side housing lapping table
02-07-2007, 11:21 AM
#1
Senior Member
Thread Starter
Join Date: Feb 2005
Location: Kissimmee FL.
Posts: 1,579
i was gonna put this in the rotary engine section. but hardly anyone posts there. sooooooo...........how much do used/new side housing lapping tables go for? and does anyone have a video of one being used. i want to purchase one for my shop that im planning on opening at the end of this year. but....i have never seen or used one. so i dont even know how to use it yet. what exactly does it do....???
sorry for the dumb questions...
sorry for the dumb questions...
02-07-2007, 01:24 PM
#2
Senior Member
Join Date: Jun 2002
Location: La Plata, Maryland
Posts: 9,725
Originally Posted by sen2two' post='857834' date='Feb 7 2007, 09:21 AM
i was gonna put this in the rotary engine section. but hardly anyone posts there. sooooooo...........how much do used/new side housing lapping tables go for? and does anyone have a video of one being used. i want to purchase one for my shop that im planning on opening at the end of this year. but....i have never seen or used one. so i dont even know how to use it yet. what exactly does it do....???
sorry for the dumb questions...
Well I wouldn't know how much the machine itself is worth. I'm curious why you are interested in one? After looking into have a set of irons lapped for myself. It became obvious that the lapping alone is pointless unless you are able to have the irons nitride coated and heat treaded to boot. Otherwise the irons will wear a lot faster than normal. Why your interest?
02-07-2007, 08:51 PM
#3
Senior Member
Join Date: Apr 2002
Location: Was: Cincinnati,OH.... NOW: Bham, AL
Posts: 632
Originally Posted by Fd3BOOST' post='857845' date='Feb 7 2007, 11:24 AM
Well I wouldn't know how much the machine itself is worth. I'm curious why you are interested in one? After looking into have a set of irons lapped for myself. It became obvious that the lapping alone is pointless unless you are able to have the irons nitride coated and heat treaded to boot. Otherwise the irons will wear a lot faster than normal. Why your interest?
Fd3Boost, Can you point me to where you found that info about shortening the wear on the irons? and how important nitride coating is?? Maybe the thickness of it?
02-08-2007, 11:23 AM
#4
Senior Member
Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by herblenny' post='857917' date='Feb 7 2007, 06:51 PM
Fd3Boost, Can you point me to where you found that info about shortening the wear on the irons? and how important nitride coating is?? Maybe the thickness of it?
mazda puts a thin coating on the irons, .002" ? the irons previous to this, 78 and earlier, are just cast iron, and are usually worn out of spec in the 40-60k range, these can be lapped cause theres no coating to take off. the nitraded housings last roughly 4x as long. and then they moved the water seals into the irons...
so you CAN lap an fd iron, but its not a great idea
02-08-2007, 02:23 PM
#7
Senior Member
Thread Starter
Join Date: Feb 2005
Location: Kissimmee FL.
Posts: 1,579
Originally Posted by j9fd3s' post='858052' date='Feb 8 2007, 01:09 PM
then why do you need a $10,000ish tool?
gotta learn somewhere right???
and its only 1,500....at least i found one for that. and plan on opening a shop in the future. thats why i gotta learn all these things.
02-08-2007, 02:29 PM
#9
Senior Member
Thread Starter
Join Date: Feb 2005
Location: Kissimmee FL.
Posts: 1,579
Originally Posted by jwteknix' post='858059' date='Feb 8 2007, 01:25 PM
ill come down and work for u can i be haed tech?
lol....it wount be for atleast another year and a half or 2 years. thats what im hoping. and im doing it with my brother an I.
02-08-2007, 03:19 PM
#10
Senior Member
Join Date: Oct 2002
Posts: 265
I was told be the a very reliable Source that my plate (don't know if there all the same) are coated 6 thou thick. This was Hardness Tested at BAE systems in the UK (unfortunatly Scrapping the plate in the Prosses but was for intrest)
So i have resurfaced Plates before now upto 4 thou and not more, even though 2 thou is left it would reduce the life of the plate once this had worn out (i was also told the deaper the coating goes the less effective it becomes)
So the Moral of the story is.... If your Poor like me and don't expect to get 100k from the Plate it can be done (but no more than .004) but if you are going for power and a long life buy a new plate. It would seem its a Short term fix.
So i have resurfaced Plates before now upto 4 thou and not more, even though 2 thou is left it would reduce the life of the plate once this had worn out (i was also told the deaper the coating goes the less effective it becomes)
So the Moral of the story is.... If your Poor like me and don't expect to get 100k from the Plate it can be done (but no more than .004) but if you are going for power and a long life buy a new plate. It would seem its a Short term fix.