[Which shocks]

Hi,

 

One single word: Spax. Set to 30-50% up front and 25 % at the rear. 30 years of good service.

 

Badfrog

[Carb discrepancy]

Paul,

 

Could you have a misaligned buttefly with wrong sealing of the venturi?

 

Badfrog

[Electronic Ignition and Distributor]

Paul,

 

This is interesting. What camshaft do you run and what are these 45 in terms of inner piece (exchangeable venturi)?

What is the engine displacement?

 

Cheers,

 

Badfrog

[TR4A - Positive or Negative earth?]

Thanks Peter, but what is a Robinson?

 

Badfrog

[TR4A - Positive or Negative earth?]

Hi all,

 

Having a '63 TR4, the car was positive earth. Some 20-30 years ago I was enticed into getting negative earthing, as the car wa equipped with a dynamo while I wanted an alternator for long range all-seasons driving.

I turned the battery , the ammmeter and coil wires around, hit the key and kept driving ever since. Regulators (big one and small dashboard unit followed silently).

Years later, I installed NipponDenso units for alternator and starter motor, and the driving kept on, no worries.

 

I have the dates for factory changes somewhere if required.

 

Badfrog

 

PS: Phew, took me some time, even at 400%, but I did it. Could be typos.

[Useless So Called Upgrade Parts ?]

Eared-spinners never raised a cop's eyebrow overhere.

Well, a lot of them officers have taken to pluck their eyebrows lately what with the gender controversy here in France, so it's hard to tell after all.

 

Badfrog

[Oil Temperature gauge]

Christian,

 

What is "mixture"?

 

Badfrog

[Steel whels on short studs]

JF,

 

In answer to your question herewith my drawing including the result...

 

Raymond

Thanks Raymond, will convey.

 

Badfrog

[Steel whels on short studs]

Thanks for all the answers. We now have a precise understanding on what and how.

I will report to the TCF.

 

Cheers,

 

Badfrog

[Steel whels on short studs]

Bonjour Jean Francois.

 

In 2006 I had the same idea! From that moment on, and 12000 mls further, no problems whatsoever...

 

Raymond

Hi Raymond,

 

Interesting. Can you elaborate on what you did exactly?

 

Badfrog

[tyres and rims]

Hi,

 

I use 165 on 5.5J with great success. I once used 165 on a pair of 6J rims at the rear. it looked weird and worked the same: easy skid on har corners.

The true problem is what do you do when you dream of 6J's and want them no matter what.

 

Badfrog

[Steel whels on short studs]

Hi all,

 

One of the TCF mad tweakers came up with a way to bolt steel wheels on the sawed off studs associated with wire wheels. I join the pix.

Can you please give your opinion about engineering soundness and safety?

 

Badfrog

 

 

 

[TR4 Racing axles]

Thanks Christian,

 

I have it figured now.

 

Badfrog

[tyres and rims]

5J is good, 5.5J very good. 4.5J too small (balloon effect).

The rule is that the tyre wall should be straignt and vertical.

 

Badfrog

[TR4 Racing axles]

Well, seems a wide open question then. Could it be a problem of harmonics linked to the length/diameter ratio?

 

Badffrog

[TR4 Racing axles]

Hi all,

 

I've heard repeatedly that live axles from US 4A's were the sturdiest, but could someone tell me why?

 

Badfrog

[Engine Oil Little TR Content]

I'd go along with Alec: 20-50W was the "sport oil" reference. A good example was the Valvoline "Racing". Expensive but so chic in the boot. Then, Castrol R 40W was flashy, too.

For the average banger driver, the kick was 40 or 50W in summer and 30W in the winter. A sure way to go as it was the recommendation for sporty Austins in the '30s. You had to account for the distance between walls and rings ...

 

Badfrog, but whazzat smell?

[Tr3 engine vent]

Hi,

 

Thanks for the enlightment.

 

I'd like to mention something that happened with my 122S Volvo. I built a breather tube "to the road" once and made it a trifle too long. This elicited a sort of "whistle" effect in the tube and the draft under the car aspirated all the engine oil in 5 minutes. I saw the oil pressure gauge falter and killed the engine immediately. Checking the dipstick: engine was empty.

 

So beware of dimensions.

 

Badfrog

[Tr3 engine vent]

Hi all,

 

I tried to understand the picture without success. Could you post a pic of the tube "in situ", along the engine?

 

Many thanks,

 

Badfrog

[Ethanol in Petrol]

Hi,

 

If you don't mind the biochemist speaking, the keyword here is thermal oxidation.

Anytime you heat ethanol in the presence of air (oxygen 21%) what you get is acetic acid.

You can pick up from there about metals, alloys and synthetic polymers.

And of course, whatever the brand, continental fuels are all 5% ethanol except the infamous E85-10 which is 10%.

 

Badfrog

[Adjusting Tappets]

My personal rule for Tappet setting:

 

 

 

 

Badfrog

[crash pad - ebay]

I knew of a good crash pad down by Harrison and Mississipi in downtown San Francisco around '72.

 

Badfrog, Joe Cool, then ....

[Panel fitting]

3/16 or 5 mm. Good.

Thanks.

 

Badfrog

[Panel fitting]

Hi all,

 

Is there a theoretical value for the space between panels and/or doors in TR4?

Or is it whatever looks good and does not rub?

 

JFS

 

 

[Tyres for TR4A]

IMO, nothing beats the Vredestein classic 86H.

I must say I don't like the sissy look of whitewalls, but that's just me.

 

Badfrog