I have done this on other cars, but my H22/H23 can't do this b/c the mains are in the way at the bottom of the cylinder.

Is it possible to pull the pistons and rods down out of the block from the bottom, without having to pull the head?

 

not too hot on the H series... but after taking out the mains/crank, I don't see why you shouldn't be able to... can't think about using those rings again...

But why would you want to do this ? To put them back in you should do a hone job on the block anyway... which would require you pull the head in the end.

 

I need to check the pistons on a B18A, and possibly replace them. If they don't need to be replaced, then I'm gonna just stick them back in the block. A hone will not be necessary.

I know it won't work on the H-motors, I just finished building mine and remember that detail. But I've heard the B-series motors might be able to have the pistons and rods pulled straight out the bottom, once the oil pan, girdle, and mains are removed, the rods are unbolted from the crank, and the crank is rotated out of the way.

I just wanted to confirm this, as I have never actually opened up the bottom end of a B-series motor and don't wanna wait till the day I start working to find out.

 

I thought this was impossible on ANY engine because the main bearing saddles got in the way!?!? What other engine did you do this on?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tjbizzo &raquo;</TD></TR><TR><TD CLASS="quote">I thought this was impossible on ANY engine because the main bearing saddles got in the way!?!? What other engine did you do this on? </TD></TR></TABLE>

IIRC, it was on an old V-somethin motor a bud of mine was tearin apart, and I was his gopher. I knew jack about cars at the time, and I don't remember what motor or what car it came out of.

But yeah, like I said, I knew the main saddles are in the way on H-motors, I was curious about the B-motors as well.

 

you wont be able to remove the pistons from the bottom.

the crank is in the way. and you cant remove the crank without removing the transmission to unbolt the flywheel. and you need to remove the oil pump as well. to much work and time involved. plus you will never be able to put the pistons back in from the bottom without damaging something.

pull the head.....its takes me less then an hour to pop a B18B head off....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">I have done this on other cars, but my H22/H23 can't do this b/c the mains are in the way at the bottom of the cylinder.

Is it possible to pull the pistons and rods down out of the block from the bottom, without having to pull the head?</TD></TR></TABLE>
It can't be done. Not without breaking anything anyway.

 

no, not gonna happen...the mains overlap ...they will not allow the piston to come out, it will hang up on the back of the mains....

 

do it right and take the head off!!!!!