AJS M14 Lightweight
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AJS M14 Lightweight
The light weight has two drain plugs one is longer than the other under the engine I presume that they are both BSF Thread! does any other club member able to identify these thread wise, size etc. and the washer used on both are they fibre
or copper. Many thanks Phil
or copper. Many thanks Phil
- Ozmadman
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Re: AJS M14 Lightweight
Have a look at these two threads. Not sure what the original washers were made of but probably copper but I have fibre ones on mine now.
http://www.jampot.com/forum/viewtopic.p ... gs#p155508
http://www.jampot.com/forum/viewtopic.p ... gs#p136325
http://www.jampot.com/forum/viewtopic.p ... gs#p155508
http://www.jampot.com/forum/viewtopic.p ... gs#p136325
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
- clanger9
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- Location: Chester, UK
Re: AJS M14 Lightweight
Both are 3/8" BSP 19 tpi [edit: NOT 5/8" UNF thread]. The rearmost (042201) plug is the short one with the magnet. The front one (042160) is longer and thinner.
Both have the same fibre washer (042186)
Both have the same fibre washer (042186)
Last edited by clanger9 on Mon Mar 05, 2018 6:40 pm, edited 1 time in total.
1989 Moto Morini Dart 350
1993 Ducati 750SS
1993 Ducati 750SS
- Ozmadman
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Re: AJS M14 Lightweight
UNF?? Interesting? I am sure my font plugs thread is more coarse than the rear one for some reason. Something to check when I next change the oil I thinkclanger9 wrote:Both are 5/8" UNF thread. The rearmost (042201) plug is the short one with the magnet. The front one (042160) is longer and thinner.
Both have the same fibre washer (042186)
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
- clanger9
- Posts: 1163
- Joined: Sat Jun 20, 2015 9:38 am
- Location: Chester, UK
Re: AJS M14 Lightweight
Now you've got me wondering! I measured the rear one as UNF. I'll need to check the front one now...
1989 Moto Morini Dart 350
1993 Ducati 750SS
1993 Ducati 750SS
- Ozmadman
- Posts: 2651
- Joined: Wed Dec 14, 2011 1:02 am
- Location: ESSEX UK
Re: AJS M14 Lightweight
Was wondering as everything else is either BSF or BSC which is a fine thread. Took pictures of most things but not those unfortunatelyclanger9 wrote:Now you've got me wondering! I measured the rear one as UNF. I'll need to check the front one now...
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
- clanger9
- Posts: 1163
- Joined: Sat Jun 20, 2015 9:38 am
- Location: Chester, UK
Re: AJS M14 Lightweight
Just checked: 5/8" 18 tpi, which I think means UNF.
Isn't BSF 5/8" 14 tpi?? Apologies if I've misled anyone...
Isn't BSF 5/8" 14 tpi?? Apologies if I've misled anyone...
1989 Moto Morini Dart 350
1993 Ducati 750SS
1993 Ducati 750SS
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Re: AJS M14 Lightweight
I have a lightweight drainplug and it is 3/8 BSP thread, it is the same as on my twin.
best regards
Poul
best regards
Poul
- clanger9
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Re: AJS M14 Lightweight
Poul is correct. I checked more carefully this time (my bad).
It's 19 tpi, 5/8" diameter. So 3/8" BSP.
It's 19 tpi, 5/8" diameter. So 3/8" BSP.
1989 Moto Morini Dart 350
1993 Ducati 750SS
1993 Ducati 750SS
- Ozmadman
- Posts: 2651
- Joined: Wed Dec 14, 2011 1:02 am
- Location: ESSEX UK
Re: AJS M14 Lightweight
So is that for both of them?clanger9 wrote:Poul is correct. I checked more carefully this time (my bad).
It's 19 tpi, 5/8" diameter. So 3/8" BSP.
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
1960 Model 8
1974 Yamaha RD250B US Model 6 speed