A bit more on the motor.....
All the engine orifices were blocked up, this was to stop any media getting into the motor when it was vapour blasted. Every hole had a machined bung made to suit, all made with an O ring groove or a gasket face so no chance of any blasting media entering the motor.
The motor sounded ok when it was running and I knew it would be a massive job to strip all the casings down. I could tell that the engine hadn't been stripped before so, considering the low mileage, it should be near enough as it was when it left Honda all those years ago.
New gaskets underneath the exhaust bungs to be squashed with the makeshift clamps - you can see four bungs and clamps fitted below.
All the shims were either swapped, changed or ground to get the optimum clearance. All back into position, the numbers are just to let me know where they were and the size.
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The sump was removed and pick up strainer was cleaned, this filter just stops any big bits going into the pump with a paper jobbie on the front of the motor doing the proper filtering. The gears all looked good with no marks or chips. On the outside of the motor left and right just above the filter there are the oil cooler flow and returns, these aluminium bungs had O rings to seal and clamping plates made.
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The filter housing always seems to get damage to the fins for some reason, the two outside ones needed building up on this one.
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All cleaned off with just a slight colour difference to say it's been repaired, when it's painted you won't be able to tell.
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Nylon bungs were turned up for the inlets and were clamped with the original carb rubbers as new rubbers were on order.
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Now that all the holes had been blanked off it was ready for it to be vapour blasted. A mate of mine has a machine that was big enough to get the engine through the door with a turntable so the motor can be turned through 360', the motor is 110kg (240lb) so is not easy to handle. The mild steel engine stand was designed for the vapour blaster in mind, when the first pass on the base was done the stand was turned on it's back and it could be blasted through 360' again. Pawel, my friendly Polish blaster, spent 4 hours doing this - FOC thanks to my mate Imran.
The result is a motor that is keyed and ready for paint. The clutch, ignition advance timing gear cap, crankshaft and camshaft end caps and alternator covers were also blasted and will need to be re-polished and fitted with new gaskets.
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All masked off and ready for primer and paint, this is the clutch side. I did remove some of the bungs and caps to see if there was any sign of blasting media behind them, luckily all had held back the pressure of the blaster. Obviously all the masking tape has to do is keep the paint out of the internals so it's a bit slap-dash.
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And the alternator side, showing caps with O rings for the starter, two for the head oil feed pipe, oil filler dipstick (a pain as the thread was a bastard pitch and form so had to grind a bespoke tool to screw cut it on the lathe), oil cooler feed and also nylon caps for the gear shift and sprocket seals.
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Next is engine paint..............
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