Leaky y-pipe slip joint on Stillen CBE.

gh0st3794 · 04-16-2010, 10:45 AM

Anyone have any tips/tricks on getting the slip joint to seal fully? I've tried the u-bolt clamps that came with the system, as well as Easyseal stainless band clamps. No matter how tight I torqued the bolts down, some air/water still leaked through the joint. My main issue is with the slip joint on the y-pipe. When the exhaust is cold I can feel a tiny bit of air pulsing through, as well as see a bit of water dripping from the joint. When the pipes heat up however, they expand and it seems to seal up. Other than getting the slip joint welded at a muffler shop, not sure what else to do.

tru_Asiatik · 04-16-2010, 10:47 AM

you pretty much answer you own question
...get it welded
other than that just live with it like i did altho i think thru time the leak i have has stopped...probably because of build up lol

Daishi · 04-16-2010, 12:06 PM

Quote:

Originally Posted by gh0st3794

Anyone have any tips/tricks on getting the slip joint to seal fully? I've tried the u-bolt clamps that came with the system, as well as Easyseal stainless band clamps. No matter how tight I torqued the bolts down, some air/water still leaked through the joint. My main issue is with the slip joint on the y-pipe. When the exhaust is cold I can feel a tiny bit of air pulsing through, as well as see a bit of water dripping from the joint. When the pipes heat up however, they expand and it seems to seal up. Other than getting the slip joint welded at a muffler shop, not sure what else to do.

Only way is to weld it or put some high temp silicone on it. best way is the high temp silicone and you shouldnt get anymore leaks. I hate slip joints they always leak and its the cheap way to do things.

gh0st3794 · 04-16-2010, 04:29 PM

I'm probably going to try and pick up some t-bolt clamps and see if those help. If not then I'll just end up getting it welded.

Daishi · 04-16-2010, 04:37 PM

Quote:

Originally Posted by gh0st3794

I'm probably going to try and pick up some t-bolt clamps and see if those help. If not then I'll just end up getting it welded.

id recommend the high temp silicone.. easiest solution and is effective.

spearfish25 · 04-18-2010, 10:56 PM

I was going to do the high-temp silicone, but then I found some hi-temp metal epoxy. Tried it out today and so far, I'm impressed. A little kneading to get it activated, then you have to work with it for about 5 min to get it to adhere to the exhaust slip joint. Then suddenly, it just gets sticky and stays where you put it. An hour later after I changed the oil, it was as solid as a rock. No way that bitch is gonna leak now.

corbin09 · 04-19-2010, 03:25 PM

I used hi temp silicon ( the kind with copper in it) It was very easy to use.. I just spread it over the entire joint and where the gasket would be.. It has worked great thus far..

gh0st3794 · 04-20-2010, 08:52 AM

I ended up getting the slip joint welded yesterday.

spearfish25 · 04-20-2010, 07:31 PM

Quote:

Originally Posted by gh0st3794

I ended up getting the slip joint welded yesterday.

Just one or all three?

gh0st3794 · 04-21-2010, 08:49 AM

Just the y-pipe. The rear slip joints seem to be ok. It's just the y-pipe slip joint that seemed like the flared end of the pipe was a tiny bit bigger than it should have been, making it harder to seal properly.

m4a1mustang · 04-21-2010, 08:55 AM

Slip joints FTL.

Daishi · 04-21-2010, 10:55 AM

Quote:

Originally Posted by m4a1mustang

Slip joints FTL.

Yuppp

Rob@AAMComp · 04-22-2010, 10:11 AM

A common issue with Stillen CBE, (as well as any other slip joint exhausts) Bolted flanges with gaskets FTW!

We had a customer that replaced all slip joints with SS flanges once!

04-16-2010, 10:45 AM	#1 (permalink)
gh0st3794 Base Member Join Date: Jan 2010 Location: FL Posts: 121 Drives: 2012 NISMO 370Z Rep Power: 15	Leaky y-pipe slip joint on Stillen CBE. Anyone have any tips/tricks on getting the slip joint to seal fully? I've tried the u-bolt clamps that came with the system, as well as Easyseal stainless band clamps. No matter how tight I torqued the bolts down, some air/water still leaked through the joint. My main issue is with the slip joint on the y-pipe. When the exhaust is cold I can feel a tiny bit of air pulsing through, as well as see a bit of water dripping from the joint. When the pipes heat up however, they expand and it seems to seal up. Other than getting the slip joint welded at a muffler shop, not sure what else to do. __________________ -2012 Solid Red NISMO 370Z -2010 370Z 6MT sport pkg 301 whp 251.4 wtq (Dynojet) SOLD -K8 Suzuki GSX-R 600

04-16-2010, 10:47 AM	#2 (permalink)
tru_Asiatik Track Member Join Date: Feb 2009 Location: so cal Posts: 793 Drives: 2009 370Z 6MT Rep Power: 270	you pretty much answer you own question ...get it welded other than that just live with it like i did altho i think thru time the leak i have has stopped...probably because of build up lol __________________ Stillen G3 CAIStillen CBEBerk's HFCEibach ProkitHotchkis Swaysichiba 15/20mm spacers? Oil coolerStillen PulleyStillen Headers

04-16-2010, 04:29 PM	#4 (permalink)
gh0st3794 Base Member Join Date: Jan 2010 Location: FL Posts: 121 Drives: 2012 NISMO 370Z Rep Power: 15	I'm probably going to try and pick up some t-bolt clamps and see if those help. If not then I'll just end up getting it welded. __________________ -2012 Solid Red NISMO 370Z -2010 370Z 6MT sport pkg 301 whp 251.4 wtq (Dynojet) SOLD -K8 Suzuki GSX-R 600

04-18-2010, 10:56 PM	#6 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	I was going to do the high-temp silicone, but then I found some hi-temp metal epoxy. Tried it out today and so far, I'm impressed. A little kneading to get it activated, then you have to work with it for about 5 min to get it to adhere to the exhaust slip joint. Then suddenly, it just gets sticky and stays where you put it. An hour later after I changed the oil, it was as solid as a rock. No way that bitch is gonna leak now. __________________ 2013 Cadillac V-Wagon, RIP Z

04-20-2010, 08:52 AM	#8 (permalink)
gh0st3794 Base Member Join Date: Jan 2010 Location: FL Posts: 121 Drives: 2012 NISMO 370Z Rep Power: 15	I ended up getting the slip joint welded yesterday. __________________ -2012 Solid Red NISMO 370Z -2010 370Z 6MT sport pkg 301 whp 251.4 wtq (Dynojet) SOLD -K8 Suzuki GSX-R 600

04-19-2010, 03:25 PM	#7 (permalink)
corbin09 Track Member Join Date: Jun 2009 Location: Dallas tx Posts: 665 Drives: 370z Rep Power: 280	I used hi temp silicon ( the kind with copper in it) It was very easy to use.. I just spread it over the entire joint and where the gasket would be.. It has worked great thus far..

04-21-2010, 08:49 AM	#10 (permalink)
gh0st3794 Base Member Join Date: Jan 2010 Location: FL Posts: 121 Drives: 2012 NISMO 370Z Rep Power: 15	Just the y-pipe. The rear slip joints seem to be ok. It's just the y-pipe slip joint that seemed like the flared end of the pipe was a tiny bit bigger than it should have been, making it harder to seal properly. __________________ -2012 Solid Red NISMO 370Z -2010 370Z 6MT sport pkg 301 whp 251.4 wtq (Dynojet) SOLD -K8 Suzuki GSX-R 600

04-21-2010, 08:55 AM	#11 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Slip joints FTL. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

04-22-2010, 10:11 AM	#13 (permalink)
Rob@AAMComp Base Member Join Date: Apr 2010 Location: Rockville MD Posts: 34 Drives: Fun Commuter Rep Power: 15	A common issue with Stillen CBE, (as well as any other slip joint exhausts) Bolted flanges with gaskets FTW! We had a customer that replaced all slip joints with SS flanges once!

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