Valve Springs
Posted: Fri Feb 13, 2009 9:26 am
I recently put my RRC 3.9 back on the road after replacing the engine and axle with ones I had rebuilt.
Having done some 200 miles one cylinder refused to fire - a compression test showed zero compression and a boroscope showed no damage to the piston crown or bore.
With the rocker covers off it was clear that No 7 inlet valve spring was broken at the base of the spring and not closing the valve.
These were of course brand new valve springs from Britpart.
This is the first valve spring i have ever seen break in some 45 years of messing about with cars and of course Land Rover do not have valve springs at this time - they are on back order (what has happened to our engineering industry that something as simple as a spring is unobtainable)
So be warned the blue box is not necessarily the cheapest option.
Having done some 200 miles one cylinder refused to fire - a compression test showed zero compression and a boroscope showed no damage to the piston crown or bore.
With the rocker covers off it was clear that No 7 inlet valve spring was broken at the base of the spring and not closing the valve.
These were of course brand new valve springs from Britpart.
This is the first valve spring i have ever seen break in some 45 years of messing about with cars and of course Land Rover do not have valve springs at this time - they are on back order (what has happened to our engineering industry that something as simple as a spring is unobtainable)
So be warned the blue box is not necessarily the cheapest option.