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#506012 - 09/13/13 9:43 am T140 Air Cleaner Alternatives  
Joined: Aug 2002
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Doc_dup1 Offline
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Santa Barbara
I ran into a friend last night who had just bought a 78 T140. The bike has been converted to the dry frame type side covers and it is running with no air cleaners. Are there any pancake style filters available for the MK2 carbs that would fit this bike?

Thanks,

Doc


Doc

Mostly Triumphs with a few BSA's and a Norton.

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#506017 - 09/13/13 10:24 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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calal Offline
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San Luis Obispo California
Ought to be something at K&N...

knfilters.com

Alan


'71 T100 Daytona
#506052 - 09/13/13 2:53 pm Re: T140 Air Cleaner Alternatives [Re: calal]  
Joined: Nov 2008
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desco Online content
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desco  Online Content
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Bishop, Calif.
Click on Northern Eagle Cycles in the sponsors box. He's got a lot of nice looking set ups. I've got two of 'em.
http://www.mikesxs.net/products-40.html#products
Forgot about this guy.

Last edited by desco; 09/13/13 3:39 pm. Reason: addition

1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
#506076 - 09/13/13 6:03 pm Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
Joined: Jun 2007
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HawaiianTiger Online content
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HawaiianTiger  Online Content

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Maui Hawaii
I'd avoid the pod type filters on these bikes. OK for a Jap four cylinder, but these bikes need more surface area. If you can use a stock air filter on there(as in the sixties style ones) Air filters , that would be great. They're available from Emgo for very reasonable price now.

Bill


Bikes
1974 Commando
1985 Honda Nighthawk 650
1957 Thunderbird/T110 "Flying Tiger"
Antique Fans: Loads of Emersons (Two six wingers) plus gyros and orbiters.
#506078 - 09/13/13 6:21 pm Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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htown Online content
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Magnolia, TX
The pancake filters won't work on the Mark II carbs on the parallel port heads unless you use a bodge to turn the carb or the air intake. I've seen pictures of this done but it looks kind of funky.


1978 Bonneville T140E
1974 Trident
1970 BSA Thunderbolt
1971 Norton Commando
1972 Norton Commando
2-1974 Norton Commandos
2004 XL 1200R Sportster

Everything will be alright in the end. If its not alright, its not the end.
#506115 - 09/14/13 1:26 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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Stuart Online content
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Hi,

Originally Posted By: HawaiianTiger
I'd avoid the pod type filters on these bikes. OK for a Jap four cylinder, but these bikes need more surface area.

With respect, Bill perhaps isn't aware of the number of different 'pod filters' K&N offer ... somewhere on the K&N site (but I can't find it at the moment frown ) is a chart showing them all, and there are dozens ... Nevertheless, e.g. for a T160 and for a T150 - although the T160 one is a smaller diameter than the T150 one, the T160 one is longer to maintain surface area. I've been using the T160 ones on at least one of my bikes since the early 1980's no problems.

Turning to "sixties style ones", Triumph used an offset mounting on certainly the single-carb. 500's, though whether the offset is enough to fit two side-by-side on parallel Mk.2's, I don't know.

Hth.

Regards,

#506125 - 09/14/13 4:54 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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Blackie Offline
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Blackie  Offline
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Brisbane Australia
Allens Perfomance parts have Rubber intake Maifolds that angles the carbs, then you can use pancake filters.the manifold part number SR34K. Seen some nice home made ones, but skill level needed for this is quite high.


82 Bonnie
69 Bonnie project
Army Beeza
#506132 - 09/14/13 6:40 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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AngloBike Online content
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UK Berks
there are offset Round old style filters that fit the parallel heads

I don't know the model number

look up the T140 shop in the uk to see them

#506174 - 09/14/13 10:54 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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Doc_dup1 Offline
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Santa Barbara
Thanks for all of the information. I'll pass it along to my friend and encourage him to sign up for this site.

Doc


Doc

Mostly Triumphs with a few BSA's and a Norton.

#506192 - 09/14/13 12:20 pm Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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AngloBike Online content
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UK Berks

#506220 - 09/14/13 2:39 pm Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
Joined: Jun 2007
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HawaiianTiger Online content
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Maui Hawaii
This kind no bueno. You can see what happens.
Bill


Bikes
1974 Commando
1985 Honda Nighthawk 650
1957 Thunderbird/T110 "Flying Tiger"
Antique Fans: Loads of Emersons (Two six wingers) plus gyros and orbiters.
#507796 - 09/25/13 8:17 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
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Tom_dup1 Offline
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England
I made an Air Filter assembly a few years back. Didn't work too well at the time as it strangled performance and the carbs drooped. This year I turned down and radiased the rear stubs to create a more favourable angle for the air coming in from 90 degrees. Whereas the Concentric MKI seems to be designed with pancake type filters in mind the inlet stubs on the MKII's seem to be designed for airflow entering from the rear only IMHO. Plus made a bracket to support it attaching to the head steady mount on the frame above, if not the carbs sag on their rubber mountings. Seems to work fine now:



HTH

Tom

#507825 - 09/25/13 2:05 pm Re: T140 Air Cleaner Alternatives [Re: Stuart]  
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Allan Gill Offline
Allan Gill  Offline



Joined: May 2013
Posts: 4,533
Rotherham - S. Yorkshire
Originally Posted By: Stuart
Hi,

Originally Posted By: HawaiianTiger
I'd avoid the pod type filters on these bikes. OK for a Jap four cylinder, but these bikes need more surface area.

With respect, Bill perhaps isn't aware of the number of different 'pod filters' K&N offer ... somewhere on the K&N site (but I can't find it at the moment frown ) is a chart showing them all, and there are dozens ... Nevertheless, e.g. for a T160 and for a T150 - although the T160 one is a smaller diameter than the T150 one, the T160 one is longer to maintain surface area. I've been using the T160 ones on at least one of my bikes since the early 1980's no problems.

Turning to "sixties style ones", Triumph used an offset mounting on certainly the single-carb. 500's, though whether the offset is enough to fit two side-by-side on parallel Mk.2's, I don't know.

Hth.

Regards,


The Jap fours don't like the pod filters either Bill, it tends to strangle performance, the big air box like the Trident/R3 had and same as the stock item on jap 4's work a lot better and each carb gets its equal share of air flow. - A bigger box is more space for the air to collect.

K and N do filters in which dual carbs can share the same filter, you would have to scan through their site for sizes as I don't know what would work on the T140 size wise.

Anything with a trumpet on the inside of the box works great, your creating a venturi stack effect and keeping the air clean.


beerchug
#507828 - 09/25/13 2:27 pm Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
Joined: Aug 2001
Posts: 6,894
triton thrasher Online content
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scotland

Do you have room for this?
http://www.knfilters.com/search/product.aspx?prod=r-0990



Quote:
Part R-0990 Product Specifications
Product Style: Dual Flange Oval Universal Air Filter
Flange Center to Center: 2.625 in (67 mm)
Flange Inside Diameter: 1.875 in (48 mm)
Flange Length: 0.625 in (16 mm)
Flange Type: Offset
Height: 3 in (76 mm)
Outside Length: 6.125 in (156 mm)
Outside Width: 3.875 in (98 mm)
Top Style: Rubber
Top Material/Finish: None
Air Filter Shape: Oval
Filter Material: Cotton Gauze
Flanges: 2
Base Outside Length: 6.125 in (156 mm)
Base Outside Width: 3.875 in (98 mm)
Filter Re-Oiling Amount: 0.57 oz (17 ml)
Flange Offset: 0.375 in (10 mm)
Footnote 1: Base Has 13/64" Vent
Top Outside Length: 6.125 in (156 mm)
Top Outside Width: 3.875 in (98 mm)
Weight: 1 lb (0.5 kg)
Product Box Length: 4.63 in (117 mm)
Product Box Width: 4.63 in (117 mm)
Product Box Height: 7.25 in (184 mm)

K&N R-0990


Amateur Loctite enthusiast.
#507904 - 09/26/13 4:36 am Re: T140 Air Cleaner Alternatives [Re: Doc_dup1]  
Joined: Jun 2002
Posts: 9,297
Stuart Online content
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Scotland
Hi Doc,

Originally Posted By: Doc_dup1
78 T140.
MK2 carbs that would fit this bike?

What no-one seems to have asked is whether the Mk.2's are o.e. on an early parallel-port head or after-market on a more-common splayed-port head?

Talking of K&N's, I don't know whether it's intended as a replacement for the chart of universal (aka 'pod') filters but the K&N site has a Search by Dimension option. If you friend's bike has a splayed-port head, clicking on one of the "Round ..." options actually allows searching by three from twelve different dimensions, including for angled or offset inlets. Otoh, if your friend's bike has a parallel-port head, either of the "Dual Flange ..." options allows searching with the additional "Center to Center" option as well as the other twelve.

Hth.

Regards,


Moderated by  John Healy 


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