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  Author    Engine respray and cage  (currently 5,355 views)
Joost van Dien
Posted on: September 7th, 2008, 15:22:56 Quote Report to Moderator
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Hello,

I've been bussy preparing the engine for a respray. And this is the result. The colour is the same as the stripe that will run over the car and the nose.  
Front
Back
First I sanded the engine to get rid of the rust. Then I sprayed 2 K epoxy on and wet on wet sikkens 2 K car paint. And ive polished the clutch housing! Please comment! (The pulley housing need work so dont look at that!)

And the cage is in the making. Here some photos. (The hoop is going new because it needs a dubble bend, so dont look at it please) There is much more to come but this is a rough base.

The cross
Above the doors
Love this picture...

Please post comment!

Cheers


Last modified September 7th, 2008, 15:25:27 by Joost van Dien
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paul harcourt
Posted on: September 7th, 2008, 18:47:37 Quote Report to Moderator
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Looking good Joost, keep going!
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Joost van Dien
Posted on: September 7th, 2008, 19:17:19 Quote Report to Moderator
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Thanks you! Most of the suspention is ready to fit so if my front subframe had an acid bath I will put it together and test the coilover setup.. its compleetly differend from a normal suspention!

Last modified September 7th, 2008, 19:18:00 by Joost van Dien
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Syd Crawford
Posted on: September 8th, 2008, 00:43:53 Quote Report to Moderator
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Nice work Joost! While you are in the roll cage making stage you may want to think about rear harness mounts (if you will be using them) also testing were the main hoop location is in regards to the seats. Also, you can't register a car here with a full cage. Just some thoughts, in case it helps.

Syd
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Joost van Dien
Posted on: September 28th, 2008, 15:54:18 Quote Report to Moderator
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Hello,

An update about the suspension so far.

I've blanked all the parts with a very hard steel brush which I fitted on the grinder. It works very well it only cost you a lot of hours for all the parts .
Then I sprayed 2k epoxie and then wet on wet Autocolor 2k car paint, the same color as the car gets! (sneak preview) I've made a compilation about the new and refurbished parts!


Rear setup with refurbished radius arm (not included brake setup)

Other side with new brake line and new bearings for the hub

Piece of the front setup with refurbished arm

Front brake and suspention setup with brake line

Front again
My excuse for the photos that laydown.. but can't get them right..

Please comment!
cheers

Last modified September 28th, 2008, 17:46:06 by Joost van Dien
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Syd Crawford
Posted on: September 28th, 2008, 22:53:48 Quote Report to Moderator
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Well, that's just mini porn
Make sure you check for clearance with the coil overs. My friend had no front suspension yesterday at a race meeting here until he realised the bottom flange  that holds the spring on the coilover was locking up against the subframe tower. Fixing that improved his times by 2 seconds!

Last modified September 28th, 2008, 22:54:56 by Syd Crawford
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Tertius van Zyl
Posted on: September 29th, 2008, 05:49:17 Quote Report to Moderator
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Syd, I recall someone here once telling me that ex motorcylce coilovers could be used on the rear in order to save costs. Ever heard of that?
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Joost van Dien
Posted on: September 29th, 2008, 20:21:10 Quote Report to Moderator
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I will check that!! tnx for the tip . And I forgot to reply on youre harnass tip! I've asked it at the company that build the rollcage. And they borrowed me a book that was about race regulations! There was a specific angle for he harnass belts... But they told me that the chance that the would check this when its gets its plates is very small! But I've mesured it a bit and I think the angle is pretty near the right angle.. thats because the seats are further forward and the tube is in line with the bolts were you connect the rear subframe with the car.. if you know what I mean  . I hope I can post new pics from the cage next week!

cheers
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Syd Crawford
Posted on: September 30th, 2008, 04:00:28 Quote Report to Moderator
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mmm... no I haven't heard that you can use motorbike coilovers. Maybe it is just the spring part with a modified mini Damper? I want to race mine in production sports so I can't use them anyway (my friend was just using the damper part of the coilover).
Look forward to seeing some completed roll cage pics Joost. I am going to have to make a cage for mine so I am always looking at different designs for idea's. I'll have to make the front part of mine removovable which is a PITA (for either road/race use). From memory I think the harness mount has to be within 20 degrees of horizontal.
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Joost van Dien
Posted on: October 5th, 2008, 16:17:12 Quote Report to Moderator
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Drive it as much as possible!


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hello,

New photos from the cage! Its not compleet yet but nearly. Its A fully removible cage.


The front. Cross in the doors need to be completed, above window tube, and diagonal above the head.

Rear piece. Hoop is different with a bend in it. Extra tube between cross and diagonal for more stifniss but needs to be added.

Taken from front window

Please post comment

Cheers

Last modified October 5th, 2008, 16:18:37 by Joost van Dien
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Syd Crawford
Posted on: October 5th, 2008, 21:21:09 Quote Report to Moderator
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Thanks for the pics. Havn't seen a main hoop bent at the bottom like that. Keep up the good work.
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Gert-Jan Westerveld
Posted on: October 10th, 2008, 19:03:40 Quote Report to Moderator
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Its splendid   I am getting jealous.

Rebuild engine  1312CC  .    
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John Dickens
Posted on: October 11th, 2008, 09:47:13 Quote Report to Moderator
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Motorcycle coilovers are much narrower but they're not really built for the hard life they would get in a car wheel arch. I suspect the seals wouldn't last too long in this location.
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admin
Posted on: October 11th, 2008, 10:57:44 Quote Report to Moderator
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When we made some enquiries a while back, Huddersfield Spares were doing rear beam and coilover kits with Avo shocks. We concluded that you would need 70lb/in springs at the back for a Mini Marcos. I guess that's about 1.25kg/mm (or t/m).
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John Dickens
Posted on: October 11th, 2008, 18:19:42 Quote Report to Moderator
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70 lb/in is what I was using on my Mk III racer. It might also be worth contacting the Midas owners too. I believe they used double rate springs. 120/70 lb/in comes to mind but my memory is not what it was.
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