Ausmini
It is currently Sat Apr 27, 2024 3:22 am

All times are UTC + 10 hours




Post new topic Reply to topic  [ 51 posts ]  Go to page 1, 2, 3, 4  Next
Author Message
 Post subject: Carb rebuild
PostPosted: Tue Feb 10, 2015 10:26 am 
Offline
848cc
848cc

Joined: Fri Oct 10, 2014 1:54 pm
Posts: 16
Location: Dalby, Qld
I've scored a set to twin carbs that I'm about to rebuild and will be following 'Micks How to guide'.

I have a question. The end of the rods to the linkages have been worn. Do these rods need to be replaced or is it a case that it wouldn't affect the operation of SU's? ImageImageImageImage


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Tue Feb 10, 2015 11:22 am 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39643
Location: near Baulkham Hills, NSW
I'd build them up with bronze and re-machine them. Or buy a new one, shouldn't be that dear.
Replace the 2 hollow nuts, they will be worn inside as well.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Wed Feb 11, 2015 7:59 am 
Offline
1360cc
1360cc
User avatar

Joined: Sat May 08, 2004 9:01 pm
Posts: 6843
Location: Cairns, Nrth QLD
http://www.minispares.com/product/Class ... 0to%20shop

http://www.minispares.com/product/Class ... 0to%20shop

_________________
Image
http://www.youtube.com/user/Hanras


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Wed Feb 11, 2015 4:16 pm 
Offline
848cc
848cc
User avatar

Joined: Thu Jan 01, 2009 1:16 pm
Posts: 41
Location: Ferny Hills, Brisbane
Why stop there
http://www.minispares.com/product/Class ... .aspx|Back to shop
Go the whole hog and replace everything.
Have the bodies glass bead blasted. They polish up nicely.

_________________
------------1967 Mini Cooper S--------------
The quality will be long remembered well and truely after the price is forgotten.


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Wed Feb 11, 2015 4:50 pm 
Offline
1275cc
1275cc
User avatar

Joined: Sun Apr 29, 2012 1:19 pm
Posts: 4350
Location: Wollongong, NSW
zep wrote:
Why stop there
http://www.minispares.com/product/Class ... .aspx|Back to shop
Go the whole hog and replace everything.
Have the bodies glass bead blasted. They polish up nicely.

That sounds like his intention, if he is following the how-to guide that Mick wrote.

The carbs in Mick's guide did come up very nicely afterwards, I'm still deciding whether to put them on the car or put them in a display cabinet inside :lol:

_________________
Image


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Wed Feb 11, 2015 4:59 pm 
Offline
SooperDooperMiniCooper ExpertEngineering
User avatar

Joined: Fri Apr 29, 2005 9:46 am
Posts: 18854
Location: Under the bonnet son!
I reckon the new bits look better after a few years on the road from new. Just like it would have been owning a car from new.

Same with all the zinc plating, the bolts dull off after a few years and look more natural.

That throttle linkage is a little different to what I am use to, anyone know why?

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Wed Feb 11, 2015 6:06 pm 
Offline
Causing or creating vexation

Joined: Wed Jul 21, 2004 10:32 pm
Posts: 19116
Mick wrote:
That throttle linkage is a little different to what I am use to, anyone know why?

I think they were the later replacement parts, I bought a new pair like that from Mini Kingdom in the early 80s. (and never used them!)


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Wed Feb 11, 2015 6:10 pm 
Offline
SooperDooperMiniCooper ExpertEngineering
User avatar

Joined: Fri Apr 29, 2005 9:46 am
Posts: 18854
Location: Under the bonnet son!
I didn't like the replacement linkages as they are quite different to the originals. So I transferred over the attachments onto the new shaft.

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Mon Mar 23, 2015 9:55 pm 
Offline
848cc
848cc

Joined: Fri Oct 10, 2014 1:54 pm
Posts: 16
Location: Dalby, Qld
Thanks guys. I ended up replacing the linkages and followed Micks how to guide to drill out the spindles and install bushes (along with everything else in the kit). She's all back together now and ready to be connected. Image


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Tue Mar 24, 2015 8:45 am 
Offline
SooperDooperMiniCooper ExpertEngineering
User avatar

Joined: Fri Apr 29, 2005 9:46 am
Posts: 18854
Location: Under the bonnet son!
Good stuff!

Any trouble with drilling the spindles?

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Tue Mar 24, 2015 9:21 am 
Offline
848cc
848cc

Joined: Fri Oct 10, 2014 1:54 pm
Posts: 16
Location: Dalby, Qld
Hi Mick, I went and bought brand new drill bits because I was worried about the bits taking chunks out of the metal. I then increased the size of the hole at 1/64 increments as you recommended. I took the risk of hand drilling and it all seems to have work well. There's no movement in the spindles now and there is smooth movement when they are rotated. I think if I had to do it again though I would go and find with someone with a drill and vice as you recommended. I could see how easily things could go wrong with angles and chunks taken out. Thank you very much for your instructions.


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Tue Mar 24, 2015 10:03 am 
Offline
SooperDooperMiniCooper ExpertEngineering
User avatar

Joined: Fri Apr 29, 2005 9:46 am
Posts: 18854
Location: Under the bonnet son!
Yes it takes a smooth and careful hand. A safer bet to drill by hand with the easy to replace single 1.25s then a matched pair I will conceed...

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Sat Jan 23, 2016 4:45 pm 
Offline
848cc
848cc
User avatar

Joined: Mon Nov 02, 2015 12:05 pm
Posts: 425
Location: Sunshine Coast, QLD
Just finished rebuilding my Twin HS2 Carbs
Drilled out the body to fit bushes
Wasn't happy with the little bushes supplied
So i fitted 2 into the long side and actually used an american Linkert Carb throttle bush in the other side
I used a 1/4 " drill to align the body for drilling then stepped the sizes up to 5/16"
Image
Image

_________________
1970 MK2 Cooper S


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Sun Jan 24, 2016 5:54 pm 
Offline
848cc
848cc
User avatar

Joined: Mon Nov 02, 2015 12:05 pm
Posts: 425
Location: Sunshine Coast, QLD
Well mine are all done and fitted back to the car
Just need a final tune
Anyone around the sunshine coast got a carb balancer i can borrow
It runs a lot better than it did

Image

_________________
1970 MK2 Cooper S


Top
 Profile  
 
 Post subject: Re: Carb rebuild
PostPosted: Sun Jan 24, 2016 7:55 pm 
Offline
998cc
998cc
User avatar

Joined: Tue Apr 11, 2006 8:15 am
Posts: 722
Location: Brisbane
GundyGuy wrote:
Just finished rebuilding my Twin HS2 Carbs
Drilled out the body to fit bushes
Wasn't happy with the little bushes supplied
So i fitted 2 into the long side and actually used an american Linkert Carb throttle bush in the other side
I used a 1/4 " drill to align the body for drilling then stepped the sizes up to 5/16"
Image
Image


Pro set up, Nice work :wink:

_________________
Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 51 posts ]  Go to page 1, 2, 3, 4  Next

All times are UTC + 10 hours


Who is online

Users browsing this forum: Bing [Bot] and 61 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.