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Regarding the the relief grind - would the main tangible benefit for the homeowner be the cleaner cut? Everything else I've known about the relief grind is that it reduces wear and has greater efficiency for the petrol motor as the cylinder contact area is absolutely minimised. Less wear, less fuel, less stress, less dollars?
G'day Mystyler, Troy and all
No, relief grinds will not produce 'cleaner cuts'.

But - theoretically - should reduce wear because of efficiency gains.

There is a tendency for inexperienced folks to 'over-set' reels - meaning that
the reel to bedknife contact is too tight.

Relief grinds - by definition - reduce contact area and ... friction.

I have seen over-sets where the reel has overheated to the extent that
motors start to labour [without any grass cutting].

I once witnessed this on a Ransomes 5/7 hydraulic.

[Linked Image]

An apprentice had over-set the reels and the machine was
in distress when the reels were raised. Fine when cutting
grass [because grass was cooling the reels].

Cheers
--------------------
Jack

p.s. I think that apprentice might have been me ... blush

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