Valve rocker clearances

[Maurice Paton]

I have just completed a total rebuild on my TC engine during which the camshaft was replace with a standard 'Crane' cam from Moss Motors. Does anyone have any information regarding recommended rocker clearances using this cam? Currently they are set at 15 thou. Maurice TC9357 [Non-text portions of this message have been removed]

[Liz Harris]

Hi Maurice, when you say `standard`, do you mean Crane`s replacement for an original profile and lift? in which case should`nt they should be set at 19 thou....on a hot motor.... Tweed TC 2259 Cambridge, England. Maurice Paton maurice.paton@wam.co.nz> wrote: I have just completed a total rebuild on my TC engine during which the camshaft was replace with a standard 'Crane' cam from Moss Motors. Does anyone have any information regarding recommended rocker clearances using this cam? Currently they are set at 15 thou. Maurice TC9357 [Non-text portions of this message have been removed] Yahoo! Groups Links --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed]

[Maurice Paton]

Maybe or maybe not. Although the amount of lift is the same the actual profile of the crane cam is quite different. The cam lobes are considerably wider (reduced wear) and the base circle much larger in radius. One's first reaction when receiving the crane cam is that you have been sent the wrong one but it does in fact fit. When used in the TD the rocker clearances for the XPAG were reduced to 12 thou. Why? -----Original Message----- From: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] On Behalf Of Liz Harris Sent: Monday, 27 June 2005 11:40 a.m. To: Maurice Paton; mg-tabc@yahoogroups.com Subject: Re: [mg-tabc] Valve rocker clearances Hi Maurice, when you say `standard`, do you mean Crane`s replacement for an original profile and lift? in which case should`nt they should be set at 19 thou....on a hot motor.... Tweed TC 2259 Cambridge, England. Maurice Paton maurice.paton@wam.co.nz> wrote: I have just completed a total rebuild on my TC engine during which the camshaft was replace with a standard 'Crane' cam from Moss Motors. Does anyone have any information regarding recommended rocker clearances using this cam? Currently they are set at 15 thou. Maurice TC9357 [Non-text portions of this message have been removed] Yahoo! Groups Links --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed] Yahoo! Groups Links

[Neil Nelson]

Maurice, Crane Cams has a website that has access to all specifications for the cams they sell. If you know which cam you received from Moss you can access their site and download the spec sheet. It shows the valve lash and degrees of lift. (There should have been one of these sheets in the box with the cam when you bought it from Moss.) Just do a Google search for Crane Cams and you will find their website. Neil Nelson TC 0526 -----Original Message----- From: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com]On Behalf Of Liz Harris Sent: Sunday, June 26, 2005 7:40 PM To: Maurice Paton; mg-tabc@yahoogroups.com Subject: Re: [mg-tabc] Valve rocker clearances Hi Maurice, when you say `standard`, do you mean Crane`s replacement for an original profile and lift? in which case should`nt they should be set at 19 thou....on a hot motor.... Tweed TC 2259 Cambridge, England. Maurice Paton maurice.paton@wam.co.nz> wrote: I have just completed a total rebuild on my TC engine during which the camshaft was replace with a standard 'Crane' cam from Moss Motors. Does anyone have any information regarding recommended rocker clearances using this cam? Currently they are set at 15 thou. Maurice TC9357 [Non-text portions of this message have been removed] Yahoo! Groups Links --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed] Yahoo! Groups Links

[Liz Harris]

....sorry Peter,a warm engine......as for the 12 thou on a TD....d`know !!! Peter Roberts mgtc@comcast.net> wrote: "hot motor"?????? _Peter

----- Original Message ----- From: "Liz Harris" To: "Maurice Paton" ; Sent: Sunday, June 26, 2005 7:39 PM Subject: Re: [mg-tabc] Valve rocker clearances > Hi Maurice, when you say `standard`, do you mean Crane`s replacement for > an original profile and lift? in which case should`nt they should be set > at 19 thou....on a hot motor.... > Tweed > TC 2259 Cambridge, England. > > Maurice Paton wrote: > I have just completed a total rebuild on my TC engine during which the > camshaft was replace with a standard 'Crane' cam from Moss Motors. Does > anyone have any information regarding recommended rocker clearances > using this cam? Currently they are set at 15 thou. > > Maurice TC9357 > > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with > voicemail > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed]

[Rothgene Roth]

Group, The valve setting for the Crane cam shaft part #340-0002, grind #553-OS is: Intake .018, Exhaust .020 HOT. This is the cam shaft referred to as the " standard " grind. They state: " If pushrods are too long use Crane pushrod part # 905-0003. I have this set up in my TC. Crane PH. # 386 258 6174 Gene Roth

----- Original Message ----- From: Liz Harrislizandtweed@yahoo.co.uk> To: Peter Robertsmgtc@comcast.net> ; Maurice Patonmaurice.paton@wam.co.nz> ; mg-tabc@yahoogroups.commg-tabc@yahoogroups.com> Sent: Monday, June 27, 2005 3:12 PM Subject: Re: [mg-tabc] Valve rocker clearances ....sorry Peter,a warm engine......as for the 12 thou on a TD....d`know !!! Peter Roberts mgtc@comcast.netmgtc@comcast.net>> wrote: "hot motor"?????? _Peter ----- Original Message ----- From: "Liz Harris" To: "Maurice Paton" ; Sent: Sunday, June 26, 2005 7:39 PM Subject: Re: [mg-tabc] Valve rocker clearances > Hi Maurice, when you say `standard`, do you mean Crane`s replacement for > an original profile and lift? in which case should`nt they should be set > at 19 thou....on a hot motor.... > Tweed > TC 2259 Cambridge, England. > > Maurice Paton wrote: > I have just completed a total rebuild on my TC engine during which the > camshaft was replace with a standard 'Crane' cam from Moss Motors. Does > anyone have any information regarding recommended rocker clearances > using this cam? Currently they are set at 15 thou. > > Maurice TC9357 > > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with > voicemail > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed] Yahoo! Groups Links [Non-text portions of this message have been removed]

[Rothgene Roth]

Hi

----- Original Message ----- From: Rothgene Rothrothgene@msn.com> To: Peter Robertsmgtc@comcast.net> ; Maurice Patonmaurice.paton@wam.co.nz> ; mg-tabc@yahoogroups.commg-tabc@yahoogroups.com> ; Liz Harrislizandtweed@yahoo.co.uk> Sent: Tuesday, June 28, 2005 10:23 AM Subject: Re: [mg-tabc] Valve rocker clearances Group, The valve setting for the Crane cam shaft part #340-0002, grind #553-OS is: Intake .018, Exhaust .020 HOT. This is the cam shaft referred to as the " standard " grind. They state: " If pushrods are too long use Crane pushrod part # 905-0003. I have this set up in my TC. Crane PH. # 386 258 6174 Gene Roth ----- Original Message ----- From: Liz Harrislizandtweed@yahoo.co.uk> To: Peter Robertsmgtc@comcast.net> ; Maurice Patonmaurice.paton@wam.co.nz> ; mg-tabc@yahoogroups.commg-tabc@yahoogroups.com> Sent: Monday, June 27, 2005 3:12 PM Subject: Re: [mg-tabc] Valve rocker clearances ....sorry Peter,a warm engine......as for the 12 thou on a TD....d`know !!! Peter Roberts mgtc@comcast.netmgtc@comcast.net>> wrote: "hot motor"?????? _Peter ----- Original Message ----- From: "Liz Harris" To: "Maurice Paton" ; Sent: Sunday, June 26, 2005 7:39 PM Subject: Re: [mg-tabc] Valve rocker clearances > Hi Maurice, when you say `standard`, do you mean Crane`s replacement for > an original profile and lift? in which case should`nt they should be set > at 19 thou....on a hot motor.... > Tweed > TC 2259 Cambridge, England. > > Maurice Paton wrote: > I have just completed a total rebuild on my TC engine during which the > camshaft was replace with a standard 'Crane' cam from Moss Motors. Does > anyone have any information regarding recommended rocker clearances > using this cam? Currently they are set at 15 thou. > > Maurice TC9357 > > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with > voicemail > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed] Yahoo! Groups Links [Non-text portions of this message have been removed]

[Peter Roberts]

I think you and your engine will be a lot happier if you adjust the valves on a cold engine. Even a warm engine will give you false (i.e. too tight) readings. At least, that's what I've been told and follow on my car. _Peter

----- Original Message ----- From: Liz Harris To: Peter Roberts ; Maurice Paton ; mg-tabc@yahoogroups.com Sent: Monday, June 27, 2005 6:12 PM Subject: Re: [mg-tabc] Valve rocker clearances ....sorry Peter,a warm engine......as for the 12 thou on a TD....d`know !!! Peter Roberts mgtc@comcast.net> wrote: "hot motor"?????? _Peter ----- Original Message ----- From: "Liz Harris" To: "Maurice Paton" ; Sent: Sunday, June 26, 2005 7:39 PM Subject: Re: [mg-tabc] Valve rocker clearances > Hi Maurice, when you say `standard`, do you mean Crane`s replacement for > an original profile and lift? in which case should`nt they should be set > at 19 thou....on a hot motor.... > Tweed > TC 2259 Cambridge, England. > > Maurice Paton wrote: > I have just completed a total rebuild on my TC engine during which the > camshaft was replace with a standard 'Crane' cam from Moss Motors. Does > anyone have any information regarding recommended rocker clearances > using this cam? Currently they are set at 15 thou. > > Maurice TC9357 > > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with > voicemail > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > ------------------------------------------------------------------------------ Yahoo! Messenger NEW - crystal clear PC to PC calling worldwide with voicemail [Non-text portions of this message have been removed]

[Rothgene Roth]

Peter, Your engine will be a lot happier if you adjust the valves on a hot engine, the reason being that you are operating your engine at the elevated temperature and everything is now stabilized, everything in the engine expands & contracts at a different rate, and it is at this time that clearance should be to specification. Nuff said. Gene Roth

----- Original Message ----- From: Peter Robertsmgtc@comcast.net> To: Liz Harrislizandtweed@yahoo.co.uk> ; Maurice Patonmaurice.paton@wam.co.nz> ; mg-tabc@yahoogroups.commg-tabc@yahoogroups.com> Sent: Tuesday, June 28, 2005 11:27 AM Subject: Re: [mg-tabc] Valve rocker clearances I think you and your engine will be a lot happier if you adjust the valves on a cold engine. Even a warm engine will give you false (i.e. too tight) readings. At least, that's what I've been told and follow on my car. _Peter ----- Original Message ----- From: Liz Harris To: Peter Roberts ; Maurice Paton ; mg-tabc@yahoogroups.commg-tabc@yahoogroups.com> Sent: Monday, June 27, 2005 6:12 PM Subject: Re: [mg-tabc] Valve rocker clearances ....sorry Peter,a warm engine......as for the 12 thou on a TD....d`know !!! Peter Roberts mgtc@comcast.netmgtc@comcast.net>> wrote: "hot motor"?????? _Peter ----- Original Message ----- From: "Liz Harris" To: "Maurice Paton" ; Sent: Sunday, June 26, 2005 7:39 PM Subject: Re: [mg-tabc] Valve rocker clearances > Hi Maurice, when you say `standard`, do you mean Crane`s replacement for > an original profile and lift? in which case should`nt they should be set > at 19 thou....on a hot motor.... > Tweed > TC 2259 Cambridge, England. > > Maurice Paton wrote: > I have just completed a total rebuild on my TC engine during which the > camshaft was replace with a standard 'Crane' cam from Moss Motors. Does > anyone have any information regarding recommended rocker clearances > using this cam? Currently they are set at 15 thou. > > Maurice TC9357 > > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with > voicemail > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > ------------------------------------------------------------------------------ Yahoo! Messenger NEW - crystal clear PC to PC calling worldwide with voicemail [Non-text portions of this message have been removed] Yahoo! Groups Links [Non-text portions of this message have been removed]

[Rick Waters]

I use this Cam, and I just set both to 19 thou hot. BTW, I did not need new pushrods, perhaps because my rockers have been refaced at the valve stem end. I wonder if using new rockers would necessitate the shorter pushrods. If so, can pushrods be shortened by a competent machine shop. It seems the ends are just pushed in to the tubular rods, then the rods are hammered to hold the ends in place. -rick Rothgene Roth rothgene@msn.com> wrote: Hi

----- Original Message ----- From: Rothgene Roth To: Peter Roberts ; Maurice Paton ; mg-tabc@yahoogroups.com ; Liz Harris Sent: Tuesday, June 28, 2005 10:23 AM Subject: Re: [mg-tabc] Valve rocker clearances Group, The valve setting for the Crane cam shaft part #340-0002, grind #553-OS is: Intake .018, Exhaust .020 HOT. This is the cam shaft referred to as the " standard " grind. They state: " If pushrods are too long use Crane pushrod part # 905-0003. I have this set up in my TC. Crane PH. # 386 258 6174 Gene Roth ----- Original Message ----- From: Liz Harris To: Peter Roberts ; Maurice Paton ; mg-tabc@yahoogroups.com Sent: Monday, June 27, 2005 3:12 PM Subject: Re: [mg-tabc] Valve rocker clearances ....sorry Peter,a warm engine......as for the 12 thou on a TD....d`know !!! Peter Roberts > wrote: "hot motor"?????? _Peter ----- Original Message ----- From: "Liz Harris" To: "Maurice Paton" ; Sent: Sunday, June 26, 2005 7:39 PM Subject: Re: [mg-tabc] Valve rocker clearances > Hi Maurice, when you say `standard`, do you mean Crane`s replacement for > an original profile and lift? in which case should`nt they should be set > at 19 thou....on a hot motor.... > Tweed > TC 2259 Cambridge, England. > > Maurice Paton wrote: > I have just completed a total rebuild on my TC engine during which the > camshaft was replace with a standard 'Crane' cam from Moss Motors. Does > anyone have any information regarding recommended rocker clearances > using this cam? Currently they are set at 15 thou. > > Maurice TC9357 > > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with > voicemail > > [Non-text portions of this message have been removed] > > > > > Yahoo! Groups Links > > > > > > --------------------------------- Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail [Non-text portions of this message have been removed] Yahoo! Groups Links [Non-text portions of this message have been removed] Yahoo! Groups Links -Rick Waters __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com [Non-text portions of this message have been removed]