Roadkill's 1958 Cadillac - PROJECT THREAD

[Andy]

Dude, save yourself the aggro and just go to a super market and get them.

They should take the standard watch battery cell, and I know I would rather buy one from a shop where I can take it back than the aggro of eBay. So many of these little Chinese batteries are duds as well.

[Cunning Plan]

Cunning Plan demands progress!

[Titsy]

Out of interest, any chance of a top down photo of the heads showing the inlet tracts?

[Roadkill]

Quoting: Andy

go to a super market and get them

I did, typically, they'd sold out.  

Quoting: Titsy

Out of interest, any chance of a top down photo of the heads showing the inlet tracts?

I'll post some later.

Quoting: Cunning Plan

Cunning Plan demands progress!

Well, there is some . . . .

[Titsy]

No go on the welding, but he knows a guy in Brackley and is going to get me contact details.

[Titsy]

I have a stack of LR44 batteries here at work if that's what your after. we ordered a pack for calipers and they sent a box by mistake...

[Roadkill]

No, it's the D357 / 303's . . . I've tried a LR44 and no go.

EDIT - Here ya' go.

This is what I've got so far . . . I'm speaking to the workshop, shortly.

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[Roadkill]

Finally !

A worthy update . . . if only to say that the first attempt at a valley cover wasn't 100% correct.  

It's pretty damn close, though, so second attempt should be spot-on !!!

It all lines up front-to-back but I'm going to increase the high of the ports 0.5mm top and bottom and increase the width between the bends by 1mm (or 2mm if I decide not to use a second set of gaskets).

That *should* do it.  

Pictures :

No plate

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Plate

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A couple showing the plate nicely lined up . . .

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http://s30.photobucket.com/user/Roadkill-Auto/media/Project%20-%20CADILLAC/IMAG1018_zps0d3c329d.jpg.html\" target=\"_blank\" rel=\"nofollow\">

The main issue . . distance between the bends just isn't *quite* enough.

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[Jo]

Looking good

[Cunning Plan]

Quoting: Roadkill

No plate

Looks very good to me, although what is the benefit of having the cover plate? Does it need one?

[Andy]

Keeps the oil in

[Incursus]

[Cunning Plan]

Ah I didn't realise, I thought they were sealed push-rod tubes like on VW Flat-4 Aircooled engines.

[Roadkill]

A lot of early Cadillac (and Pontiac) motors had manifolds that didn't cover the valley (like your standard Chevy) so needed a "valley pan" to cover the top of the motor.  (These manifolds kept the air cooler, by separating it away from the motor - apparently).

The later, big block, Cadillac motors DID have a manifold that covered the valley, but the manifolds were so low (to fit under the Eldorado hoods) that they used a tub gasket underneath to help insulate the manifold from the heat produce by the motor.

The manifold I'm intending to create is more like the early versions so the "old skool" valley pan is essential.

[Cunning Plan]

[Roadkill]

Evolution of a intake manifold design all on one picture !



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Just when I thought I had the concept sorted, I ran the carb spacing by Clive at Stromberg and he pointed out that the side-by-side spacing wouldn't be quite enough.

To maintain the angles I want meant re-designing the plenums which actually worked out better all round - smaller plenums, bigger gap and 10mm more hood clearance*



* <-- For a later mini project . . .

[Roadkill]

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[Roadkill]

Slow but steady progress . . . it's the waiting game, now.

The plenums and new cover plate have been issued to the workshop so I'm waiting for a quiet period to get them made.

At the same time I'm waiting for pay day so I can order some 5mm ally plate for the plenum lids and some 8mm ally plate for the intake flanges.

Then there's the tube I need to order - shown in the sketch above.

[Roadkill]

Quoting: Roadkill

The plenums and new cover plate have been issued to the workshop so I'm waiting for a quiet period to get them made.

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Plenum tubs looks great . . . they even linished them . . . which I didn't really want but can work with.

All the tubes are with Mr Dibley at the moment so as soon as I get them back I can start getting some bits TiG'ed together . . .

The "Revision B" of the cover plate is, dimensionally, spot-on, but this time they "over-bent" it . . . meaning that I have to try and bend it back a couple of degrees . . . . REALLY frustrating as, if it doesn't bend back, it'll have to be made AGAIN !

[FUBAR]

Looking good

[Andy]

Sorry Dean, had a really busy week so didn't even get a chance to look at them. Will try and get them finished this week, at the moment they're all cut, just waiting to trim them and turn the diameter down.

[Cunning Plan]

[Roadkill]

Quoting: Andy

Sorry Dean, had a really busy week so didn't even get a chance to look at them. Will try and get them finished this week, at the moment they're all cut, just waiting to trim them and turn the diameter down.

No worries, it wasn't a prod, honest . . I've waited weeks for the plenums so I'm not gonna start hassling you after a few days.  

[Roadkill]

I'll need to practice forming the square port ends on some of the off-cuts before risking f**king up your efforts !!!

Looking forward to getting it all back . . . especially as I've heard that our workshop will be "quiet" from now up until Christmas . . . .

[Andy]

Completed the other part as well now, so I can either post them or collect / drop them off?