Isn't that a metric foot?xvivalve wrote:254 mm is ten inches Jon!
Steve
Sprint manifold+downpipe removal
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Carledo
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Re: Sprint manifold+downpipe removal
Steve
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
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Mad Mart
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Re: Sprint manifold+downpipe removal
Yes, 3/8 UNF is the correct thread size for the manifold to downpipe.
A metric foot is 300mm. not a real unit of measure just something made up because it's similar to 12".
A metric foot is 300mm. not a real unit of measure just something made up because it's similar to 12".
Sprintless for the first time in 35+ years. 
... Still Sprintless.
Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
... Still Sprintless.Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
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Jon Tilson
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Re: Sprint manifold+downpipe removal
lol
Typo missed out the point...
Jonners
Typo missed out the point...
Jonners
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.
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tarynus
Re: Sprint manifold+downpipe removal
I'll have to repair the threads, broke two of those manifold to downpipe screws yesterday(never would of got them without the manifold out)...
Meanwhile there is clear access i'd like to sort out the steering column which has movement, i'll create a new post not to mix up things
Meanwhile there is clear access i'd like to sort out the steering column which has movement, i'll create a new post not to mix up things
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tarynus
Re: Sprint manifold+downpipe removal
Hi everyone,
I'm going to have to repair the threads on my manifold, but I'm not quite sure what would be best (and cheapest)
First I thought of using a metric tap and drill kit M12 or M11 (hard to find at a decent price), would that work?
Or would it be best to use 3/8 helicoils (but again a decent kit seems to be quite expensive, almost half the price of a new manifold...).
Anyway I'm a bit uncertain about what option to choose, what would you do with the same problem?
I'm going to have to repair the threads on my manifold, but I'm not quite sure what would be best (and cheapest)
First I thought of using a metric tap and drill kit M12 or M11 (hard to find at a decent price), would that work?
Or would it be best to use 3/8 helicoils (but again a decent kit seems to be quite expensive, almost half the price of a new manifold...).
Anyway I'm a bit uncertain about what option to choose, what would you do with the same problem?
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Mad Mart
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Re: Sprint manifold+downpipe removal
Sprintless for the first time in 35+ years. ... Still Sprintless.
Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
... Still Sprintless.Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
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tarynus
Re: Sprint manifold+downpipe removal
Thanks madmart, i'll try with one of these, given that the orignal thread is 3/8 approximately 9,54 mm, what metric kit do I need to use? Would an M10 kit be enough (10mm is the size of the helicoil or size of the drill?)?
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Mad Mart
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Re: Sprint manifold+downpipe removal
Sorry, that was just an example. I actually bought a 3/8" UNF and a 5/16" UNF kit. They should be on the bay somewhere.
Sprintless for the first time in 35+ years. ... Still Sprintless.
Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
... Still Sprintless.Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
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Jon Tilson
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Re: Sprint manifold+downpipe removal
I would carry on drilling the old bolts out. Then you can run a tap down to finish cleaning up.
Use a UNF stud - the original thread is unf on these manifolds, but only the top 2 positions. I still use a bolt at the bottom so the downpipe will pull clear.
You can use 3 studs but the pipe may not pull off even jacking up the engine.
You could use metric studs if they are easier, but you cant then use the original thread which will clean up if you drill carefully.
Jonners
Use a UNF stud - the original thread is unf on these manifolds, but only the top 2 positions. I still use a bolt at the bottom so the downpipe will pull clear.
You can use 3 studs but the pipe may not pull off even jacking up the engine.
You could use metric studs if they are easier, but you cant then use the original thread which will clean up if you drill carefully.
Jonners
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.
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tarynus
Re: Sprint manifold+downpipe removal
Hi john,
I ordered this kit this morning to go metric, does that seem fine to you? http://m.ebay.co.uk/itm/300918012701?nav=SEARCH
I'm not sure i would have been able to save the original thread anyway as my bad drilling might have touched it
...
I ordered this kit this morning to go metric, does that seem fine to you? http://m.ebay.co.uk/itm/300918012701?nav=SEARCH
I'm not sure i would have been able to save the original thread anyway as my bad drilling might have touched it
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Jon Tilson
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Re: Sprint manifold+downpipe removal
You can only try it.
If it doesnt work I'm sure we (Jeroen probably) can find you another manifold.
Jonners
If it doesnt work I'm sure we (Jeroen probably) can find you another manifold.
Jonners
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.
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tarynus
Re: Sprint manifold+downpipe removal
Thanks, i ll let you know how it went hopefully i wont need a new one!
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tarynus
Re: Sprint manifold+downpipe removal
Does anyone know of a good website I could get exhaust studs, washer, nuts etc? I found them on ebay but not alltogether i don't really want to pay several shipping charges...
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tarynus
Re: Sprint manifold+downpipe removal
Hi everyone,
I ordered 5 new bolts for the manifold/engine fit from Rimmers, but was quite surprised when i compared them to the original as they are about 5mm longer. Is this normal? will it still fit properly or will i need extra thick washers to compensate?
I ordered 5 new bolts for the manifold/engine fit from Rimmers, but was quite surprised when i compared them to the original as they are about 5mm longer. Is this normal? will it still fit properly or will i need extra thick washers to compensate?
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