Mr Goodkat
New Member
Hello!
When I rebuilt my engine last winter I was quite suprised about the non-ideal construction of the whole rocker assambly. The idea of having cast aluminum rockers rubbig against the Steel shaft is as many of you probably already know no good at all. Probably very cheep to manufacture but that is its only avantage. The problem became even more of a problem when the suplie of original Rover rocker shaft is drying up and the shafts and rockers i got hold of became noisy after less then 500 km. Anyway, when some thorough googeling couldn't help me i dessided to make my own rocker shafts and mount some bronze bushing in the original rocker arms.
The Shaft is 20 mm H7 polished steel shaft, cant remember what type of steel right know but is hard enough (170 HB i think)
The bearings is FB-092-20 bronze bushing, which sould last longer then the engine, one of the avantages whit bronze bushing is that they dont need much lubrication which means I can reduce the amount of oil to the rocker assambly and mayby get an increase in oil pressure
The whole thing should be ready in two to four weeks, the hardest thing was to drill through the rocker shaft and whit that problem out of the way is should be downhill the rest of the way.
Regards
/Stefan
When I rebuilt my engine last winter I was quite suprised about the non-ideal construction of the whole rocker assambly. The idea of having cast aluminum rockers rubbig against the Steel shaft is as many of you probably already know no good at all. Probably very cheep to manufacture but that is its only avantage. The problem became even more of a problem when the suplie of original Rover rocker shaft is drying up and the shafts and rockers i got hold of became noisy after less then 500 km. Anyway, when some thorough googeling couldn't help me i dessided to make my own rocker shafts and mount some bronze bushing in the original rocker arms.
The Shaft is 20 mm H7 polished steel shaft, cant remember what type of steel right know but is hard enough (170 HB i think)
The bearings is FB-092-20 bronze bushing, which sould last longer then the engine, one of the avantages whit bronze bushing is that they dont need much lubrication which means I can reduce the amount of oil to the rocker assambly and mayby get an increase in oil pressure
The whole thing should be ready in two to four weeks, the hardest thing was to drill through the rocker shaft and whit that problem out of the way is should be downhill the rest of the way.
Regards
/Stefan