Re-chromed rotor housings
01-27-11, 07:09 AM
#26
Senior Member
Thread Starter
iTrader: (1)
Join Date: Jan 2003
Location: Edmonton, Alberta, Canada
Posts: 640
Likes: 0
Received 0 Likes
on
0 Posts
I've got a pair here with the mushroom PP that we will try. These ones we will have to repair the small cracks at the plug holes. I'll have them welded then I will leave it up to the owner to detail them before re-chrome.
01-27-11, 01:45 PM
#27
No we don't have any chromed housings available at the moment. At this point we are not repairing the damage to housings. That will be worked on later once this is moving along. Basically the housings we can do now will have no damage to the steel insert. They can be scratched, worn etc. but any damage to the steel insert however mild would translate into the chrome. If the housing is flaked but recently removed from service it might be salvageable, it depends if the steel where the chrome is missing is pitted or not.
Whats the thickness of the new chrome coating applied out of curiosity?
Do you have pictures of the housings that Dan has used in the past 3 years? That is before and after pictures. Also have those housing been done using the old or new fixtures? Does that change anything in how good it adheres to the housings or is it more of a setup issue?
Lastly is there a reason why this chrome coating isn't as shiny as the stock one? Ups and downs of the that if any?
01-28-11, 01:14 AM
#28
Senior Member
Thread Starter
iTrader: (1)
Join Date: Jan 2003
Location: Edmonton, Alberta, Canada
Posts: 640
Likes: 0
Received 0 Likes
on
0 Posts
If the chrome is flaked off and there is no pitting on the insert then they will be fine.
We apply it back to factory thickness.
The housings are still in service in both engines Pineapple built so no after pics yet.
It's more of a set-up issue as a massive time saver.
Actually new housings look almost exactly like these. I'll take some pics of a new housing tomorrow in similar light and post for you to see.
We apply it back to factory thickness.
The housings are still in service in both engines Pineapple built so no after pics yet.
It's more of a set-up issue as a massive time saver.
Actually new housings look almost exactly like these. I'll take some pics of a new housing tomorrow in similar light and post for you to see.
01-28-11, 01:39 AM
#29
Rotary tuner
Join Date: Feb 2004
Location: In Sweden
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
I have a set that was used less then 20 hour with chrome flaking on sparkplugg area becuse cooling problem.
No cracks on this pair.
01-28-11, 04:35 PM
#30
Banned. I got OWNED!!!
Join Date: Aug 2009
Location: Chicago,IL
Posts: 297
Likes: 0
Received 0 Likes
on
0 Posts
If the chrome is flaked off and there is no pitting on the insert then they will be fine.
We apply it back to factory thickness.
The housings are still in service in both engines Pineapple built so no after pics yet.
It's more of a set-up issue as a massive time saver.
Actually new housings look almost exactly like these. I'll take some pics of a new housing tomorrow in similar light and post for you to see.
We apply it back to factory thickness.
The housings are still in service in both engines Pineapple built so no after pics yet.
It's more of a set-up issue as a massive time saver.
Actually new housings look almost exactly like these. I'll take some pics of a new housing tomorrow in similar light and post for you to see.
Here,no need too.
Housing Not Mine
01-29-11, 09:16 AM
#35
BDC Motorsports
01-29-11, 09:36 AM
#36
talking head
but am dubious on its advantages in modern housings
and it requires ***** ( or deep pockets ) to take to a very expensive MFR housing !
01-29-11, 07:01 PM
#38
FAST BATTY
Join Date: Aug 2008
Location: New Zealand
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
Looks very interesting,
I would be interested in stocking, selling these in New Zealand once proven & tested etc etc. As freight costs to Canada for individuals from Nz would be extreme as well as customs issues etc.
A range of 10A, 12A & 13B (all models would be great).
Currently circuit race 500RwHp FD Rx7 Nationally in NZ. So we are out their doing it for the rotary.
Cheers.
I would be interested in stocking, selling these in New Zealand once proven & tested etc etc. As freight costs to Canada for individuals from Nz would be extreme as well as customs issues etc.
A range of 10A, 12A & 13B (all models would be great).
Currently circuit race 500RwHp FD Rx7 Nationally in NZ. So we are out their doing it for the rotary.
Cheers.
01-31-11, 10:30 AM
#39
Senior Member
Thread Starter
iTrader: (1)
Join Date: Jan 2003
Location: Edmonton, Alberta, Canada
Posts: 640
Likes: 0
Received 0 Likes
on
0 Posts
Good work but rechromeing the rotor houseing sounds like trouble to me.
I belive just buy a new set or good second hand ones.
I dont think there will be a market for this,there might be but i think it is a waste off time.
These rotorhouseing all ready have wear in colant passages and so on stress off heat again when rechromeing and so on etc etc etc.
Im not saying its a dumb idea but think about it first,your the apex seal man for ceramics
and ya did a good job makeing ceramics and they prove them selfs many times over better than any other seal money can buy.
And i think the only road to go is new rotor houseing or good second hand ones.
Rechromeing just dont do it for me,i could buy import motors and use the houseing for the price your selling them for nealy.
Ya just gotta be in the know how
good luck glassman wish ya well hope ya prove me wrong
I belive just buy a new set or good second hand ones.
I dont think there will be a market for this,there might be but i think it is a waste off time.
These rotorhouseing all ready have wear in colant passages and so on stress off heat again when rechromeing and so on etc etc etc.
Im not saying its a dumb idea but think about it first,your the apex seal man for ceramics
and ya did a good job makeing ceramics and they prove them selfs many times over better than any other seal money can buy.And i think the only road to go is new rotor houseing or good second hand ones.
Rechromeing just dont do it for me,i could buy import motors and use the houseing for the price your selling them for nealy.
Ya just gotta be in the know how
good luck glassman wish ya well hope ya prove me wrong
I think it's perfect to re-chrome them, all the stresses and movement have already happened on a used housing.
01-31-11, 09:00 PM
#41
talking head
i suppose it might be a good idea to still save 12a and 13b housings with pitting in the steel surface along the edges
( common on 12a and some 13b that have been run past the chrome or had water lay inside the housing for a while )
in the hope that even if they don't scrub up along the edges with a recoat,,
they remain candidates to cut down 5mm each edge to be able for use as composite 12a/10a engines
( with later 13b plates )
i see a whole new generation of 10a and 12a plate combos
and things like oversize seals for worn rotor slots ( such as goopy demonstrate )
may well save the 12a and provide a 10a single dizzy option
sven- what are you thoughts?
have you considered 12a over width seals and cut down 13b housings as a market?
( common on 12a and some 13b that have been run past the chrome or had water lay inside the housing for a while )
in the hope that even if they don't scrub up along the edges with a recoat,,
they remain candidates to cut down 5mm each edge to be able for use as composite 12a/10a engines
( with later 13b plates )
i see a whole new generation of 10a and 12a plate combos
and things like oversize seals for worn rotor slots ( such as goopy demonstrate )
may well save the 12a and provide a 10a single dizzy option
sven- what are you thoughts?
have you considered 12a over width seals and cut down 13b housings as a market?
01-31-11, 09:23 PM
#42
Senior Member
Thread Starter
iTrader: (1)
Join Date: Jan 2003
Location: Edmonton, Alberta, Canada
Posts: 640
Likes: 0
Received 0 Likes
on
0 Posts
Awesome point! I could see many 13B housings fit that bill. Removing 5mm per side would salvage almost any housing with edge wear and peeling. I've heard of places doing that with new housings so why not used. 13B's become 12A's and 12A's become 10A's.....I like it. Single dizzy is a nice bonus too.
If people will buy oversized seals of course we would make them. It seems now that already happens in 13B's simply by going up to 3mm. Nice thing is that with ceramics the grooves wear a LOT less.
If people will buy oversized seals of course we would make them. It seems now that already happens in 13B's simply by going up to 3mm. Nice thing is that with ceramics the grooves wear a LOT less.
01-31-11, 09:42 PM
#43
they remain candidates to cut down 5mm each edge to be able for use as composite 12a/10a engines
( with later 13b plates )
i see a whole new generation of 10a and 12a plate combos
and things like oversize seals for worn rotor slots ( such as goopy demonstrate )
may well save the 12a and provide a 10a single dizzy option
sven- what are you thoughts?
have you considered 12a over width seals and cut down 13b housings as a market?
( with later 13b plates )
i see a whole new generation of 10a and 12a plate combos
and things like oversize seals for worn rotor slots ( such as goopy demonstrate )
may well save the 12a and provide a 10a single dizzy option
sven- what are you thoughts?
have you considered 12a over width seals and cut down 13b housings as a market?
01-31-11, 11:07 PM
#44
talking head
sven - dont know how financial you are, but maybe consider offering a rebate or "store credit" to refund shipping cost and for core housings that make it to you and dont make the final grade as a1 13b candidates
that way you could build your own stock of core rebuilders for the 12a/10a recon process
and thus fully recover all the costs and margins associated with the conversion down a size
this eliminate hassles with having to ship back rejected ( for 13b ) cores
and save many 13b housings that are maybes ,, some will make it,, others will make fine 12a examples and thus take strain of existing new 13b stocks
as a hypothetical example
, if i ship you 6 housings and 3 dont make the grade for 13b A1 repair
then you could give credit for the rejected core and postage
and so own the said rejected cores to be put through process to retail again as reman 12a or 10a
that way it would be a win win situation in view of the difficulty and costs involved in accurately grading said cores and postage's backs and forths for duds
i know that is clear as mud and hope the point/idea comes across
ps
the 5mm off each side process is also going to save a lot of housings with corrosion in the coolant gallery edges
that way you could build your own stock of core rebuilders for the 12a/10a recon process
and thus fully recover all the costs and margins associated with the conversion down a size
this eliminate hassles with having to ship back rejected ( for 13b ) cores
and save many 13b housings that are maybes ,, some will make it,, others will make fine 12a examples and thus take strain of existing new 13b stocks
as a hypothetical example
, if i ship you 6 housings and 3 dont make the grade for 13b A1 repair
then you could give credit for the rejected core and postage
and so own the said rejected cores to be put through process to retail again as reman 12a or 10a
that way it would be a win win situation in view of the difficulty and costs involved in accurately grading said cores and postage's backs and forths for duds
i know that is clear as mud and hope the point/idea comes across
ps
the 5mm off each side process is also going to save a lot of housings with corrosion in the coolant gallery edges
Last edited by bumpstart; 01-31-11 at 11:14 PM. Reason: ps
02-04-11, 03:10 PM
#46
This video is pretty neat, it shows casting and machining of rotary engine parts. (and assembly)
The steel liner in the rotary housing is actually cast into the housing not pressed in.(no details about the manufacture of the liners though)
http://www.mazda.com/mazdaspirit/rotary/howto/
I'm curious as to the process that your using to re-chrom the housings, but I presume it's top secret.
Keep up the good work/engineering!
The steel liner in the rotary housing is actually cast into the housing not pressed in.(no details about the manufacture of the liners though)
http://www.mazda.com/mazdaspirit/rotary/howto/
I'm curious as to the process that your using to re-chrom the housings, but I presume it's top secret.
Keep up the good work/engineering!
02-08-11, 06:30 PM
#47
Senior Member
Thread Starter
iTrader: (1)
Join Date: Jan 2003
Location: Edmonton, Alberta, Canada
Posts: 640
Likes: 0
Received 0 Likes
on
0 Posts
sven - dont know how financial you are, but maybe consider offering a rebate or "store credit" to refund shipping cost and for core housings that make it to you and dont make the final grade as a1 13b candidates
that way you could build your own stock of core rebuilders for the 12a/10a recon process
and thus fully recover all the costs and margins associated with the conversion down a size
this eliminate hassles with having to ship back rejected ( for 13b ) cores
and save many 13b housings that are maybes ,, some will make it,, others will make fine 12a examples and thus take strain of existing new 13b stocks
as a hypothetical example
, if i ship you 6 housings and 3 dont make the grade for 13b A1 repair
then you could give credit for the rejected core and postage
and so own the said rejected cores to be put through process to retail again as reman 12a or 10a
that way it would be a win win situation in view of the difficulty and costs involved in accurately grading said cores and postage's backs and forths for duds
i know that is clear as mud and hope the point/idea comes across
ps
the 5mm off each side process is also going to save a lot of housings with corrosion in the coolant gallery edges
that way you could build your own stock of core rebuilders for the 12a/10a recon process
and thus fully recover all the costs and margins associated with the conversion down a size
this eliminate hassles with having to ship back rejected ( for 13b ) cores
and save many 13b housings that are maybes ,, some will make it,, others will make fine 12a examples and thus take strain of existing new 13b stocks
as a hypothetical example
, if i ship you 6 housings and 3 dont make the grade for 13b A1 repair
then you could give credit for the rejected core and postage
and so own the said rejected cores to be put through process to retail again as reman 12a or 10a
that way it would be a win win situation in view of the difficulty and costs involved in accurately grading said cores and postage's backs and forths for duds
i know that is clear as mud and hope the point/idea comes across
ps
the 5mm off each side process is also going to save a lot of housings with corrosion in the coolant gallery edges
Some good suggestions there and I think we might be able to implement them once we are up and running but for now it's simply not feasable for me.
I think what persons could do is send me pics of housings first and I can give my impression on getting them done. This should save some hassles on shipping certain housings that are not worth it.
Looking forward to the progress.