Laverda 100: cylinder head: unknown hole ???

M

Michele

New member
Location
Germany
Hi guys,

I`m currently restoring a Laverda 100 Gran Turismo . When I was fitting the cylinder head, I noticed a small hole with a spring in the cylinder head, which is not shown in the spare parts drawing. Does anyone know the function of this hole and can tell me whether there are any other components in addition to the spring?
Many thanks in advance

Michael from Freising / Bavaria
 

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Michele said:
Hi guys,

I`m currently restoring a Laverda 100 Gran Turismo . When I was fitting the cylinder head, I noticed a small hole with a spring in the cylinder head, which is not shown in the spare parts drawing. Does anyone know the function of this hole and can tell me whether there are any other components in addition to the spring?
Many thanks in advance

Michael from Freising / Bavaria
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Paul Marx said:
I don't know what it is. There's not many documents.
This might be useful: http://laverda-100cc-en-provence.e-monsite.com/pages/historique-et-documentations.html
The British club edited a small booklet on a private restoration a couple of years back.

Paul
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Luigi might know the answer
 
There's a steel ball missing. This bears on the side of one of the rockers, pushing it against the other and thus eliminating any clatter that may be caused by excessive side clearance. Pretty clever system actually.

Don't know when it was introduced, but I've got a couple of heads like that.

piet
 
Hello everyone,
I have also noticed that there is almost no information on the www about the small Laverda's. Thank you very much for your information - that helps me a lot.

Here are a few pictures from the sad beginning (head and engine mount now ok again)...

Best regards
Michael
 

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Michele said:
Hello everyone,
I have also noticed that there is almost no information on the www about the small Laverda's. Thank you very much for your information - that helps me a lot.

Here are a few pictures from the sad beginning (head and engine mount now ok again)...

Best regards
Michael
Click to expand...
The rear engine mount was also broken on my 100 Turismo. There's still two mounts to the frame rails, no worry.
The lower mounts being rubber mounted, all vibration goes to that rear mount. I reinstalled it with some slop to leave the engine move about a bit.
Paul
 
Interesting! I have a couple of bare 100cc heads and wondered what the heck the hole was for. Worth making the mod to a 75cc head?
Chris
 
Paul Marx said:
The rear engine mount was also broken on my 100 Turismo. There's still two mounts to the frame rails, no worry.
The lower mounts being rubber mounted, all vibration goes to that rear mount. I reinstalled it with some slop to leave the engine move about a bit.
Paul
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That Paul, will allow the rear mounts to be torn from the frame even quicker! Good thing you pursued a career in medicine... ;)

piet
 
Michele said:
Hello everyone,
I have also noticed that there is almost no information on the www about the small Laverda's. Thank you very much for your information - that helps me a lot.

Here are a few pictures from the sad beginning (head and engine mount now ok again)...

Best regards
Michael
Click to expand...
If you want restoration info on the 100 then ILOC produced a very good booklet based on a full restoration project by Andy Laverton. Copies may still be available from the club.
 
Hi Andy,
do you have contact to Andy Laverton? I've contacted him via Facebook, but I think he's not very active on Facebook :(-
 
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