David M Posted June 12, 2006 Share Posted June 12, 2006 Hi, Had my powerspeed exhaust for about a year and exhaust is coming out of where the 4 primary's join the external section (quite common so its said..) any thoughts what the best way of sealing it.... re-attach, use some sealant....... I should just add I am exceptionally happy with my powerspeed even if it is leaking a little.... Cheers David GF04RCE.... every day is a Caterham day!!!! He heee!!... pictures here. Problem is every day seems to be a GT4 day too...!!! Link to comment Share on other sites More sharing options...
The Polisher Posted June 12, 2006 Share Posted June 12, 2006 I made a tapered drift and used it to flare the end of each primary untill it was a snug fit in the collector. Result......no leaks and no rattles. Dave H. Mad about S77ENS Link to comment Share on other sites More sharing options...
Graham King Posted June 12, 2006 Share Posted June 12, 2006 Hi, just got back from Powerspeed today having had mine fitted, Dave told me to use ordinary silicone sealant if it started leaking. Graham R7 GPK Superlight #85 Link to comment Share on other sites More sharing options...
allen Posted June 12, 2006 Share Posted June 12, 2006 Best to use flue sealer, from any plumbers merchants, it's red and lasts quite well. allen Link to comment Share on other sites More sharing options...
Myles Posted June 13, 2006 Share Posted June 13, 2006 Beer-cans and high-temp silicone... One of my primaries is loose enough to rattle slightly - needs more than just silicone to keep it sealed. Don't use Fire Gum for gawds sake though... Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
davef Posted June 13, 2006 Share Posted June 13, 2006 Best to use flue sealer, from any plumbers merchants, it's red and lasts quite well. But unelss you're careful it looks a mess (been there, etc). Use normal clear silicone sealant from any of the DIY sheds. Dave Link to comment Share on other sites More sharing options...
jano Posted June 14, 2006 Share Posted June 14, 2006 >Use normal clear silicone sealant from any of the DIY sheds. Excuse me for beeing slow, I just want to besure I understand this correctly. But you mean the normal stuff you use in your bathroom to seal up stuff like the edges off the bath tub? Won't catch fire if used on my red hot 4to1? /jano Link to comment Share on other sites More sharing options...
Kevsta Posted June 14, 2006 Share Posted June 14, 2006 You read correctly! Try setting fire to it. Link to comment Share on other sites More sharing options...
davef Posted June 14, 2006 Share Posted June 14, 2006 Correct - the normal stuff you might use in you bathroom, kitchen etc. It doesn't burn. I also used it on the exhaust manifold gasket (as did Dave @ Powerspeed when he fitted mine) - works a treat. Dave Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted April 29, 2008 Leadership Team Share Posted April 29, 2008 A question to those who use silicon sealant to seal the manifold/collector pipes - how long do you leave it to set before running the engine? Stu. Joint Area Representative MAD Sevens (Merseyside And District) www.superse7ens.co.uk..........the rebuild 😬 Link to comment Share on other sites More sharing options...
Beelzebub Posted April 29, 2008 Share Posted April 29, 2008 If there's a lambda probe in your pipe 😳 silicon sealer if used upstream can cause premature failure. D. Link to comment Share on other sites More sharing options...
Graham King Posted April 29, 2008 Share Posted April 29, 2008 Stu, I just smear a thin layer of silicone around the inside of the collector and the outside of the primaries, push together, leave for about 15 mins and then start the engine. It smokes a little to start with but never had a problem. My lambda sensor is in primary 4 inside engine bay so no problem with that. Graham. R7 GPK Superlight #85 Link to comment Share on other sites More sharing options...
I.Mupferit Posted April 29, 2008 Share Posted April 29, 2008 It can also kill the catalytic converter. Was going to say 'can also kill the cat' but in deference to OBNS's sensibilities, thought I should rewrite that. Brent (aka Arfur Nayo) 2.3 DURATEC SV You know when you've been AMMO'd 😬 R470.69 😬 Link to comment Share on other sites More sharing options...
prs Posted April 29, 2008 Share Posted April 29, 2008 RTV high temp, i've used it on my powerspeed for 5yrs and never had a problem Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted April 29, 2008 Leadership Team Share Posted April 29, 2008 Planning to use the cat so is RTV safe or what else may be ok? Lambda sensor is also in no.4 primary so upstream, but cat is obviously downstream. Stu. Joint Area Representative MAD Sevens (Merseyside And District) www.superse7ens.co.uk..........the rebuild 😬 Link to comment Share on other sites More sharing options...
prs Posted April 29, 2008 Share Posted April 29, 2008 Stu, your Lamda sensor is in the same position but I haven't got a cat on mine. However your joint is after the cat so see no reason why it wouldn't be ok. Phil Link to comment Share on other sites More sharing options...
ChrisHawkins Posted April 29, 2008 Share Posted April 29, 2008 I used Loctite 5920 high temp RTV, its been fine. K93 AMJ Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now