|
|
|
|
| Author |
|
|
Registered
Join Date: Mar 2005
Posts: 743
|
RSR case shuffle /throughbolt mod
Hello all.
Can anyone provide detail about the special throughbolts used on the RSR to reduce shuffle? I assume the oilways were diverted somehow, ? We are considering having some specially made...any takers? Kind regards David |
||
05-29-2006, 12:53 AM
|
|
|
Registered
Join Date: Feb 2000
Location: London, UK
Posts: 2,349
|
As far as I remember the crankcase through bolts for the 2.8 RSR utilised a finer pitch (1.25) thread - still used the passages for oilways.
The finer-pitch bolts were then used for the '83-on SC models.
__________________
Andy M&W 904 ... now gone GT-style 356C ... also gone |
||
|
05-29-2006, 02:04 AM
|
|
|
Registered
Join Date: Mar 2005
Posts: 743
|
thanks for that, Andy.
yes I also think that they are fine pitch.. The specific mod we are plaznning is to use the thro bolt with a swelling in the middle, a tight sliding fit in the case bore.. This will of course block the oilway at that point.. Kind regards David |
||
|
05-29-2006, 03:25 AM
|
|
|
Registered
Join Date: Jan 2003
Location: Langley,B.C.
Posts: 12,003
|
The bolts with the "swelling" did not block the oil way, IIRC. They were necked down and the "swelling" in the center section is the same OD as both ends. They were done like this to save some weight. The "swelling" was left in to aborb/minimize harmonics that may have been created.
Cheers
__________________
Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
||
|
05-30-2006, 11:53 AM
|
|
|
Registered
Join Date: Mar 2005
Posts: 743
|
Thanks, Catca.
Yes, I have seen those..as you say they do not act to shuflle pin at all.. But I belive there are also some which actually do form a tight fit..can anyone confirm? Kind regards David |
||
|
05-31-2006, 01:43 AM
|
|
|
Registered
Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
Posts: 1,580
|
HI yes i have some RSR 3.0 lt through bolts and they do act as shuffle pins with one side ground off for the oil way, the cases are bored to fit them, if you are intrested www.bsmotorsport.co.uk are making sets of through bolts and exchange/mod your's cases now
regards mike
__________________
Regards mike 1983 911 SC sport, 1982 mini city |
||
|
06-01-2006, 04:56 AM
|
|
|
|
3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
|
Will these work in any early case? Specifically a 1R mag case?
__________________
- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
||
|
06-01-2006, 07:23 AM
|
|
|
Registered
Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
Posts: 1,580
|
HI should not be a prob', FAX neil at BSMotorsport on UK+ 01296 658253 for more info, i will be seeing him on sunday and will find out more.
regards mike
__________________
Regards mike 1983 911 SC sport, 1982 mini city |
||
|
06-02-2006, 01:43 AM
|
|
|
3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
|
I didn't fax Neil yet, but am curious what the service costs. Mike, what have you learned? I am leery of shipping my case to England for machine work, not because of the distance, but because of the potential for disaster in shipping. My numbers matching case is priceless to me.
__________________
- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
||
|
06-23-2006, 09:04 AM
|
|
|
Registered
Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
Posts: 1,580
|
HI i have been i touch with my bruv' and the bolts are delayed, the machine work can be done with you he said, send a E-mail to neil@bsmotorsport.co.uk or fax for more info
regards mike |
||
|
06-23-2006, 10:58 AM
|
|
|
3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
|
Done.
__________________
- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
||
|
06-23-2006, 11:10 AM
|
|
 |
| Thread Tools | |
| Rate This Thread | |
|
|
