Johns cerbera rebuild and upgrade

[Engineer1949]

another good day today fitted the new exhaust to my old disco finished the front a arms completely built up a rear wheel and tyre and built up a rear upright with hub disc etc.start machining tomorrow.

john

DSCN1925 by Brundall Motorsport, on Flickr

DSCN1924 by Brundall Motorsport, on Flickr

DSCN1923 by Brundall Motorsport, on Flickr

DSCN1922 by Brundall Motorsport, on Flickr

DSCN1921 by Brundall Motorsport, on Flickr

DSCN1920 by Brundall Motorsport, on Flickr

[phazed]

That is coming along nicely now John.

You are putting a hell of a lot of work into this and the quality is spot on.

We all look forward to seeing the finished project and I look forward to passing it on track

[Engineer1949]

more machining today start the tube work for the near side a arms tomorrow.

john

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

[phazed]

Nice work.

I've always found that the spacings of the chassis lugs for the damper mounts are a little hit and miss with accuracy.

[Engineer1949]

those spacers and the spherical bearing are for the bottom a arm fixing at the upright end the other bits are the rod end carriers the shock mounts are rather different they have one fixed side and a bush which is floating on the other so easy to fit and tighten.

john

[Byker28i]

Wrong side for the tyre?

[Engineer1949]

first a arm tacked up in place top one today.

john

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

[Engineer1949]

got on really well yesterday got the suspension for the near side rear all tacked up sorted a location for the ARB just the tracking tie rod to do waiting for a left and right hand pair of rod ends should be here today.

john

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

Untitled by Brundall Motorsport, on Flickr

[Engineer1949]

got some more done yesterday made the mount for the chassis end of the track control arm and mig welded in place then turned up the ends for the track control arms for the rear nearside suspension got them tig welded into the tube and fitted also fully welded the top a arm.

john

DSCN1930 by Brundall Motorsport, on Flickr

DSCN1931 by Brundall Motorsport, on Flickr

DSCN1932 by Brundall Motorsport, on Flickr

DSCN1933 by Brundall Motorsport, on Flickr

DSCN1934 by Brundall Motorsport, on Flickr

DSCN1935 by Brundall Motorsport, on Flickr

DSCN1936 by Brundall Motorsport, on Flickr[url=https://flic.kr/p/AKCNuc]

[/url] DSCN1937 by Brundall Motorsport, on Flickr

[Engineer1949]

not a full day today sorting hydraulic steering on the dredger but got one end of the rear lower a arm fully sorted.

john

IMG_20151109_163752 by Brundall Motorsport, on Flickr

IMG_20151109_163805 by Brundall Motorsport, on Flickr

[Flatplane8]

Dredger? Do tell, I like boats......

[Engineer1949]

its a 60ft flat bottomed barge originally rivetted iron swimhead design like a london lighter siting on the stern is a 170hp 5 cylinder dorman powered harbour master in a rudimentry wheelhouse hold take around 30 tonnes dredging sitting on the bow is a kubota 191 with extended boom and dipper with a rotary controlled grab i get a couple of pics tomorrow.

john

[julian64]

Doesn't that give a fairly rusty environment?

[piers1]

Just read this from end to end, cannot wait to see how she turns out. Some fabulous engineering going into this, really enjoying your progress.

[Engineer1949]

managed to finish the last suspension corner today so all now done ready for finish next the exhausts start tomorrow wont bore you with more pics of the a arm just the reverse off the near side.


john

[julian64]

Just a comment about your lower arms, and I'm no engineer so probably to be taken with a pinch of salt

You have thick tubes with good looking welds going from inboard to outboard, but then it ends in what looks like a 10mm stud going into the main chassis and onto the wheel carrier.

Surely this 10mm stud is by far the weak point of your whole setup for the forces transmitted by the wheels to your chassis.

In the original Cerb you have a T shape metal bar bolted to the frame of the car which looks a lot stronger. I agree your setup is better for adjustment but those two areas look really weak compared to the rest of your setup?

[scerbera]

You would be surprised at how small a rose joint you can get away with, I would probably go a little bigger for the road myself though.

[mk1fan]

I'm going that they're either M12 or 1/2 inch given that's the size of the bolts used on the factory suspension.

[griffdude]

This Cerbera would be great in Timeattack.

http://www.timeattack.co.uk/

[Demondad]

Fascinating post, just hoping there will be a Christmas edition, and can't wait to see this on a race circuit-track. Any race series entries planned?