..The reason for the work on the 3BRG was to use it as an initial test bed / development platform for the SC conversion to follow..
The first engine build is for the 5 BRG engine that came with my B & follows my (First Track day)
Checking the condition of engine whilst still in car.
No 4 big end / bearings are toast! Crank looks scored.
Decision made to remove engine and rebuild it.
For this rebuild I plan to do most of the work myself but have the block rebored to +60, crank reground and along with new pistons and con rods have those all machined and balanced professionally..
..The target was to have the job complete for the 2008 MGOT Silverstone Track Day. I booked a place early as they usually all go within a week of going on-line.
So lots to do in my limited spare time hence working into the night here.
Whilst lifting the engine out I support the gearbox with some strong nylon rope from my windsurfing kit.
I removed no3 & 4 pistons and conrods prior to lifting the block out of the car. Note how no4 big end oil squirting hole is blocked. This may have increased friction & heat in no4. Bore.
Comparing no3 and 4 shell bearings clearly indicates why it sounded more like a machine gun than an MGB once this had occurred.
On subsequent engine work I use a 1/2 inch pneumatic impact driver picked up at one of the car shows.
The chain and tensioner are fairly new as these had been replaced recently along with the cam which was up graded to a Piper 270.
I plan to incorporate a number of performance upgrades into this rebuild including a further Cam change to Piper 285 this time which should work well with the 2 inch carbs and increased capacity to 1860 CC.
I took the stripped block to a local garage who arranged for the machining work to be done.
So whilst the parts were away and new pistons, 285 Cam etc.etc. were on order I modified the oil sump with some vertical and a horizontal baffles, The gap in the middle is to clear the oil pickup strainer.
I fitted 5mm alloy threaded inserts to the vertical baffles and attached the alloy baffle using Nylon cheese head bolts.
It is now Jan 2008. I will get this head skimmed and unleaded exhaust valves fitted but here I am using a flexible drive and a range of tools to clean up the casting blips etc. to improve the gas flow.
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It will be very tight to get the car ready for MGOT Silverstone this Month now but I give it a go!
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