Help with 1JZ Harmonic Balancer bolt removal

[andrew_mx83]

all good til the bolts bend or break!

i did that several times and gave up, was running out of spare bolts and patience lol

[JZA70 R]

you have to make sure the flat bar is flush up against the crank so it has no leverage on the end of the bolt to bend or break it...

[essaysixtythree]

My bolt head is rounded Will I do any damage if I belt an undersized socket onto it then weld it to the bolt head? ie. will heat on rubber crank seals wreck them. I am confident I can find enough force to crack the bolt if I can get the socket to stay on. I have another bolt to go on so im not fussed if this one gets wrecked. Engine is out of car and sump is off. I am using a hammer handle to jam the crank.

[Casey-G]

My bolt head is rounded Will I do any damage if I belt an undersized socket onto it then weld it to the bolt head? ie. will heat on rubber crank seals wreck them. I am confident I can find enough force to crack the bolt if I can get the socket to stay on. I have another bolt to go on so im not fussed if this one gets wrecked. Engine is out of car and sump is off. I am using a hammer handle to jam the crank.

Weld a nut that has a larger inner diameter that the O-D of the rounded nut to it.
works a treat, it'll be a fairly big nut too i imagine.


Just disconnect your battery ect.. weld it hot and quick and it shouldn't heat the crank up much at all.

[andrew_mx83]

its a bolt not a nut.

i would replace the seals after welding there, in fact i personally would not weld it at all.

.

[Casey-G]

i made one typo i meant to weld a nut to the bolt on the crank. You shouldn't worry about the mainseal if you weld it quick on high amps.

[essaysixtythree]

ew bit late now. I have welded it on there. In the process of putting it back in the car. Im putting it back in the car so that the mounts hold it still while I get some leverage on it. If it spews oil out of the front seal when I start it then I will weep.

[Casey-G]

If you welded it quick on high amps you have nothing to worry about, even if it did warm up a little i doubt it would get past 80 degrees C.

How much was a new bolt worth essaysixtythree?

[andrew_mx83]

If it spews oil out of the front seal when I start it then I will weep.

if the oil just weeps out will you spew?


sorry had to be said

[Casey-G]

if the oil just weeps out will you spew?


sorry had to be said

hahahaha your right i was thinking it.

[essaysixtythree]

if the oil just weeps out will you spew?


sorry had to be said

Most likely yes, I will spew. I was thinking that the seals should be able to take a fair bit of heat. Combustion chambers reach around 400 C I think and a fair bit of that would transfer to the block and crank. But a welding arc is around 3000C minimum I think so maybe I will be weeping more than spewing.

Anyway I got it off. Bit of extra pipe and it put up no resistance.

[essaysixtythree]

Casey I had a spare block with bolt already removed. So it was free.

[beatle]

knocked this up last weekend




pretty much the same as requiem's only 40x40x5 angle

[ReQuieM]

Engines looking good beatle. Wish I had more time to finish mine.