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ken
Agony Aunt - You have a car problem? Speak to Ken
Joined: March 6th, 2009, 1:40 am
Posts: 3675
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 Re: Exhaust manifold studs Russell, I always use a (good quality) small chisel to cut the remains of the old nuts off the studs since trying to undo them has such a low rate of success. If there's enough usable thread left, it's well worth a go. Also, brass nuts for reassembly and check the torque at about 500 mile intervals, even if you're using the super duper exhaust gaskets from Roy...  Russell wrote: Yeah no problem, my 2cv has just developed a hole in its manifold so I'm going to have to swap it which (I'm pretty sure) will mean snapping most of the studs, so I'll have had plenty of practice.
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| February 26th, 2015, 12:30 am |
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Russell
Firing on two.
Joined: November 29th, 2008, 10:05 pm
Posts: 9259
Location: West Sussex, U.K.
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Re: Exhaust manifold studs I've just been thinking much the same, destroy the nuts to save the studs and then brass nuts for reassembly. I've got a couple of sets of heads that need new studs in, I might do them first, just in case...
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samfieldhouse wrote: What I like about I2F is that there is no pretence of democracy.
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| February 26th, 2015, 12:35 am |
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J-dub
Aircooled Idiot
Joined: April 24th, 2010, 10:01 am
Posts: 5733
Location: Location Location
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Re: Exhaust manifold studs Russ do u want to borrow a nut splitter?
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1988 2cv 652cc
1993 Toyota Hilux Surf 3000cc runs on Bio Diesel
2004 Toyota Landcruiser Amazon 4200cc runs on Bio Diesel
1998 Daihatsu Hijet 1300cc
2005 Susuki Bandit 650cc
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| February 26th, 2015, 10:11 am |
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Ianredspecial
Firing on two.
Joined: June 22nd, 2014, 8:09 pm
Posts: 1294
Location: Reading, Berks UK
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Re: Exhaust manifold studs Is the welding done with engine in situ Russ?
Last edited by Ianredspecial on March 4th, 2015, 10:13 am, edited 1 time in total.
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| March 3rd, 2015, 8:31 pm |
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banjo
Firing on two.
Joined: June 5th, 2009, 9:17 am
Posts: 747
Location: Staffs & France
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Re: Exhaust manifold studs Jameswallace wrote: Russ do u want to borrow a nut splitter? Great tool 
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| March 3rd, 2015, 10:42 pm |
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Ianredspecial
Firing on two.
Joined: June 22nd, 2014, 8:09 pm
Posts: 1294
Location: Reading, Berks UK
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Re: Exhaust manifold studs It's blapping away merrily again and I've been distracted by other things. However winter is here and the car is very fumey, having the window open all winter will be miserable.
So i think I'm going to put on a used head. Haven't done that before, I guess it's easy though?
Any tips welcome. I suppose I should helicoil in some new studs before I fit it.
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| November 10th, 2015, 9:44 pm |
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bobh
Firing on two.
Joined: March 26th, 2010, 8:41 pm
Posts: 234
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Re: Exhaust manifold studs OK Helicoil is a bit expensive, but no more difficult than tapping oversize. You need to buy the kit, which is a special tap and the helical insert tool (a bit of tube with a slot in one end and handle on the other.) Once done, it is stronger than the original thread.
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| November 11th, 2015, 2:54 pm |
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Ianredspecial
Firing on two.
Joined: June 22nd, 2014, 8:09 pm
Posts: 1294
Location: Reading, Berks UK
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Re: Exhaust manifold studs Yes I did all the current ones with helicoil, I cocked one up though unfortunately. Hence will just swap the head now I think.
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| November 12th, 2015, 12:54 am |
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