[ROVERNET - UK] P6 interference/free running?

[Eric Russell]

I would ask if you had talked to Ruth for input.

Did you have the head gasket installed at the time?
Were you using 2000 TC pistons or 2200 pistons?

I have 2 cars with 2200 pistons (9:1).  The one engine
(now out and a spare) did about 56,000 miles with no
problem and the current car has 46,000 miles on the
engine.

Eric

--- Ron Venter <venterrh at telus.net> wrote:

> Nathan and Vern,
>                     You have me worried! I recently
> fitted a 2000 
> engine with new 9:1 pistons. With the head off, the
> crankshaft 
> rotated fully. With the head on but without the
> timing chain 
> connected, I could not turn the crankshaft a full
> 360 
> degrees  --  almost but not quite. With the timing
> chain on 
> everything rotates smoothly. What have I done wrong?
> The engine is 
> not yet back in the car, so I don't know if it
> actually runs.
>                                                 
> Regards,
>                                                     
>     Ron V.
> 
> At 09:09 AM 07-12-09, you wrote:
> >  I have
> > > one question. What is
> > > the difference of a free running design and a
> > > interference design?
> >
> >A free running or free wheeling engine has enough
> >clearance between the valves (when open) and the
> >pistons (when at Top Dead Center) that they don't
> >collide if the timing chain or belt fails and the
> >valve timing gets out of sync.
> >
> >An interference engine can bend valves or worse if
> the
> >chain/belt breaks.
> >
> >I believe the original P6 engine is free wheeling.
> >
> >Regards,
> >
> >Nathan
> >
> >
> >
> >
> > 
>
>____________________________________________________________________________________
> >Looking for last minute shopping deals?
> >Find them fast with Yahoo! 
> >Search. 
>
http://tools.search.yahoo.com/newsearch/category.php?category=shopping
> >
> >_______________________________________________
> >rovernet mailing list
> >rovernet at lyris.ccdata.com
> >To unsubscribe, go to this web page, look near the
> bottom and follow 
> >instructions:
> >http://mailman.nipltd.com/mailman/listinfo/rovernet
> >Back-up list and photos at:
> >http://autos.groups.yahoo.com/group/Rover_net/
> 
> 
> 
> _______________________________________________
> rovernet mailing list
> rovernet at lyris.ccdata.com
> To unsubscribe, go to this web page, look near the
> bottom and follow instructions:
> http://mailman.nipltd.com/mailman/listinfo/rovernet
> Back-up list and photos at:
> http://autos.groups.yahoo.com/group/Rover_net/
> 


Webmaster of The Rover Car Club of Canada
Website:  http://www.roverclub.ca/
Webmaster of a variety of sites from:
http://www.websrus.ca


      ____________________________________________________________________________________
Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile.  Try it now.  http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ