bags are empty !!!! I bought the complete kit from Chris Alston Chasis Works. I feel confident that the bags are good BUT what did I do wrong ? What should I use on the threads of the brass connectors I used ? It currently has teflon tape. Want to know what to have at my disposable when I tear it down again. Thanks ! Ev __________________ 71 C/10 : 350 / 700r4 ; Ford 9" posi 3.50 with 31x10.5 rear tires, single drive shaft, C-notch, 2.5" drop spindles, keyless entry 71 Suburban 350/350 -- caddy tail lights, keyless entry, late model seats, billet Autometer instrument cluster 70 Ford Torino -- 351W (balanced & blueprinted ), C4, VDO gauges

01-03-2010, 09:00 PM	#2
orange71 Registered User Join Date: Sep 2002 Location: upland, california Posts: 146	Re: How to leak "proof" bags ?! I always use teflon tape and loc tite makes a thread sealant That works really good! A combo of the 2 work really good

01-03-2010, 09:13 PM	#5
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	Re: How to leak "proof" bags ?! Before you tear into it,make sure you test it all with soapy water in a spray bottle to find the leaks first.Last time I went searching for a leak,it took awhile to find it as it was tiny!That one took between 4-5 days to leak down. edit ^those two type faster than me __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics Last edited by Rollie396; 01-03-2010 at 09:14 PM.

01-03-2010, 09:53 PM	#6
71sub Registered User Join Date: May 2002 Location: Stockton, CA Posts: 169	Re: How to leak "proof" bags ?! I'll try the soapy water to find the leak --- AND then use teflon w/ loctite ? __________________ 71 C/10 : 350 / 700r4 ; Ford 9" posi 3.50 with 31x10.5 rear tires, single drive shaft, C-notch, 2.5" drop spindles, keyless entry 71 Suburban 350/350 -- caddy tail lights, keyless entry, late model seats, billet Autometer instrument cluster 70 Ford Torino -- 351W (balanced & blueprinted ), C4, VDO gauges

01-03-2010, 10:00 PM	#7
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: How to leak "proof" bags ?! Loctite 545 hydraulic thread sealant. http://www.fastenalvehicles.com/web/...atchallpartial Last edited by lolife99; 01-03-2010 at 10:05 PM.

01-04-2010, 02:22 PM	#9
dznucks Registered User Join Date: Feb 2006 Location: Smyrna, Ga Posts: 1,647	Re: How to leak "proof" bags ?! are you using any push to connect fittings and tubing with the schraders or do your schraders screw into brass fittings? My rear is bagged with schraders that have short lengths of push to connect tubing so i can fill them without getting completely under the truck. mine leak down too. I never found a leak with soap and water and it also never leaked down while it was just sitting. they only leaked while i drove it. I think my leaks are at the PTC fittings, the vibration of the tubing in the fitting is causing my leaks.

01-04-2010, 06:36 PM	#11
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,176	Re: How to leak "proof" bags ?! are you using t fittings? i had the same problem on my truck, the back would leak down and i feared it was the bags. but i switched t's and now the front leaks down and the back is fine, so my problem is somewhere in the t's. since they arent staying on the truck when i finish up the air ride, its not that big of a deal. ps...that loctite 545 is expensive but that stuff hardens like a rock. get at least a 10ML bottle __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_]

01-04-2010, 10:28 PM	#12
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: How to leak "proof" bags ?! If you are using PTC fitting make sure that your cuts are night and straight. if theres any angle in them they will leak. That's probably why yours is leaking DZNUCKS __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

01-05-2010, 12:17 PM	#13
fastbagged68 Registered User Join Date: Jun 2002 Location: Tri Valley California Posts: 792	Re: How to leak "proof" bags ?! Go to your local toy store and buy some blow bubble mix. Put it in a spray bottle and spray away. Check all your fittings. If you have push-connect fitting spray them. I have found that sometimes they are faulty.

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