Triumphrat

BroederL · 05-11-2011, 06:11 AM

Had a weeping camcover and brought my Bonnie in yesterday. Told the dealer I heard there was a new gasket for the Bonneville which he could confirm after checking with Triumph. But Triumph states that the new gasket is only for more recent Bonnevilles (don't know from wich engine number - not my 2010), so the dealer deduced there must be a (minor) change in the camcover... I'm getting the 'old' gasket, I'm confident this will stop the weeping.

Greetings.

Forchetto · 05-11-2011, 06:19 AM

Quote:

Originally Posted by BroederL

Had a weeping camcover and brought my Bonnie in yesterday. Told the dealer I heard there was a new gasket for the Bonneville which he could confirm after checking with Triumph. But Triumph states that the new gasket is only for more recent Bonnevilles (don't know from wich engine number - not my 2010), so the dealer deduced there must be a (minor) change in the camcover... I'm getting the 'old' gasket, I'm confident this will stop the weeping.

Greetings.

Interesting. They might have made the joint face a little wider, this would help with leaks.

This is all speculation though, like lots of other things. Surely this forum has enough clout with Triumph to be able to obtain some reliable data from them.

After all this leaking business is THEIR problem, not ours. A little technical explanation from one of their technicians as to the causes and cures wouldn't come amiss.

HkmadeCCC · 05-11-2011, 01:42 PM

Quote:

Originally Posted by BroederL

Had a weeping camcover and brought my Bonnie in yesterday. Told the dealer I heard there was a new gasket for the Bonneville which he could confirm after checking with Triumph. But Triumph states that the new gasket is only for more recent Bonnevilles (don't know from wich engine number - not my 2010), so the dealer deduced there must be a (minor) change in the camcover... I'm getting the 'old' gasket, I'm confident this will stop the weeping.

Greetings.

My Bonneville is a 2010 base model. It had the "old" gasket when I bought the bike new, but with the new gasket (T1260904) installed, the leaks seem to have stopped just fine. If your dealer is correct that there is indeed a slight change in the cam cover for the more recent Bonnevilles, I would expect that the dealer would swap out the cam cover under warranty when they addressed the leaking cam covers, too. Regardless, good luck with your fix. Hope your dealer puts a stop to your oil weep.

tbirdsp · 05-11-2011, 02:34 PM

I talked to a technician at a nearby dealer. He said they have been using extra washers on top of the rubber ones. Didn't seem to know about any new spec washers or seals. One thing he did say that was interesting - on the powder coated covers sometimes the powder coat causes an uneven edge on the bottom of the cover. He suggested carefully sanding the powder coat off of the edge.

plasma · 05-12-2011, 11:16 AM

Quote:

Originally Posted by Forchetto

All this is just conjecture at the moment. Data gathered as we go along.

I would imagine the dealers will get a Service bulletin or at least a web address where they can check to see if the bike they're about to service is subject to any changes.

Wouldn't it be nice if someone in the know from the factory was seconded here for a few hours each month to answer all sorts of questions, eh?.

Forums such as this do a lot for them, sales, loyalty, etc and we can't even share an out of date electronic file of a service manual that has been superceded by a new edition...

Pathetic.

And yet you can go to project www.gutenberg.org and download War and Peace for free for your Kindle electronic book.

Good post Sir if only.

Plasma.

tooblekain · 05-13-2011, 02:26 PM

Can anyone take a picture of the new cam cover gasket and seating washers?

lam@ratf · 11-13-2012, 06:08 PM

Quote:

Originally Posted by Forchetto

Thanks for that. It now looks as if both components responsible for the tiresome leaks reported from the cam cover have been updated and presumably improved.

These are the items to look out for if you are plagued by leaks:

The Sealing washer T1260337 rather than the old T1260309.

The Cam cover gasket T1260904 rather than the old T1260900

This needs to be a closed sticky at the top of every cam leak thread. Took me 40 minutes to track down and confirm theses numbers.

Thanks Forchetto

Forchetto · 11-13-2012, 06:18 PM

Quote:

Originally Posted by tooblekain

Can anyone take a picture of the new cam cover gasket and seating washers?

I don't have the new gasket to compare but I have both sets of washers. Not much help though, the new ones are slightly larger and appear to be made of a different material:

mikeinva · 11-13-2012, 06:41 PM

The gasket has never been the trouble any way its the washers.

Bonnie1000th · 11-13-2012, 07:02 PM

The old style cam cover, cam cover gasket and cam cover seals are use up to engine number 456551 for the entire classic model lineup.(2001-2009).
The new cam cover, cam cover gasket and cam cover seals goes from engine number 456552 for the entire classic model line up( 2009 to present).