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Latest Threads
Sierra Indicator stalk
Forum: Technical
Last Post: jzeller
04-20-2019, 11:38 PM
» Replies: 0
» Views: 199
Tonneau cover
Forum: Technical
Last Post: jzeller
04-15-2019, 02:33 PM
» Replies: 0
» Views: 209
Elise toweye
Forum: General Discussion
Last Post: JohnSourcer
09-14-2018, 11:32 AM
» Replies: 0
» Views: 1,726
Mechanic for Elise
Forum: General Discussion
Last Post: JohnSourcer
09-11-2018, 08:42 AM
» Replies: 0
» Views: 1,801
Big test for the rollcage
Forum: Racing
Last Post: andredp
11-06-2017, 07:09 AM
» Replies: 19
» Views: 25,027
Carbon Fiber Birkin hood
Forum: Technical
Last Post: 082444Bow
11-01-2017, 11:08 AM
» Replies: 1
» Views: 3,050
Lotus Twincam motor
Forum: Technical
Last Post: Stuart Donkin
10-23-2017, 03:34 PM
» Replies: 2
» Views: 4,590
South African Designer
Forum: Classic Lotus
Last Post: Richard Clarke
10-23-2017, 08:58 AM
» Replies: 5
» Views: 8,515
Ford Kent 16000 Thermosta...
Forum: General Discussion
Last Post: jzeller
10-22-2017, 08:12 PM
» Replies: 2
» Views: 6,780
clutch cable
Forum: Technical
Last Post: 082444Bow
09-11-2017, 07:48 AM
» Replies: 0
» Views: 2,129

 
  Sierra Indicator stalk
Posted by: jzeller - 04-20-2019, 11:38 PM - Forum: Technical - No Replies

Hi,
I am looking for a donor Fors Sierra indicator stalk. Anyone got one they want to sell?

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  Tonneau cover
Posted by: jzeller - 04-15-2019, 02:33 PM - Forum: Technical - No Replies

Hi,
Can anyone recommend a good maker of the tonneau cover for my 7?

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  Elise toweye
Posted by: JohnSourcer - 09-14-2018, 11:32 AM - Forum: General Discussion - No Replies

Anyone up on the Rand have one that I can borrow for a few hours? I'll drive to fetch and bring back.

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  Mechanic for Elise
Posted by: JohnSourcer - 09-11-2018, 08:42 AM - Forum: General Discussion - No Replies

Hey All,

Can anyone recommend a mechanic / shop to fix an issue on my 2010 Elise? I used to use Gareth Taylor who has sadly left these shores.

Thanks
Mike

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  Carbon Fiber Birkin hood
Posted by: Richard Clarke - 10-23-2017, 09:08 AM - Forum: Technical - Replies (1)

I have a carbon fiber (new) hood for the Birkin for sale - any interest?  Also a new in the box imported aluminium head for the cross-flow 1600 Ford Kent - also for sale.  Both are obviously rare and unusual bits, the head was imported from North America.

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  clutch cable
Posted by: 082444Bow - 09-11-2017, 07:48 AM - Forum: Technical - No Replies

I recently purchased a Birkin with the 1600 Essex motor. However the clutch cable has gone and needs replacement. Where in the JHB area would I locate one.

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  Lotus Twincam Water Pump
Posted by: buckssa - 09-06-2017, 02:07 PM - Forum: Technical - No Replies

Im busy building an original lotus twin cam motor and during strip down noticed that the front cover which houses the water pump bearing assembly had worn and the bearing was sloppy in the housing. I bored it out and sleeved it with a bronze insert. 

A new water pump assembly, impeller, bearing and seat was purchased from Burton and straight away i noticed the bearing shaft lengths were shorter than the one i removed. Never the less i assembly the engine and whilst pressing the pulley hub on the shaft noticed that in order for the pulley to line up ,only a portion of the hub is on the shaft. 

After bolting on the pulley i have picked up a rocking on the pulley. All bearings have play but Im not sure this is acceptable. 

Has anyone else experienced this in the past? 

I can strip down the motor, but its a lot of work to complete, especially if i dont have to.



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  Ford Kent 16000 Thermostat housing
Posted by: jzeller - 09-03-2017, 11:50 AM - Forum: General Discussion - Replies (2)

Hi,

Anyone know where I can get a Ford Kent 1600 Crossflow Thermostat housing? Anyone have one lying around?

Regards,
John

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  Ford Zetec
Posted by: Crockett14 - 07-24-2017, 02:57 PM - Forum: Technical - No Replies

Good Day,

Can you please help me i am looking for Ford Zetec flywheel bolts can you please help me in the right direction or if you have some let me know thank you.

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  Lotus Twincam motor
Posted by: Stuart Donkin - 07-23-2017, 10:07 AM - Forum: Technical - Replies (2)

I own a Birkin with a 1760cc big valve tall block original Lotus Twincam motor. 85 mm pistons.
My cylinder head has been repeatedly skimmed by previous owners and the last skimming actually removed part of the outer edge of 2 valve seat inserts.
My head measures 4.462 in high. Factory new spec is 4.598 which means .136 in has been removed. I have read of heads still working at 4.520 in.
My head has a small crack through to the water jacket on the small flat area inside the combustion chamber immediately adjacent the bowl area in cylinder #2.
This can be welded up but the head will then need further skimming.
I also have several very minor cracks running from spark plug hole to the outer edge of the valve seat insert. They appear very shallow and compression was still good.
I am hoping that there is an expert out there with extensive knowledge of the twin cam head who can assist with the following.
1. My current head gasket is .051 in thick and a .065 in replacement is available. This should compensate for the additional skimming. ( Hopefully minimal )
2. Is there a risk of the cylinder head combustion flat area failing during use as a result of having the thickness reduced by .136 in (3.45mm) which is excessive?
3. As the bowl area is not directly affected by skimming I am not too concerned about this area.
4. Should the valve seat become a problem protruding beyond the head face is it feasible to install shallower seats and obviously compensate with overall valve/shim length?
5. Clearance of valves to the pockets in the pistons is a concern but the lower seat insert would solve that I guess.
6. My cam shafts have full vernier sprockets so timing will be carefully done allowing for the head height affecting chain length.

All comments and assistance would be greatly appreciated. Smile Smile Smile
Retaining this classic motor in my very special original Birkin is very important to me.
I am aware that replacement heads are available from Burton and other manufacturers but these are way outside my budget.
Finding a Twink head sitting on a shelf or residing in a scrap yard would be unbelievable.

Stuart Donkin

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