Cam Chain Tensioner swap

[B4ndit]

Right. Its time to get flamed again for asking a stupid question. Well it will be to those of you in the know.

Cam chain tensioner parts ahve been sourced and Twinmax is on its way to tune up afterwards.

Anyway I have been looking at a couple of simple ways to swap the tensioner over without mucking around with the timing etc. One point I am confusing myself over and here comes the stupid question part.

Of the two ways I have studied they differ in one minor way. But the way they disasemble the Throttle bodies is quite strict. One says remove the throttle bodies from the cylinder head at the flange as per picture 1.

The other shows the TB removed at the jubilee clip. As in picture 2.

(I hope these pics load up in the correct order).

At the moment I would prefer to remove at the large jubille clip. But is there a reason one author says remove at the flange. Or does it really matter. And if removed at the flange will I need a new gasket.

Thanks for any help in anticipation.

 

[MarkShelley]

It probably depends on what type of spanner you are going to use and how much access you need for it. Either way it is a pretty simple job. Even I could do it

 

[B4ndit]

Mark,

Not worried about the job. Just which is the best way to get the TB off?

 

[NeilDD]

Depending upon what tools you have in the box, it can be done without removing the TB's
If you want to remove the TB's then undo the jubilee clip would be my POV, then just a small bit of lube to push the TB's back in.

HTH
Neil

 

[B4ndit]

Depending upon what tools you have in the box, it can be done without removing the TB's

HTH
Neil

Thanks.

What magic tool will achieve this job without removing the TBs?

 

[dancata]

Every time I do it, I leave the rubber part on the engine. It ~ sticks to it because of the heat in time and I just loosen the clamp and get the TB off. Not that hard to do the job, most important is to keep the chain plastic guide in tension so that parts do not fall in (never had that happen but I think it is possible).

Dan.

 

[Jiffy176]

Bandit. Did mine not long ago. I used the guide on adv rider. I ordered a new tb o ring as the old had stretched. Took about an hour start to finish and I was taking my time. Would say its straight forward. I just lubed the new oring before slipping the tb back over it.

 

[B4ndit]

Yeh I was going to follow the Adv Rider guide. seems simple enough.

What lube is good for the O ring?

 

[(RIP) DitchWater]

Vaseline........................................................Really. You must have some by now.

Or rubber grease...

BTW. You need to clean those TBs.

 

[warmshed]

Yeh I was going to follow the Adv Rider guide. seems simple enough.

What lube is good for the O ring?

silicone grease, dont use PIP it might leak!

 

[dancata]

silicone grease, dont use PIP it might leak!

Are you sure? Silicone might poison the O2 sensor!

Dan.

 

[Trullion]

You've probably done it by now anyway, but FWIW I've just done the job on my 1100RS. Took exactly an hour, including and replacing the l/h fairing. I found it easier to take off the rubber manifold. In my case the injector body didn't seem to want to come out. Didn't need to renew any O rings, but I did this a few thousand miles ago when I had the heads off to replace the gaskets, so the rubber manifold came off very easily.

 

[Steptoe]

Reading this thread has taken longer than the job takes.

 

[B4ndit]

BTW. You need to clean those TBs.

They aren't mine. Haven't got mine off yet.

 

[B4ndit]

Reading this thread has taken longer than the job takes.

It helps to while away the long winter nights.

 

[MattW]

Because I feel left out...

The TB to cylinder rubbers on my 1100 were stuck solidly to the TB's so I just undid the two screws holding them to the cylinder head and tied the whole lot up out of the way.

Replacing the tensioner is straightforward - a bit of bent wire as per the ADV guide will be your friend.

I had to 'customise' (i.e. put in a vice and leather it with a club hammer to bend it) an offset ring spanner to get onto the tensioner bolt head (can't remember if it was the old one or the new one - conveniently they're different sizes).

 

[MarkShelley]

I couldn`t get any of my spanners onto it so I put a 3/8 drive socket on it then partially inserted one of those things for going from a 3/8 to the smaller size, just leaving enough of the square bit sticking out above the socket to get an open ended spanner onto it. Rather convoluted, but it worked a treat!

 

[Stewart H]

I ended up using a set of curiously shaped "Access ring spanners"

 

[B4ndit]

Well just got round to doing this, this afternoon. As everybody has said, it takes less than an hour. Engine is a lot quieter now

 

[Yeti]

Reading this thread has taken longer than the job takes.

If you're not arseing around trying to get the fiddly paperclip to hook the damn spring. Then it can take at least two beers long.