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Twin Carb Hell (4 replies)

floormanager
4 years ago
floormanager 4 years ago

Hi all, new here, recently joined, having finally achieved my ambition of owning a Mk2 1968 Mini Cooper S. I bought the car 6 weeks ago and am now carrying

http://www.minicooper.org/wp-content/uploads/photo12233.jpg
floormanager
4 years ago
floormanager 4 years ago

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22g68
4 years ago
22g68 4 years ago

You have the correct airbox....the MK3 had a slimmer version...that is probably the one that was on your car.(Not correct for a MK2)
I understand your concern...trust me...it is difficult to get in to the area when the carbs are bolted onto the head.
You should be able to put the box in without the lid....tight fit.......releasing the engine dog-bone will help you tilt the whole engine slightly..may help...the remote extension on the gearbox makes it difficult to do this .Could unbolt that too.
Another tip...remove the two carbs adapters that have the threaded rod for the wing nuts...again...will be tricky getting at these after the box is in place.

Some owners cut a few inches off the air intake pipe to make this job easier. ...you will see many of these for sale.
The MK3 had a better setup...just took Leyland/BMC all that time to figure it out!
Good luck.

As I said...it is a tight fit...but it is possible.

rsk289
4 years ago
rsk289 4 years ago

Ah yes, just remembered why my HS2s are preserved on the shelf and there's a single HIF under the bonnet...
...not to mention the performance and economy issues...

22g68
4 years ago
22g68 4 years ago

~~Paul.
Think I may have solved your problem
I looked at my MK3 setup....the threaded bolts on the elbows for the airbox are about 5mm longer than the MK1/2 setup.
Seeing as you had a MK3 box on there...it is likely the elbows are MK3 with the longer threaded bolts. This will make it very difficult to slip the MK1/2 airbox in
under the bodywork. Changing the elbows should solve the problem...it will still be a tight fit....but it will work.
Way back...when you ordered a MK3 airbox..it came with the elbows....It also has shorter wing nuts!!!
Hope this helps.

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