timing chain

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61austinseven
Basic 850
Posts: 57
Joined: Mon Aug 08, 2011 3:48 pm

timing chain

Post by 61austinseven »

help iam rebuilding a 850 engine .
i got a duplex timing chain witch i have fitted,
when i do up the crank bolt up it locks the crank up .
is this due to the duplex cogs being wider then a single chain.
the engine is a 1961,any help would be great
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Simon776
1275 Cooper S
Posts: 1181
Joined: Thu Jun 24, 2010 6:08 pm
Location: Shakspere's county

Re: timing chain

Post by Simon776 »

The two nuts by the bottom sprocket need replacing with countersunk screws.
The power of accurate observation is commonly called cynicism by those who do not possess it.
InimiaD
1275 Cooper S
Posts: 1526
Joined: Thu Jul 01, 2010 11:20 pm
Location: West of Offas Dyke.

Re: timing chain

Post by InimiaD »

Here's a pic which substantiates what Simon has said.

Image

Borrowed from DVs book. ;)
814CWE
998 Cooper
Posts: 712
Joined: Fri Jun 25, 2010 1:24 pm
Location: in my workshop

Re: timing chain

Post by 814CWE »

a good quality kit should usually have the countersunk set screws with it,,, :o
for my sins,i own a 1957 wolsleley 1500
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