Triumphrat

10-16-2005

After running the bike for 5 miles I noticed I have a leak coming off the left side of the T100 spindles. I would like to replace them but my question is this something I can do or is it better left to the garage? Thanks.

:???:

DAGAD · 10-17-2005

Hi Musicman, what 'spindles' do you mean?

10-17-2005

Sorry, the ones in the rocker boxes.

HankQ · 10-17-2005

Is the leak coming off the bottom of the rocker box, around the gasket? Hank

vik · 10-17-2005

I don't think it is something quite out of your reach. To get to the spindle the rockerbox needs to be removed first. What is annoying is that on the 500 unit engines the cylinder head bolts go through the rocker boxes. So removing at least two of them to get the troublesome rockerbox off the engine means that the whole cylinder head assembly could get disturbed. I'm not sure to what extent removing two bolts while leaving the other six in place will really affect the cylinder head copper gasket or indeed the whole tightness of the engine, or if it would be better to remove the whole cylinderhead first....

To cure the leak you need to push out the rocker actuating arm (spindle) there are bushes sealing it that you will have to replace, at this stage you can even consider installing modern oilseals

oilyboot · 10-17-2005

I followed these instructions. (many thanks to Triumph maestro R.F. Whatley) Over 3K miles so far, and not a hint of leakage. (Well, not from the rocker shaft seals, anyway)

"You can do this, but only on the exhaust OR the intake, not both at the same time.

Remove the valve caps and rotate the engine until the similar rockers are in the same loose position. (You may have to back off the adjusters a little.) Loosen the one acorn nut on the oil line and tap the shaft out with a brass drift until the large dia bob on the end of the shaft has just cleared the box by about 1 mm. (Total travel about 1/2 inch.)

Using a gentleman's pin knife, add a small chamfer to the rocker box to help guide the o-ring in. Remove the old o-ring. Douse the entire area in carb cleaner or lacquer thinner. Fill the o-ring grove level with sealer and roll the new o-ring on. It will squirt up a small pile of sealer on the inner side of the o-ring... leave it there.

Slowly tap the shaft back in place right away. The combination of sealer (as a lubricant) and the chamfer will work to put the new o-ring in an uncut condition. Wipe the excess sealer off the end of the shaft.
Allow at least 6 hours for sealer to set."

I suggest you buy a few spare o rings, just in case you damage one on your first attempt. I did.......

DAGAD · 10-18-2005

:gpst: There you go! Roy

10-19-2005

This is for Oilyboot Will I run into any problems with the washers coming off? (Tapping it out)

Musicman

oilyboot · 10-20-2005

MM,
The shaft only needs move about 1/2" or so to get to the o ring. This leaves the other (oil feed) end of the shaft protruding roughly 1/8" to 1/4" from the r-box, and all the washers, rocker arms, and springs stay in their respective places.

I've used this method on 2 unit 650's and one 'B' range 500 with good results. I'm by no means a Triumph expert, however, and I do not know if it will work on all types.

What model do you have? :???:

:???:

10-20-2005

I have a T100C Trophy. Thanks for the information. I figured that is what you meant in your original message. I feel that it is better to ask twice and not do something stupid.

Musicman