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Crankshaft pulley bolt- Spitfire 1500


Phil Siddall

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The jerky transmission turned out to be over-advanced ignition after I fitted the electronic ignition, easily sorted.

Still got the rattly zizz noise from the front of the engine, which I suspect is a worn timing chain. Now got all the necessary bits, but can't get the bolt undone on the crank pulley.

Got a 46 mm 3/4" drive socket, and a dirty great torque wrench, but 220 lb/ft will not shift it.  Had the car in top, with the brakes on full; they were just beginning to slip, in spite of my pal using as much force as he could on the pedal.  Also tried resting the tommy bar on the chassis and giving the starter a nudge; still no go. The  bolt looks unlike those in the Haynes manual, as rather than being a plain hexagon it has a slot looking a bit like it is for a starting handle. I presume it is not LH thread....

Still got problems with a sticking float in the front carb too, in spite of fitting new 'stay up' floats and a needle/jet assembly. New rubber fuel pipes too.

Any ideas what to try next? Not many Triumph specialists in Tobermory!

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applying that torqure thro the drive train can wreck things you are seriously overloading the clutch and drive line 

you need to firmly jam the ring gear so no load is past on to the drive line 

i have always found a battery impact wrench ( big one)  wil whiz these  difficult nuts off easily 

with the fueling  what pump is fitted ???

Pete

 

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12 minutes ago, Pete Lewis said:

applying that torqure thro the drive train can wreck things you are seriously overloading the clutch and drive line 

you need to firmly jam the ring gear so no load is past on to the drive line 

i have always found a battery impact wrench ( big one)  wil whiz these  difficult nuts off easily 

with the fueling  what pump is fitted ???

Pete

 

+1 for battery impact wrench, gets these undone in no time.

Nigel

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1. Unbolt the starter motor from the gearbox and place it somewhere so it's supported, not just hanging from the electrical cable.

2. You should then be able to get a pair of mole grips clamped onto the flywheel through the starter motor hole.

3. Turn the nut and while you may get a little free movement the mole grip should soon wedge against the bell housing and the nut start to undo.

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