clutch slave cylinder mount bolt info

catmanboo · Postby **catmanboo** » 29 Jan 2012 04:28

a mundane question: what's the length & thread pitch (SAE or metric?)of the clutch slave cylinder bolts? I need to restore threaded holes in bell housing; p.o. buggered them badly, not sure the ones I removed were correct. thanks-Jerry

Neil_W · Postby **Neil_W** » 29 Jan 2012 07:52

From spec sheet think it is metric 8 mm - length would I expect be the length of the securing flange of the slave cylinder + width of Gearbox flange minus a few mm's.

You can download a Works Manual from www.triumph-cars.co.uk under section PDF's

staningrimsby · Postby **staningrimsby** » 29 Jan 2012 08:00

Cheers for that Neil,

I found that a really interesting web site, even nabbed me a copy of the manuals as well [:)].

1980 2.0 16v DHC - Polly.

Dave Dyer · Postby **Dave Dyer** » 29 Jan 2012 09:03

Hi Jerry,

What I did was to drill and tap the holes 10mm and also drilled out the holes in the clutch slave cylinder to match.
I found the thread was too poor to retap the hole the original size.
And didn't want to take the chance of it failing miles away from home!

Cheers. Dave

Beans · Postby **Beans** » 29 Jan 2012 09:36

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Dave Dyer

... drill and tap the holes 10mm ... <hr height="1" noshade id="quote"></blockquote id="quote">
Better to use an M8 thread repair from the like of Helicoil or Recoil ...

1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)
[url="http://www.tr7beans.blogspot.com/"]My Weblog[/url]</center>

Odd · Postby **Odd** » 29 Jan 2012 11:02

<blockquote id="quote">quote:<hr height="1" noshade id="quote"> it is metric 8 mm - length would I expect be the length of the securing flange of the slave cylinder
+ width of Gearbox flange minus a few mm's. <hr height="1" noshade id="quote"></blockquote id="quote"> OK, the securing flange of the slave cylinder I have in hand is 10mm thick.
Anyone have a clutch housing on the bench/shelf to take that measure from?
To this should be added:
the thickness of that sheet metal ("rear adaptor plate") fitted to the engine block and
the thickness of the washer(s) used.

Then you can decide on a suitable length screw for this application...
And as always I recommend stainless part threaded screws (with an aluminium based
antiseize paste) so you can easily take it apart twenty plus years from now... [:)]

My two 1980 Wedges...

john 215 · Postby **john 215** » 29 Jan 2012 11:13

Hi,

I always drill the blind hole deeper and tap the tread down as far as poss and longer bolts.

Cheers John

LIVE LIFE A QUARTER OF A MILE AT A TIME!

1976 Speke FHC Beauty

1979 3.5 FHC(STATUS PENDING!!)

1982 2.0 DHC NOW A 4.6,ON THE ROAD NOW KICKING AR5E !!!!

Dave Dyer · Postby **Dave Dyer** » 29 Jan 2012 11:33

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Beans
Better to use an M8 thread repair from the like of Helicoil or Recoil ...<hr height="1" noshade id="quote"></blockquote id="quote">

Hi Beans,
That would probably be a better option, I always thought it would have to be done at a machine shop, I didn't realise there was a DIY version. Might be worth looking out for a set.

Cheers, Dave

catmanboo · Postby **catmanboo** » 29 Jan 2012 17:23

many thanks, guys, especially Neil for spec sheet posting. as there shall be no more threaded bare aluminum holes anywhere on either the head or bell-housing, I want to get it right the first time. as is well known, threading anything into bare aluminum is a crap-shoot, eventually you'll have problems. found that out years ago on my old Harley shovelhead.there's now a threaded insert seized onto the front spark plug, & studs where bolts used to go! gonna drop the sub-frame today, blast & POR-15 it, & photo-document the engine bay prior to stripping it for repaint...Jerry

DNK · Postby **DNK** » 29 Jan 2012 17:36

Jerry, what part of US you in?

Don
"No More Cars For You"
71 TR6- Perpetual remodel
80 TR7 V8 Kick in the pants

jclay (RIP 2018) · Postby **jclay (RIP 2018)** » 29 Jan 2012 20:46

I keep telling you guy to buy two bolts about 1/2" longer to start the slave cylinder with, then remove one and replace it with the original, then do the other.

No more stripped out holes.

Does anyone listen?

Clay

[url="http://web.me.com/jclaythompson/Site/Welcome.html"]My Triumph Site[/url], [url="http://web.me.com/jclaythompson/Technical"]Technical Stuff[/url], [url="https://public.me.com/jclaythompson"]My Public Folder[/url], [url="http://web.me.com/jclaythompson/tr8/Welcome.html"]My TR8 Site[/url]

Beans · Postby **Beans** » 29 Jan 2012 22:40

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by jclay

... Does anyone listen? ... <hr height="1" noshade id="quote"></blockquote id="quote">
Nope, and don't read either [:p]

<center>

1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)
[url="http://www.tr7beans.blogspot.com/"]My Weblog[/url]</center>

DNK · Postby **DNK** » 30 Jan 2012 01:48

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Beans

[quote]Originally posted by jclay

... Does anyone listen? ... <hr height="1" noshade id="quote"></blockquote id="quote">
Nope, and don't read either [:p]

<center>

1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)
[url="http://www.tr7beans.blogspot.com/"]My Weblog[/url]</center>
<hr height="1" noshade id="quote"></blockquote id="quote">

Rebel!

Don
"No More Cars For You"
71 TR6- Perpetual remodel
80 TR7 V8 Kick in the pants

FI Spyder · Postby **FI Spyder** » 30 Jan 2012 15:12

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by jclay

Does anyone listen?
<hr height="1" noshade id="quote"></blockquote id="quote">

I do but when I overhauled my slave cylinder I didn't have any problem putting it back on. When I do my clutch this winter I may and will be paying attention to it.

- - - - TR7 Spider - - - - - - - - 1978 Spitfire - - - - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - - Yellow TCT

silverseven · Postby **silverseven** » 31 Jan 2012 01:21

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by FI Spyder

...... when I overhauled my slave cylinder I didn't have any problem putting it back on.....
<hr height="1" noshade id="quote"></blockquote id="quote">

me neither .....and I had mine on and off again a couple of times!

Ron.

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clutch slave cylinder mount bolt info

clutch slave cylinder mount bolt info

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