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Small journal crank in Auto block

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graham in aus

Post subject: Small journal crank in Auto block

Posted: Tue Mar 11, 2008 11:02 am

1098cc

Joined: Thu Jul 15, 2004 9:53 pm
Posts: 1768
Location: Lake Macquarie NSW

Can this be done? I know about the mods to the block for Auto to manual conversion, as per the good Docs sticky; but are small journal 1100S cranks narrow across the centre main like an S crank?

Will I need to thin the thrusts ?

PS I did a basic topic search, but did not find an answer to this one! :oops:

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Boostedmini

Post subject:

Posted: Tue Mar 11, 2008 12:46 pm

998cc

Joined: Thu Sep 23, 2004 2:24 pm
Posts: 1170
Location: Quakers Hill - Only the Hills

Hi Graham,

I am not 100% sure but i am sure that the large journal crank from 1100 "S" is the same as the small journal 1100 "S" crank.

but I could be wrong.

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drmini in aust

Post subject: Re: Small journal crank in Auto block

Posted: Tue Mar 11, 2008 1:04 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39750
Location: near Baulkham Hills, NSW

graham in aus wrote:

PS I did a basic topic search, but did not find an answer to this one! :oops:

Graham, it drops straight in with std thrusts. Mains on small and large J cranks are the same.

You only need thicker thrusts if putting non-S crank into an S block, or thinner thrusts if putting a S crank into any 1275 non-S block (like my 1360).

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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graham in aus

Post subject:

Posted: Tue Mar 11, 2008 7:53 pm

1098cc

Joined: Thu Jul 15, 2004 9:53 pm
Posts: 1768
Location: Lake Macquarie NSW

Ah good! Thanks Grant and Doc. my posts been on half the day waitng for someone "in the know" excellent!

Just trying to help out supercooper with a big block build!

Fancy doing a block conversion for us Kev?

PM me with the $ damage or equivalent in slabs! :lol:

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drmini in aust

Post subject:

Posted: Tue Mar 11, 2008 8:32 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39750
Location: near Baulkham Hills, NSW

PMs sent.
Good to see another 1275 auto block being resurrected as a manual. :wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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Post subject:

Posted: Wed Mar 12, 2008 8:03 am

1275cc

Joined: Wed Jan 19, 2005 1:52 pm
Posts: 2581
Location: Brisbane

Animal the Nb that Matt68 now owns has an auto block. I went through about manual 5 blocks to find a block suitable for 020 bore.

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drmini in aust

Post subject:

Posted: Sat Mar 15, 2008 8:36 am

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39750
Location: near Baulkham Hills, NSW

TK wrote:

Animal the Nb that Matt68 now owns has an auto block. I went through about manual 5 blocks to find a block suitable for 020 bore.

I have a good std bore 1275 auto block here if anybody needs one. Would clean up at +.020" no problem. :wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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Morris 1100

Post subject:

Posted: Sat Mar 15, 2008 3:45 pm

Causing or creating vexation

Joined: Wed Jul 21, 2004 10:32 pm
Posts: 19124

drmini in aust wrote:

TK wrote:

Animal the Nb that Matt68 now owns has an auto block. I went through about manual 5 blocks to find a block suitable for 020 bore.

I have a good std bore 1275 auto block here if anybody needs one. Would clean up at +.020" no problem. :wink:

I have an auto gearbox to stick under it. :lol:

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drmini in aust

Post subject:

Posted: Sat Mar 15, 2008 7:43 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39750
Location: near Baulkham Hills, NSW

Morris 1100 wrote:

drmini in aust wrote:

TK wrote:

Animal the Nb that Matt68 now owns has an auto block. I went through about manual 5 blocks to find a block suitable for 020 bore.

I have a good std bore 1275 auto block here if anybody needs one. Would clean up at +.020" no problem. :wink:

I have an auto gearbox to stick under it. :lol:

.... but, why would you bother.... :lol:

They suck too much HP.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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TheMiniMan

Post subject:

Posted: Sat Mar 15, 2008 8:09 pm

Bimmer Twinky

Joined: Mon Sep 06, 2004 4:36 pm
Posts: 8606
Location: Brisbane

yeah i have a friend who owns a boat that needs a good anchor :-)

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