1972 Twin Cam - Nut & Bolt Rebuild - LotusTalk - The Lotus Cars Community
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post #1 of 112 (permalink) Old 05-05-2013, 11:30 AM Thread Starter
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1972 Twin Cam - Nut & Bolt Rebuild

Finally got my hands on a reasonable condition Type 74 a few months back. It only took me 40 years!

Since I got it, it's been stripped down to nothing and I'm currently rebuilding.

I want to use this as a personal way of tracking progress (and to look back at) but hopefully you can enjoy it too.

Great forum!

Jack
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Last edited by pto; 05-05-2013 at 11:50 AM.
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post #2 of 112 (permalink) Old 05-05-2013, 11:52 AM Thread Starter
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05/05/2013 20:50
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post #3 of 112 (permalink) Old 05-05-2013, 11:54 AM Thread Starter
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05/05/2013 20:51
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post #4 of 112 (permalink) Old 05-05-2013, 11:57 AM Thread Starter
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05/05/2013 20:53

And work now starts - first cleaning up the chassis and repairing a previous bodge up at the front.
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post #5 of 112 (permalink) Old 05-05-2013, 01:28 PM
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Hey PTO,

It looks like you have a pretty nice example to start with. I especially like the Dellorto carbs! Nice that you can weld to take care of that frame.

Are you planning any mods or are you going to keep it pretty stock?

Good luck!!!
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post #7 of 112 (permalink) Old 05-05-2013, 09:08 PM
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Looks like you're going after it proper. Are you planning on a full restoration?
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post #8 of 112 (permalink) Old 05-06-2013, 06:17 AM
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Good luck on your rebuild! I know you will do a fantastic job, please keep us updated! I love how yours has the delloroto carbs! Can't wait to see it finished!

Good luck once again,
Chris
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post #9 of 112 (permalink) Old 05-06-2013, 03:57 PM
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Quote:
If working on the engine, get this:

Amazon.com: Lotus Twin-Cam Engine: A comprehensive guide to the design, development, restoration and maintenance of the Lotus-Ford twin-cam engine (9781855209688): Miles Wilkins: Books
GLB is right - Miles Wilkins is the man. I talked to him when dealing with my T/C rebuild and he was a wealth of information. Is he still among the living?

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post #10 of 112 (permalink) Old 05-12-2013, 09:50 AM Thread Starter
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Hi there,

It's been a busy week, but got some updates...
First, BDA - keeping the car stock, just a change of colour (Black)
EuropaFan - yep, full restoration

Got another set of pics, will upload next.
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post #11 of 112 (permalink) Old 05-12-2013, 09:53 AM Thread Starter
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12 May 2013
Lots of painting - chassis, suspension, etc...
And fitted some depressingly expensive transfer pipes
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post #12 of 112 (permalink) Old 05-12-2013, 09:55 AM Thread Starter
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#2 from 12 May 2013
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post #13 of 112 (permalink) Old 05-12-2013, 10:33 AM
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Looks really nice! It looks like you've done some nice work there! Keep those pictures coming!
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post #14 of 112 (permalink) Old 05-20-2013, 09:39 AM Thread Starter
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20 May 2013:

Over the past week I have been rebuilding the front suspension, having completed work on the bare chassis and on various front suspension parts (Cleaning and painting of wishbones, springs, etc...)

I have used new top ball joints, fresh trunion kits and new wheel bearings. This is matched with freshly rebuilt capilers using new kits and brakes. New self-locking nuts used throughout.

Brake lines were made using reasonable cost piping from a local car shop and and flaring kit that I bought. This works out a very cheap way to re-do your lines. You also get the benefit that they are made to measure. I also used new flexible brake lines.

Over the next week I hope to tackle gear linkage and begin on the engine and gearbox.

Jack
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post #15 of 112 (permalink) Old 05-20-2013, 09:40 AM Thread Starter
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20 May 2013 - Batch 2

Just as a note, the hardest job so far was removing the passenger side door hinge pin. A complete nightmare!
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post #16 of 112 (permalink) Old 05-20-2013, 01:07 PM
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Europa door hinges are notoriously difficult. Good luck.
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post #17 of 112 (permalink) Old 05-20-2013, 08:22 PM
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As a previous owner of this car (and no it wasn't me who bodged the chassis!) can I just say what a joy it is to see it being rebuilt so well.

I'll be following closely.
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post #18 of 112 (permalink) Old 05-27-2013, 09:48 AM Thread Starter
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Engine

Hi again,

This week has been engine week. It's currently laying in the garage in bits, ready for rebuild over the next couple of weeks.

As for the engine, externally it looks worse for the wear. It leaked oil for fun from most places it could leak, and the core plugs also leaked water.

Internally though, exceptional condition. It hasn't been rebored in the past, nor does it need doing now, and the shells are in near excellent condition. A nice surprise! This isn't an excuse to get out of replacing them though. ALL shells are being replaced, as are the complete piston ring set because one was snapped.

The water pump is going to go through a rebuild using a kit I've purchased off eBay. Most of the bits I've got in fact have been off eBay, and sold for the standard X-Flow engine. Mightly cheaper than putting the word Lotus in front.

To give you an idea, I paid about £14 for the Vandervell shells. From a Lotus dealer these are around £80 or more. Crazy.

The piston rings were highly upsetting. I found it hard to find an equivalent, and I have since learned that different brands of pistons were used. In the end I bailed and used Paul Matty's advice to get the right ones. Cost me £120 mind you!

For what it is worth, I now know the equivalents for most of the parts on the engine (clutch, shells, piston rings, etc) so if someone needs some advice, feel free to PM me.

Jack
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post #19 of 112 (permalink) Old 05-27-2013, 09:49 AM Thread Starter
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Engine #1 27 May 2013
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post #20 of 112 (permalink) Old 05-27-2013, 09:50 AM Thread Starter
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Engine #2
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