MVVS 2.5D RRV
08-01-2012, 06:38 PM
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MVVS 2.5D RRV
Hello Pe
I would be grateful if you could answer some questions about this engine:
1. Will the piston and liner set for recent production MVVS 2.5 diesels fit OK in this engine?
2. Is a factory header available?
3. If so, does the usual pipe for the 2.5 engine will fit up to it, with the supplied silicone coupling tube?
Thanks
I would be grateful if you could answer some questions about this engine:
1. Will the piston and liner set for recent production MVVS 2.5 diesels fit OK in this engine?
2. Is a factory header available?
3. If so, does the usual pipe for the 2.5 engine will fit up to it, with the supplied silicone coupling tube?
Thanks
10-09-2012, 07:44 PM
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RE: MVVS 2.5D RRV
I located a piston and liner for a current spec 2.5D. They fit the above engine perfectly.
Porting and timing in the new liner is a little different. I ended up leaving in the old liner. It must not be overly worn as the new piston makes a nice gas seal using it.
The old conrod was unbushed. Both little and big ends were worn. The current spec conrod (supplied fitted to the piston in th enew P&L set) is sturdier, and bronze bushed on the big end.
All fitted up with no issues, except I made a thicker back plate gasket to stop the crank pin binding on the disc valve. Valve clearance is good, no scores on the mating faces.
It's looking good.
Porting and timing in the new liner is a little different. I ended up leaving in the old liner. It must not be overly worn as the new piston makes a nice gas seal using it.
The old conrod was unbushed. Both little and big ends were worn. The current spec conrod (supplied fitted to the piston in th enew P&L set) is sturdier, and bronze bushed on the big end.
All fitted up with no issues, except I made a thicker back plate gasket to stop the crank pin binding on the disc valve. Valve clearance is good, no scores on the mating faces.
It's looking good.
