need info on crank. how do i take the belt sprocket off.

[noob2nissan-s12]

i have been battleing with the timingbelt sprocket off of the crank for 2 days i need some ideas i tried about everything is off of a ca18et...

[float_6969]

It's not uncommon for them to rust themselves on. If you've got an oxy-acetylene torch, try heating it up. Sometimes that will expand it enough to break it free of the crank. Just don't get too crazy with it and melt the oil pump or get the crank too hot.

You can also try cutting it with a cutoff wheel where the woodruff key is at. Then use a chisel to spread it the rest of the way apart, which should break the last of the metal and loosen it up.

You can also try drilling and tapping 2 or 3 holes in it, and then use a piece of steel on the end of the crank with holes in it to pull the pulley off kind of like a steering wheel puller or a crank pulley puller.

Don't be afraid to try any combination of these as well.

[articzap]

I drilled and tapped two holes then bought a timing gear puller. Worked perfect.

Don't drill to far or you may nick the crank.

[MeanGreenS13]

I drilled and tapped two holes then bought a timing gear puller. Worked perfect.

Don't drill to far or you may nick the crank.

thats what JB weld is for bro!

[mbmbmb23]

I hacksawed mine. I cut across the face of it, with the blade facing the engine..taking a chunk off and getting very close to the crank snout...then I hit it with a cold chisel and cracked it and it fell off. If I were doing it over I would have drilled a few holes in a row starting near the crank snout and going outward...then hit that spot with the chisel.

[MeanGreenS13]

im glad i put a brand new oil pump on my car haha

[sicj]

cut that ***** off!

here's what I ended up doing.

NO gear puller will fit behind the gear.

- I heated up the gear with a welding torch and me and another dude used two 3ft. pry bars. We spent around 20min. heating/slamming the pry bars. Let me just say the lil old CA block looked like it was on the back of a bucking bull. We managed to "walk" the timing gear off far enough to slide the oil pump forward off the dowels for me to pull the crank/oil pump out together.

then I just got out the grinder and chisel and that took 1 min.

save time, engery, and money and cut the bastard off. by far the worst part of my build.

[themadscientist]

I split em with a a chisel and throw the two halves in opposite directions. I do this because they have vexed me and I wish both pieces to always feel the incomplete as the rust away at opposite ends of the drainage ditch in front of the house.

[DALAZ_68]

i think i know which timing wheel u guys are talking about, the one i needed to turn with a hex key to loosen my timing belt right?

dam nso u cut the bastard off aye

[noob2nissan-s12]

thanks for the intput i got it done. the engine block is getting the machining done at salterracing he is also going to build the bottom end.

[themadscientist]

i think i know which timing wheel u guys are talking about, the one i needed to turn with a hex key to loosen my timing belt right?

dam nso u cut the bastard off aye

We are talking about the cog gear down on the crank. They damned-near weld themselves on sometimes.

[noob2nissan-s12]

thats done thats off now the engine is at salterracing now getting the bottom end overhauled.. yea. i got to get some new parts for it i was thinking copper gasket with a complete .0036 ring around to lock up some of the boost in there for the long haul still thinking about it... too many plroblems with that..

[Liquid_Neon]

mine came off with a lot of patiance and two screwdrivers. oh and a lot of wd40 with some pb blaster.

[DALAZ_68]

We are talking about the cog gear down on the crank. They damned-near weld themselves on sometimes.

i see now...comp at work blocks pics

[zero_gripS13]

i drilled it tapped it after spending 3 days on it... bought a new one from nissan and called it a day

[bimeur]

if you are using a new oil pump,cut this part: