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Browsing this Thread:
1 Anonymous Users
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Re: how to fix exhaust leak, at the head into extractors |
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Home away from home  
Joined:
2003/10/23 9:09
From NZ
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Registered Users
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I just run high temp RTV and no gasket (inlet or exhaust). Works fine. Don't think it would work too well without good mating surfaces though.
Posted on: 2010/6/29 12:18
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1200 Coupe Racecar, mid-mount A13, C/R 60L g'box.
Previous "Datsuns": B310 sedan worked A13. B310 coupe A14/dogleg 5-spd. 260C sedan, L26, 3-spd man col chng, 6-seater great tow car!. VL wagon, RB30, 5-spd. Nissan Bluebird SSS U13, SR20, 5-spd.[i...
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Re: how to fix exhaust leak, at the head into extractors |
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No life (a.k.a. DattoMaster)  
Joined:
2003/12/3 7:56
From Christchurch NZ
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mainseal will only work untill you load up your chassis enough for the headers to flex. (Like a big hard launch that really tweaks the mounts) Then the maniseal cracks and falls out. My headers leak at the head 'cos I've got ported out zhorst ports and can't run an off the shelf gasket. I've found that maniseal works for a while, but then (ussually after doing burnouts) it cracks and falls out.
Next time I try to remedy it, I'm going to try rtv.
Posted on: 2010/6/29 4:55
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Forced Induction!
Because everyone knows you don't bring a knife to a gunfight!
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Re: how to fix exhaust leak, at the head into extractors |
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No life (a.k.a. DattoMaster) Joined:
2008/10/10 22:02
From Melbourne Australia (and likely under the car)
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As an alternative to the gasket goo/glue stuff, one trick I've used (and in a pinch this trick can be used if you are forced to re-use an old gasket) is to smear grease around the gasket - both sides, making rings/boxes around where the manifold/flanges/port holes are. It seems to help teh gasket snug up/and also slightly 'burns in' or something. It will smoke a little for a minute or two after the very first start up after fitting it, but fine thereafter.
Posted on: 2010/6/27 21:22
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John McKenzie
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Re: how to fix exhaust leak, at the head into extractors |
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Home away from home Joined:
2010/2/13 1:35
From Ringwood, Melbourne, AUS
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Maniseal poo, HT RTV goo or use the std thick washers from the std manifold to really spread the pressure and get a good seal?
Posted on: 2010/6/27 12:19
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Deano
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Re: how to fix exhaust leak, at the head into extractors |
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No life (a.k.a. DattoMaster) 
Joined:
2008/1/20 11:52
From Perth WA AUS
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Registered Users
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Maybe try manwhoreIseal!
Posted on: 2010/6/27 10:55
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Datsun 1200 2Dr sedan.
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Re: how to fix exhaust leak, at the head into extractors |
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No life (a.k.a. DattoMaster) 
Joined:
2003/2/10 5:17
From Freo
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extractor type gaskets are a little more forgiving than standard gaskets,
and some maniseal (CRC product) can help..
Posted on: 2010/6/27 9:51
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'68 Thou Wagon,(home now) up and running
'69 2 door project, the yellow thing,
A12A Project motor, for the yellow thing.
A15 PSI Project Motor
'72 CB750k,
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Re: how to fix exhaust leak, at the head into extractors |
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No life (a.k.a. DattoMaster) 
Joined:
2008/3/30 3:28
From Albany, Perth Australia
Group:
Registered Users
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check to see how bent the surface is on the extractors, or maybe the studs on the head arent letting you tighten them up enough so check if the studs are loose....that really could be the only thing stopping up other then the head being warped on that side. I dont think that a double gasket will work if it does dont know for how long
Posted on: 2010/6/27 9:49
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1200 Smerf Mobile
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how to fix exhaust leak, at the head into extractors |
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Guest_
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slight leak into the extractors from cyl 2 and 3.
used to be at cyl 4 as the flange was not quite flush.
just wondering if double gasketing the seal will fix this.
I figued it would squish the gasket more where it seals better and seal adequately where it currently doesnt.
its only a slight leak and im just looking for an easy fix lol
thanks
Posted on: 2010/6/27 8:59
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