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View Full Version : Manifold wont come off


NovaBoi92
22-09-08, 02:32 PM
i need to take the exhaust manifold off to switch it with my SR manifold. but the bolts have rounded and wont come off and one of them has snapped :( how would i get it off?
Spudly
22-09-08, 02:34 PM
Cut the heads of the bolts and then have them extracted, or you could try tapping round with a hammer and chisel?
BIGS
22-09-08, 02:36 PM
smack on a smaller socket and use lots of wd40 or gt35
BIGS
22-09-08, 02:36 PM
and try and heat the manifold up
NovaBoi92
22-09-08, 02:37 PM
ok worth a try thanks
white2lSR
22-09-08, 03:25 PM
soak them every day for a week with WD40 or similar. Then get some vice grips on them.
Stoo
22-09-08, 03:29 PM
just drive into your garage til it falls off
mikey14sr
22-09-08, 07:01 PM
Try bashing a 1/2" sized socket on, that normally works for me, when it doesn't and they round off with that, I bash a 12mm on and if that fails then out comes the drill.
hagger
22-09-08, 08:26 PM
just drive into your garage til it falls off

LMFAO!!!lol
burgo
22-09-08, 09:07 PM
surely heating the manifold will make it harder? as the manifold would expand and make the bolts tighter
auzzy-b
22-09-08, 09:39 PM
mould grips...?? or cut a slot in them using a hack saw blade, then rachet and flat head them off,anticlockwise!!!ha. Last resort tak sumthing 2 them with a welder...off in no time:thumb:
Asa-James
22-09-08, 10:48 PM
sometimes the heat works to loosen, dont know why but its worked for me before. the only bugger then is heating it too much and having hardened steel which doesnt drill out too easily...
loggyboy
23-09-08, 12:35 AM
sometimes the heat works to loosen, dont know why

its the difference in expansion and contraction rates of the two metals, it breaks them apart when theyve seized with rust.



mould grips...??

PMSL @ mould grips!!!!

http://jennifersaylor.files.wordpress.com/2008/06/mole.jpggrips

http://zerografx.net/warp_backup/files2/AustinPowers_Mole.jpggrips

http://i19.ebayimg.com/01/i/07/01/06/09_1_b.JPGgrips
Asa-James
23-09-08, 01:39 AM
moley moley moley
Spudly
23-09-08, 01:44 AM
Clamp with MOLEgrips and beat repeatedly with a hammer lol
NovaBoi92
23-09-08, 10:31 AM
lol loggyboy lol
mikey14sr
23-09-08, 04:59 PM
surely heating the manifold will make it harder? as the manifold would expand and make the bolts tighter

Stud= steel, nut=copper (at least they should be), the copper should expand faster than the steel, therefore heating the nuts should loosen them enough. I still say bashing a slightly smaller socket on will work though.
Pistol Pete
23-09-08, 05:12 PM
Got it off yet? The manifold i mean?!
NovaBoi92
23-09-08, 05:34 PM
drove the car to local mechanic and they are going to take it off for me on saturday so i can put the new one on :D i know, should do it myself but ill probably end up fooking it up and. . .