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air intake

Posted: Fri Aug 02, 2024 8:31 am
by stuffedpike20
The air intake on my minor is permanently pointed at the back of the exhaust manifold.
Is there a summer setting for this? Should the carb be sucking in slightly cooler air?

Thanks
John

Re: air intake

Posted: Fri Aug 02, 2024 8:52 am
by Bill_qaz
Don't know what year you have but on my 1098 the intake is rearward in winter and can be rotated forwards in summer when the intake trumpet is infront on the carburettor.
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Re: air intake

Posted: Fri Aug 02, 2024 10:39 am
by myoldjalopy
The earlier 'saucepan' type of filter housing can also be moved in position.

Re: air intake

Posted: Fri Aug 02, 2024 12:30 pm
by ManyMinors
Bill_qaz wrote: Fri Aug 02, 2024 8:52 am Don't know what year you have but on my 1098 the intake is rearward in winter and can be rotated forwards in summer when the intake trumpet is infront on the carburettor.
20240323_125936.jpg
I reckon you can only do that because your air cleaner assembly is broken and the intake pipe is not there as far as I can see?

Re: air intake

Posted: Fri Aug 02, 2024 12:31 pm
by ManyMinors
Posting repeated :-?!

Re: air intake

Posted: Fri Aug 02, 2024 1:15 pm
by StillGotMy1stCar
ManyMinors wrote: Fri Aug 02, 2024 12:30 pm
Bill_qaz wrote: Fri Aug 02, 2024 8:52 am Don't know what year you have but on my 1098 the intake is rearward in winter and can be rotated forwards in summer when the intake trumpet is infront on the carburettor.
20240323_125936.jpg
I reckon you can only do that because your air cleaner assembly is broken and the intake pipe is not there as far as I can see?
It's not obvious but I can see it, beside the float chamber, blocking the view of the servo below.

Regards John

Re: air intake

Posted: Fri Aug 02, 2024 1:55 pm
by Bill_qaz
ManyMinors wrote: Fri Aug 02, 2024 12:30 pm
Bill_qaz wrote: Fri Aug 02, 2024 8:52 am Don't know what year you have but on my 1098 the intake is rearward in winter and can be rotated forwards in summer when the intake trumpet is infront on the carburettor.
20240323_125936.jpg
I reckon you can only do that because your air cleaner assembly is broken and the intake pipe is not there as far as I can see?
It's not broken, the intake trumpet is along side the float chamber,
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Re: air intake

Posted: Fri Aug 02, 2024 3:46 pm
by stuffedpike20
Thanks folks.

I think I am going to have to extend my pipe! :o

Re: air intake

Posted: Fri Aug 02, 2024 6:39 pm
by ManyMinors
StillGotMy1stCar wrote: Fri Aug 02, 2024 1:15 pm
ManyMinors wrote: Fri Aug 02, 2024 12:30 pm
Bill_qaz wrote: Fri Aug 02, 2024 8:52 am Don't know what year you have but on my 1098 the intake is rearward in winter and can be rotated forwards in summer when the intake trumpet is infront on the carburettor.
20240323_125936.jpg
I reckon you can only do that because your air cleaner assembly is broken and the intake pipe is not there as far as I can see?
It's not obvious but I can see it, beside the float chamber, blocking the view of the servo below.

Regards John
You must have better eyesight than me John :) I couldn't see it at all! The metal pipe does frequently break off those later filter housings :wink:

Re: air intake

Posted: Fri Aug 02, 2024 8:30 pm
by philthehill
Just turn the air filter body so that the air intake pipe clears the exhaust manifold.

Re: air intake

Posted: Fri Aug 02, 2024 8:37 pm
by Bill_qaz
stuffedpike20 wrote: Fri Aug 02, 2024 3:46 pm Thanks folks.

I think I am going to have to extend my pipe! :o
Which pipe? The breather from the rocker cover to filter?
Mine was from esm and it fits in either air cleaner position.

Re: air intake

Posted: Sat Aug 03, 2024 10:24 am
by olonas
I just cut fuel resistant rubber pipe to length. Yes, it requires two pieces for the desired summer/winter positioning of the air intake.
13mm/half inch inside diameter. I find that 20/21mm o.d. bends better.

Re: air intake

Posted: Sun Aug 04, 2024 6:21 am
by stuffedpike20
One very cold morning a long time ago, I had a carb ice up. I was doing 30mph. Came to a junction, and the revs did not come down.
A couple of minutes later when the engine had warmed up, the icing cleared.

Sadly, we do not get very cold mornings like that any more.

Re: air intake

Posted: Sun Aug 04, 2024 7:54 pm
by geoberni
I'm with Phil, just turn it about 25 deg Winter/Summer.....
At the Exhaust or Clear of Exhaust.
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Simples....
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Re: air intake

Posted: Sun Aug 04, 2024 10:08 pm
by exlkrs
Yes, just move away from the manifold. IIRC some earlier Welsh hats had a summer/winter transfer on the edge. It was a long time ago though!