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Crankshaft Sprocket - Having Trouble Removing It

Kaz200

By Kaz200,
in General Maintenance

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Kaz200 Grand Master

Kaz200

Posted
Posted

hey all.. this is in ref to a CA18DET but its only really general info I need.

ok we're at the point of removing the crankshaft sprocket & backing plate to replace a seal.. as seen here tho it's not my engine..

tbelt8.jpg

Using a screwdriver, wd40 etc and trying to lever it off but it's just NOT coming off & Mic's about to pop a vein or something.. rusted on perhaps? I don't know.. Need ideas :)

(yes it's lined up with the notch thingy/tooth in the middle)

[oil seals are sorted]

Any advice/ideas appreciated.

Was hoping to put the head back on today :)

Thanks guys!!

Kaz

Kaz200 Grand Master

Kaz200

Posted
  • Author
Posted

OK still need help here.. tho the oil seals are sorted now.

Used a blow torch but the crankshaft sprocket is still on there, barely moved. Last option atm is to drill it and crack it off unless someone has a better suggestion!

Where are all the wonderful people who normally know more than me?! I am a girl you know and at least I've come up with some ideas!

wrxhoon Grand Master

wrxhoon

Posted
Posted

More heat should do the trick, other than that you may have to destroy it and buy a new one. I usualy get them off with the oxy torch though, just apply heat on the gear only .

SteveL Mentor

SteveL

Posted
Posted

More heat is the easiest solution, but there's a seal for the oil pump behind the sprocket and it would be a very good idea (IMHO mandatory) to replace the seal after applying heat to the area. Also that thin plate you can see behind the sprocket is a guide for the cam belt....try not to damage it and also try not to use the oil pump housing as a levering point.

If heat doesn't work, cutting slots in the sprocket with an angle driver then using a cold chisel to split it is a last resort. Make sure you can get a replacement before destroying it first tho. In a couple of cases I've drilled and tapped holes in the sprocket then used a home-made puller to get it off, but that can only normally be done with the engine out, unless you have access to an air drill.

Good Luck

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