Replacement Rover V8 rockers
Discussion
My car currently has its engine out and I'm debating whether or not to replace the aftermarket rockers we had to put in last time with a better quality set.
It's a road engine in a more or less standard Chimaera 500 (fast road cam and a few bits, but nothing dramatic) so I don't think it's worth converting to roller rockers or anything like that. What would people recommend as a good quality OEM-replacement? I presume the rocker ratio and dimensions are the same on all the Rover-based V8s?
It's a road engine in a more or less standard Chimaera 500 (fast road cam and a few bits, but nothing dramatic) so I don't think it's worth converting to roller rockers or anything like that. What would people recommend as a good quality OEM-replacement? I presume the rocker ratio and dimensions are the same on all the Rover-based V8s?
phazed 11.83 said:
I would look out for a set of good used OEM rockers.
That's not a bad idea. I take it defects would be fairly obvious - as long as there are no cracks, pads aren't loose they'd be good to go? TVR (Chim 500) same as the standard Land Rover ones?I take it eBay would be my best bet for that?
griffdude said:
That's £11.99Or £6.74 from Rimmer Bros.
Steve
Steve_D said:
griffdude said:
That's £11.99Or £6.74 from Rimmer Bros.
Steve
Is it safe to assume they come from the same place? The ones I've got on there now are quite nasty, frankly. I can't remember where they came from, but it took several goes to find a set that actually had a consistent rocker ratio - if you clamped one end down you didn't need a feeler gauge, you could see the variation in the first set we got. We were warned by the supplier that it might take a couple of goes!
Chris71 said:
Steve_D said:
griffdude said:
That's £11.99Or £6.74 from Rimmer Bros.
Steve
Is it safe to assume they come from the same place? The ones I've got on there now are quite nasty, frankly. I can't remember where they came from, but it took several goes to find a set that actually had a consistent rocker ratio - if you clamped one end down you didn't need a feeler gauge, you could see the variation in the first set we got. We were warned by the supplier that it might take a couple of goes!
With the right amount of measuring kit you could measure the distance from shaft centreline to the pushrod socket but how do you measure from shaft to the valve pad where that is a curved surface.
Secondly how much would the ratio need to be wrong and make a difference when you have no control of how high the valve stems are?
Steve
Steve_D said:
Chris71 said:
Steve_D said:
griffdude said:
That's £11.99Or £6.74 from Rimmer Bros.
Steve
Is it safe to assume they come from the same place? The ones I've got on there now are quite nasty, frankly. I can't remember where they came from, but it took several goes to find a set that actually had a consistent rocker ratio - if you clamped one end down you didn't need a feeler gauge, you could see the variation in the first set we got. We were warned by the supplier that it might take a couple of goes!
With the right amount of measuring kit you could measure the distance from shaft centreline to the pushrod socket but how do you measure from shaft to the valve pad where that is a curved surface.
Secondly how much would the ratio need to be wrong and make a difference when you have no control of how high the valve stems are?
Steve
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