Re: What did you do to or for or with your Laverda today?

Eventually,but it was a long time. I cannot get a socket on them, I use a swiveling socket openender type spanner and even thats a full on pain getting past the frame big bore hearder and horn.In reality I need to pull the horns loose on the engine mount to get at all 6 nuts.
 
The oil is caused by what is known as scavening affect plain and simple or should I say lack there of it when the headers are not sealing correctly.

Your problem is down to the exhaust gaskets you are using they are flat faced not round so are a lot harder to achieve an ideal seal esp on a Lav ...never could quite understand the sense in going down that route to be honest.
For me  I use good old copper exhaust O rings which have a round profile which then crushes and does what its supposed to do. Nought any thing wrong with them plus the profile being round if the pipes arent dead square then they have some fudge.... If you get Honda 4 ones they are a bit thicker .

Shit the guides on the RGS are well past shot but it dont leak oil out there ... and hey as have grown up and a diet of Italian engines ( alfa etc.. ) not a fan of exhaust guide seals so dont fit them myself.
 
Brett said:
The oil is caused by what is known as scavening affect plain and simple or should I say lack there of it when the headers are not sealing correctly.

Your problem is down to the exhaust gaskets you are using they are flat faced not round so are a lot harder to achieve an ideal seal esp on a Lav ...never could quite understand the sense in going down that route to be honest.
For me  I use good old copper exhaust O rings which have a round profile which then crushes and does what its supposed to do. Nought any thing wrong with them plus the profile being round if the pipes arent dead square then they have some fudge.... If you get Honda 4 ones they are a bit thicker .

I have the same problem with my ?250 VW Golf!
No doubt the valve seals and guides are rubber ducked after 187,000 miles and some severe neglect (not by me I might add). If I go down a long hill and then open up at the bottom, there are whisps of blue smoke for a while.

I too favour the Copper rings gaskets.

I believe the seal is provided due to these seals crushing flat and thin, with the studs providing 'spring' to keep the pressure on when expanding and contracting.
As per Keith N's advice I smear Loctite Blue Gasket on the rings, to provide belt and braces sealing.

Even so there is a period when re-tightening is required, with the frequency stretching further out each time as the gasket flattens and studs 'load up'.

In general thin gaskets have a better track record of sealing than thick.
This is due to 'creep', which is the gradual compression of the gasket with heat cycles and thus relaxation on the studs/bolts. Having an Aluminium 'flange' doesn't help as they are weak as piss and bend with 'Gorilla Grip' tightening techniques.
 
Got a 1/4" drive 11mm socket with a 6" extension bar which gets to all six nuts just fine, so nipping them up on the go is not a problem.

The rings I took out were copper ones but had totally flattened off.  If this doesn't work I'll give the Honda 4 ones a go.  Seem to remember getting some good ones from Donna at Brancato Engineering for my 180.

It is only a wee drip, not a big deal but something I want to try to deal with while I'm waiting for my new shocks.

 
Reggie3cl said:
The rings I took out were copper ones but had totally flattened off.  If this doesn't work I'll give the Honda 4 ones a go.  Seem to remember getting some good ones from Donna at Brancato Engineering for my 180.

Flattening off is good!
The thinner the better.
 
Reggie3cl said:
Got a 1/4" drive 11mm socket with a 6" extension bar which gets to all six nuts just fine, so nipping them up on the go is not a problem.

Works OK with the RGS frame.  But the LH inner nut is just about inaccessable with the 180 frame, only way to do it up is with a cranked ring spanner.

piet
 
only way to do it up is with a cranked ring spanner.

I was wondering why I had one of those...

Had it running just now (after a very exasperating morning, bloody Chinese and their food) and the seal seems good.  Copper/silicone sealant Loctite solid- dunno how long it will hold on the road.  Will tighten up the nuts if there has been any movement  All part of the fun, innit?
 
Never had any luck with those and magically cured when I went back to copper rings...

That inner left hand nut is a right c*nt to get at even with extensions, universal joints and everything on my RGA. Will try the cranked ring spanner trick Piet!

--
Dick
 
VanguardontheLav said:
That inner left hand nut is a right c*nt to get at even with extensions, universal joints and everything on my RGA. Will try the cranked ring spanner trick Piet!

I use an open ended spanner - have to be careful not to round off the nut though!
 
VanguardontheLav said:
Never had any luck with those and magically cured when I went back to copper rings...

That inner left hand nut is a right c*nt to get at even with extensions, universal joints and everything on my RGA. Will try the cranked ring spanner trick Piet!

--
Dick

Dick,

Get yourself one of those "wobbly" extensions in 1/4", should work OK on all the nuts with a RGS/RGA frame. 

piet
 
I blasted round Wiltshire yesterday evening and was very glad no-one bought it and that I didn't sell it and decided not to!

Good ride, all round then.

Simon

 
sfcpiet said:
Works OK with the RGS frame.  But the LH inner nut is just about inaccessable with the 180 frame, only way to do it up is with a cranked ring spanner.
piet

I got a set of these Gearwrench indexable spanners recently:
85488.jpg

The head swivels through more than 180deg and one of the things they can reach which almost no other spanner can is the dreaded inner LH header nut on a 180.
 
Dellortoman said:
Honda 4 exhaust rings are the wrong size. Too small.
You sure about that ? if you measure the PCD to the centre of the material on both you get the same .. the inner dia is slightly less on the Honda one but then the outer is slightly greater.. as the Honda one cross section is 5/32 as apposed to the 5/64 of the Lav ones that I get from various supplies.

Nice set of gearset ratchets there Steve, makes the old Stahwille half moon look dated but it still works a gem

 

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Has Cams mammoth order of gaskets run out? These copper gaskets are available from your friendly local gasket manufacturer by the bag full - the cost is peanuts, any size you like.

Went for a spin on the Jota 120, getting towards bandit season on the roads with holiday makers.
Changed the oil for more Morris V Twin.
 
Hey Simon,

Exhaust gaskets for peanuts - of course, I didn't measure them before I put my first set in!

Any chance anyone knows the sizes to ask for - and are they the crushable folded over type?

Cheers,

Simon
 
sfcpiet said:
Get yourself one of those "wobbly" extensions in 1/4", should work OK on all the nuts with a RGS/RGA frame.

I think by "wobbly" extensions, you mean what I called the universal joint. I still find it difficult. Possible but difficult to get the proper torque on it. Here is my selection of ?" extensions...

IMG_0002.jpg


Still a c*nt!

--
Dick
 
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