motor still smokes

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Re: motor still smokes

Postby preston » Mon Jan 11, 2010 10:11 pm

santa barbara ca.
born here and never found it neccesary to move thank goodness
snows couple times a year maybe on top of mountains
preston
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Re: motor still smokes

Postby Hortons Norton » Tue Jan 12, 2010 8:20 am

Yea I can see a bit of snow on top of Baldy, Preston snow in Santa Barbara? (Looks like another sunny day, I love L.A.) you know the song. Now if we could just get rid of about 5.9 million people it might be nice.
1975 Commando MKIII
1972 Combat
1998 Buell S1
1998 Buell S1W
2005 Triumph Thruxton
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Re: motor still smokes

Postby preston » Sat Jan 16, 2010 1:01 am

it does snow in s.b.
finally down loaded pics from phone.

Image

Image
pics looking from top of peak at santa barbara the harbor and islands
and back to the back country lake cachuma s.b.water supply i love riding here

Image


tried loading engine photos before changing seals giving up wasted hr. hope this worked
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Re: motor still smokes

Postby B+Bogus » Sat Jan 16, 2010 3:34 am

Hey Preston,

This is what it looked like near Preston UK recently

Image

Love the bike.....but the jacket? Hmmmm :shock:

:mrgreen:
Cheers,

Andy

1974 Commando Roadster
1964 650SS Cafe Racer project
Production Racer project in gestation
1975 Ducati 900ss x2
1976 Triumph Bonneville
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Re: motor still smokes

Postby click » Sun Jan 17, 2010 6:22 am

Hi Lads,

re: 1975 850 ES (920 conversion)

I've found this thread really interesting & informative, thanks to all.

I just had my Commando out today & noticed it is smoking from the RHS only. As I rev the bike there is what looks like white smoke coming for the RHS exhaust only.

From doing a search from this great forum I've narrowed down these possibilities:

1. Rocker shaft orientated incorrectly

2. Valve guide seal

3. Worn valve guides

4. worn bore (but compression is OK & the 920 barrels only have 1500 miles on them)

I read about the rope trick allowing you to release the valve spring & get at the seal.

I've also read about disconnecting the banjo feed to the rocker box. Can you just put the banjo bolt back into the head using a plain nut as a spacer?

Since you've disconnected the banjo is this not a feed pipe? will oil just start coming out of this rocker feed pipe?

Thanks in advance

Kevin
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Re: motor still smokes

Postby ludwig » Sun Jan 17, 2010 9:15 am

Kevin ,
don't disconnect the oil lines at the head .
Ride the bike first for a short distance , to make shure the rocker shafts are well lubed .
Disable the oil feed at the timing cover ( bottom banjo) by replacing the drilled bolt by a plain bolt .
You can safely ride the bike like this for 5 to 10 min .
Don't forget to restore the oil feed afterwards !
Remember the rules ..
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Re: motor still smokes

Postby Hortons Norton » Sun Jan 17, 2010 9:54 am

OK OK Preston, I guess it does snow there. We better get our rides in today as they say we are going to have rain this next, Need to get the Norton out for a spin today. Thanks for the pics. Chuck.
1975 Commando MKIII
1972 Combat
1998 Buell S1
1998 Buell S1W
2005 Triumph Thruxton
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Re: motor still smokes

Postby click » Sun Jan 17, 2010 1:18 pm

ludwig wrote:Kevin ,
don't disconnect the oil lines at the head .
Ride the bike first for a short distance , to make shure the rocker shafts are well lubed .
Disable the oil feed at the timing cover ( bottom banjo) by replacing the drilled bolt by a plain bolt .
You can safely ride the bike like this for 5 to 10 min .
Don't forget to restore the oil feed afterwards !


Hi ludwig,

Dooh!!! :roll: should have figured that out myself :roll: :roll:

Thanks for clearing that up.

Kevin
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