Crankshaft pulley stuck

[26RBR]

Hi all, got a countax C600h that I swapped it's old honda engine for a new Kawasaki engine. Went smooth till the honda decided it didn't want to give up it's crankshaft pulley. I've blowtorched it, coated it in penetrating oil a ton, and used a spanner and a hammer to get leverage on it to try remove it for ages, it won't come off at all.

Anyone else had to do this job and found a way to get it off?

[BrokenSkunk]

https://www.machinemart.co.uk/p/clarke-4-piece-gea...

[netherfield]

Do you mean can't undo the nut or can't get the pulley from the shaft.

[B'stard Child]

26RBR said:

Hi all, got a countax C600h that I swapped it's old honda engine for a new Kawasaki engine. Went smooth till the honda decided it didn't want to give up it's crankshaft pulley. I've blowtorched it, coated it in penetrating oil a ton, and used a spanner and a hammer to get leverage on it to try remove it for ages, it won't come off at all.

Anyone else had to do this job and found a way to get it off?

Is the Honda engine scrap?? - if so drill the crankshaft to within a few mm of the pulley ID

If it's not and you want to save both pulley and engine the heat the pulley and apply compressed air to the crankshaft to try and get some thermal separation/clearance

[shtu]

The pullers above are a solution, depending on the engine there may be a specific tool to remove it.

Usually with such things I get a heap of tension on them, then strike the part with a hammer to shock it free.

[GliderRider]

shtu said:

The pullers above are a solution, depending on the engine there may be a specific tool to remove it.

Usually with such things I get a heap of tension on them, then strike the part with a hammer to shock it free.

This, but with the addition of the application of heat. Boiling water sometimes works even better than a blow torch as liquid transfers heat to the component more rapidly than a flame. It worked for me when removing an Austin Metro flywheel to change the Verto clutch, and went with a heck of a bang when it finally came off.