A Pile of Alloy and Pain for some!
In Two weeks we have collected a bunch of cracked (14units) Nissan Patrol ZD30 Cylinder Heads, Our Clients have all received Brand New replacement Heads. A warning to all mechanics. Don’t get caught out with heads that do not appear to be cracked. Others have been caught out by “pressure testing” at pressures too low to [...]
Shim Adjustable and Hydraulic Buckets/Lash Adjusters
WARNING – Mazda G6
Lack of oil supply to the overhead gear, rockers, cam, and starvation of the main bearing; this is due to the oil relief valve in the timing cover flogging out or elongating the hole in which the oil relief valve sits in. This can be reamed out and an oversize valve can be fitted. Oil [...]
Getting Longevity Out of O.H.C. Engines With Solid Tappets on LPG
Engines such 1FZFE & 3RZFE and others… need a little help. Part of the answer is… a “ditch cut cam.” One of the techniques is to regrind the exhaust cam profile in such a way that it reduces the exhaust temperatures and allows the exhaust valve to grow in length without shutting the tappets clearances [...]