551 A race oddity

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MikeyBikey
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551 A race oddity

Post by MikeyBikey » Thu Jun 25, 2020 9:33 pm

I have a Type 9 that I know is so buggered I’ve not had the courage to open it up. Ive even sold the bellhousing but kept the box that I’m sure is a mausoleum to cogs and bearings


Is we sideways yet...

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Mon Jun 29, 2020 10:04 pm

The S13 rear selector rod was shortened & re-drilled to fit the S12 tail housing. This was just required for using the S13 gear selectors.

The part that was needed to make the B&M shifter bolt straight on is by swapping the cast piece that fits on the end of the selector rod, that the gear lever locates in to.
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The short casting is the S12, the longer one used in the S13 & S14.

By fitting the longer casting, the B&M quick shifter can be bolted on, by drilling an extra hole. Unfortunately, the castings can only be swapped by splitting the gearbox & removing the tail housing.
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This runs through the gears, but the lever on the quick shift had been previously modified and is loosely bolted together above. I cut in to both the upper & lower parts to slot the 2 bits together in a mortise & tenon joint that had much larger weld areas. I made it the same length & angle as the lever that was in the car, As I'd previously made this to suit me.
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The shifter is moved rearwards by 13mm
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So I may yet have to make the hole in the top of the tunnel larger to suit, I'll see when I put the engine & box back in the car, although I may do a temporary fit with a bare block to check this.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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reliant-reviver
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551 A race oddity

Post by reliant-reviver » Tue Jun 30, 2020 8:10 am

Some thought out parts parts swapping that. Should work nicely.


Aaaand we can all steal the ideas


Philip Andrew.
'74 Robin Super Saloon, '84 SS1 1300, '86 SS1 1800ti, '87 SS1 1300
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551 A race oddity

Post by Crouchie_b » Tue Jun 30, 2020 9:03 am

reliant-reviver wrote:
Tue Jun 30, 2020 8:10 am
Aaaand we can all steal the ideas
Yes we can!😎
Nice one Ben


Crouchie_b

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551 A race oddity

Post by stevecrosby63 » Tue Jun 30, 2020 9:37 am

excellent job Ben...hopefully it makes a reliable gearbox


i'm making this up as i go along :shock:

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