From: Roger Gill, YORK,PRODUCTION
Date: Wed, 24 Mar 1999 19:02:50 +0100
Subject: [imps] 1120 cc engine problem
To all you expert competition engine builders out there,
I had a problem whilst building my 1120 motor, originally the engine was to be built using a Chessman angled head, which had been extensively skimmed, I assembled the head etc. but unfortunately the head was cracked and has been sent for repair, so on goes another race head, but when it came to fitting the timing chain it was tensioned akin to piano wire, although I managed to get it on I'm not happy, does anyone know the solution, as when you add a link to the chain you have to effectively fit two, which make the chain very slack,
any idea's ?
From: Robin DH
Date: Wed, 24 Mar 1999 19:22:14 -0000
Subject: [imps] Re: 1120 cc engine problem
It is possible to buy a half link.
Date: Wed, 24 Mar 1999 19:20:57 +0000
From: Andrew W. MacFadyen
Subject: [imps] Re: 1120 cc engine problem
Unusual ! before you doing anything it might be an idea to count the number of links in the chain and compare it with a standard chain.
Only other idea I have is to skim the cam carrier and use thinner tappet shims or skim the vale tops down by the permissable amount.
Date: Thu, 25 Mar 1999 08:20:02 -0600
From: ABryson@sperry-sun.com
Subject: [imps] Re: 1120 cc engine problem.
You need a chain with an extra 1/2 link. That is what is in my engine it was supplied by Hartwell. I don't know where you can get one now.
Date: Thu, 25 Mar 1999 08:45:04 +0000
From: Andrew W. MacFadyen
Subject: [imps] Re: 1120 cc engine problem
Reynolds chains should be able to supply links without any problems.
Date: Fri, 26 Mar 1999 05:53:42 -0800 (PST)
From: Si Trickett
Subject: [imps] Re: 1120 cc engine problem
give Vince Frost at Merln Motors a call (01352 720280)
he has lots of pucker Reynolds chain, just tell him the number of links (number you have +1)
What an earth is all this talk of 1/2 links!!!!!
you can not have 1/2 a link
Date: Fri, 26 Mar 1999 19:00:41 +0000
From: Andrew W. MacFadyen
Subject: [imps] Re: 1120 cc engine problem
Yes you can they have stepped sides :-)
From: Gary and Carol Henderson
Date: Sat, 27 Mar 1999 09:23:16 +-1200
Subject: [imps] Re: 1120 cc engine problem
Well, it could be said that you can't really have one link - normal links must always come in twos. A 'half-link' is the hermaphrodite version, of which a single link can take the place of a normal pair.