Same here.???????MotionMachine wrote: ↑Fri Jan 07, 2022 9:52 pm "I can use my cylinder boring bar to rough the mains bores, to prep for honing ?"
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Torque plate hone a BBM ?
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Re: Torque plate hone a BBM ?
Re: Kwik way bore mains
Using standard 2.750" mains and boring to 2.950" +/-. Kwik way boring bar diameter is 2.625" net. This leaves about .162" for tool extension and chips.
Why would I ? Sending out for boring mains is $350 and six week wait, +. Honing is $150. and 1-2 weeks. What if ?
Art.
Why would I ? Sending out for boring mains is $350 and six week wait, +. Honing is $150. and 1-2 weeks. What if ?
Art.
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Re: Torque plate hone a BBM ?
Using the bell surface or the timing cover surface to mount your bar is no guarantee of squareness to the mainline, at all. How will you center the bar on the saddle only, scratch test it and bump the bar around until it looks good? Whomever line hones your block will want the bores to be not only in alignment but as close to the same diameter as possible. Line honing a block with 3 steel caps and 2 cast caps presents problems in itself. The best method is to line bore it to within .001"-.0015", then finish it on the line hone if you want a hone finish.
"do it right or do it right away"
http://www.motionmachineinc.com/
https://www.youtube.com/watch?v=ZgIZbveknDs
http://www.motionmachineinc.com/
https://www.youtube.com/watch?v=ZgIZbveknDs
Re: Torque plate hone a BBM ?
I can check perpendicularity with an indicator. Kwik Way centers on the bore.
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Re: Torque plate hone a BBM ?
This seems like one of those instances where it’s best not to ask any questions.
Somewhat handy with a die grinder.
Re: Torque plate hone a BBM ?
There are many many things in life that intuitively seem like a bad idea, that don’t need to be proven to actually be a bad idea.
Like walking off a cliff.
Maybe it’s just my perception of how (in)tolerant the main line is of machining errors, but machining the main bore with a portable boring bar falls into the “bad idea I don’t need to prove is a bad idea” category.
Seems kind of strange the dedicated main line boring equipment goes about the operation in a completely different way, using machines at are much more rigid and robust....... than a portable cylinder boring bar stuck on the end of the block.
Make no mistake, I believe you will not be deterred in your desire to try it.
Which is my main reasoning for not making comments or asking questions.
I think it’s a bad idea........ but who am I to tell someone what they should or shouldn’t do?
Like walking off a cliff.
Maybe it’s just my perception of how (in)tolerant the main line is of machining errors, but machining the main bore with a portable boring bar falls into the “bad idea I don’t need to prove is a bad idea” category.
Seems kind of strange the dedicated main line boring equipment goes about the operation in a completely different way, using machines at are much more rigid and robust....... than a portable cylinder boring bar stuck on the end of the block.
Make no mistake, I believe you will not be deterred in your desire to try it.
Which is my main reasoning for not making comments or asking questions.
I think it’s a bad idea........ but who am I to tell someone what they should or shouldn’t do?
Somewhat handy with a die grinder.