Search found 953 matches

by rfs1957
Sun Mar 03, 2013 2:10 pm
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

Sorry, but it is not the movement of the pistons that delivers the bias. Movement has nothing to do with it and is a misleading concept. There is no pressure in either front or rear 3.8 brakes at all until both front and rear cylinders have "pumped-up" and got the pads hard against the discs, beyond...
by rfs1957
Sat Mar 02, 2013 10:02 am
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

My apologies, but this is not correct. Whilst the lower cylinder is indeed for the front brakes, its shorter piston is simply to give it a longer travel and has NO EFFECT WHATSOEVER ON BRAKING FORCE. Moving "more fluid when the brakes are applied" is a nonsense.
by rfs1957
Fri Jan 25, 2013 10:50 pm
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

The Front piston is shorter , not longer, together with a different rear spring-seat and a longer shuttle-valve stem (I believe) so that the overall length of the ensemble is the same. The shorter piston enables it to go further down the bore (3/8" further) before it locks up solid. I'll draw everyt...
by rfs1957
Thu Jan 24, 2013 10:19 pm
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

Clive,

Not sure I know how to get beyond the screen you've posted, and can't see the components on your car page. To within 40 thou (that's 1mm to us French) the bar is symmetrical on my car, tho' if mine turns out to be a freak I'm open to other propositions.

Rory
by rfs1957
Tue Jan 22, 2013 9:59 pm
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

Hi Barrie,

That's very generous of you - any idea on time-scale ?

Rory
by rfs1957
Tue Jan 22, 2013 1:00 pm
Forum: Series 1
Topic: Replacement Servo for Kelsey-Hayes on 3.8
Replies: 5
Views: 8589
France

Hi Jonathan, Just occurred to me that I may not have replied to this ? Yvan did this for me as a favour (an expensive favour !) and we didn't keep all the jigs and stuff afterwards, MAINLY because if I were to do it again I would go for the crutch/cradle/spacer plus U-bolts approach, in rather the s...
by rfs1957
Tue Jan 22, 2013 12:03 pm
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

Hi Peter, Thanks for the comment, I've tweaked the maths and the reasoning a bit since I first ran a draft past you a month or so ago, but the real clincher was being able to study and measure without the RH cheek obscuring the mechanism. I had an allergic reaction to the bad-science and obfuscation...
by rfs1957
Mon Jan 21, 2013 9:30 pm
Forum: Series 1
Topic: How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)
Replies: 32
Views: 20123
France

How 3.8 Brake Master Cylinders Work (Without the Smoke and Mirrors)

OVERVIEW For those that don't want to wade through this rather turgid stuff, and cut to the chase, here are the facts, drawn together after the various exchanges and study of parts that various Forum members were kind enough to supply or measure themselves. If you don't agree with these, please rea...
by rfs1957
Mon Dec 10, 2012 2:10 pm
Forum: Technical
Topic: "Rubber" Battery Leak ?
Replies: 0
Views: 1248
France

"Rubber" Battery Leak ?

Has anyone had any issues with this type of "period" battery ? http://i1111.photobucket.com/albums/h475/rfs1957/DSC02627.jpg http://i1111.photobucket.com/albums/h475/rfs1957/DSC02628bis.jpg Bought from SC or SNG some time 2007/2008 and no electrical issues, but has developed a big leak from the edge...
by rfs1957
Mon Dec 10, 2012 1:58 pm
Forum: Technical
Topic: Shock-absorber and spring change-over
Replies: 21
Views: 7813
France

Springs (and Barcelona)

Maybe we should close this thread with "Congratulations" to everyone involved ? It's a good test of a Forum when disagreements don't become acrimonious. This will just go down as a subject that we don't all agree about, and I'm happy to acknowlege a) that I could get adventurous/careless under the a...
by rfs1957
Thu Nov 29, 2012 9:05 am
Forum: Technical
Topic: Shock-absorber and spring change-over
Replies: 21
Views: 7813
France

It would be discouraging if recent members with low posting numbers asking apparently naive questions on the E-Type forum were automatically assumed to be daft. They might potentially be mechanical engineers with university qualifications and 30+ years of self-employed hands-on power-sports engineer...
by rfs1957
Tue Nov 20, 2012 2:16 pm
Forum: Series 1
Topic: Different types of MX-5 seat ?
Replies: 10
Views: 12973
France

Thanks David, that's much clearer ; are both the lower pairs the type with removable-headrests, or just the lower RH set ? I'm interested in the comfort and the reclined position, the head-rest bit is another debate and I want them to be removable.
by rfs1957
Tue Nov 20, 2012 8:40 am
Forum: Series 1
Topic: Different types of MX-5 seat ?
Replies: 10
Views: 12973
France

Different types of MX-5 seat ?

Can anyone throw any light on the suitability of various models of MX-5 seats ? The most useful accounts provided here by John Scott seem to relate to a "separate-headrest" model, I think he calls this a Mk1 car. I'm going to do the MX-5 conversion to my Series 1, and am waiting to take delivery of ...
by rfs1957
Sat Nov 17, 2012 9:34 pm
Forum: Technical
Topic: Un-silenced Rear Exhaust
Replies: 12
Views: 8705
France

I too tried replacing the main centre silencers with straight-through pipes, keeping the original BSA C15-type resonators that I actually really like. I found that the noise was excessive and frankly anti-social, and detracted from my pleasure in driving the car - that from someone who thinks Contis...
by rfs1957
Fri Nov 16, 2012 10:19 pm
Forum: Technical
Topic: Shock-absorber and spring change-over
Replies: 21
Views: 7813
France

More people probably have access to a hydraulic press than a spring compressor, and most of the latter are anyway aimed at springs of far larger diameter than the Jag's. http://i1111.photobucket.com/albums/h475/rfs1957/DSC02186.jpg This method is fast, controllable, and 100% safe - the strap is just...
by rfs1957
Fri Nov 16, 2012 8:24 am
Forum: General
Topic: Stick on number plate
Replies: 6
Views: 2904
France

Works perfectly for all adhesive decals ; just requires dexterity to chase all the bubbles out, but stops larger surfaces 'grabbing' and becoming prematurely stuck. Get a squeegee with a straight edge, a credit-card is quite good for small surfaces.
by rfs1957
Thu Nov 15, 2012 1:26 pm
Forum: Series 1
Topic: Reassembly; recommended torque settings
Replies: 4
Views: 5144
France

Hi David, I too struggled with this recently. Are these really the best links we have ? http://dl.dropbox.com/u/8496016/Torque%20settings.doc This gives a Word document, complete with a table and graphs. If you know the bolt size, the grade of steel it's made from, can decide whether it's adequately...
by rfs1957
Mon Nov 12, 2012 11:36 am
Forum: Technical
Topic: Front wheel bearing End-Float ?
Replies: 5
Views: 4486
France

Front wheel bearing End-Float ?

Can anyone throw any light on an elegant and repeatable method of obtaining the correct end-float on the front wheel taper-roller races ? The required movement is .003 to .005" (.07 to .13mm) according to the books. From experience, measuring the end-float here with a dial-guage (d.t.i.) is a fairly...
by rfs1957
Sat Oct 13, 2012 1:47 pm
Forum: Technical
Topic: Shock-absorber and spring change-over
Replies: 21
Views: 7813
France

Thanks Christopher, your concern much appreciated.

Can somebody tell me what the compressor travel needs to be ?

ie free-length as against extended-length of the spring ?
by rfs1957
Sat Oct 13, 2012 10:22 am
Forum: Technical
Topic: Shock-absorber and spring change-over
Replies: 21
Views: 7813
France

Thanks Marek,

No brake discs but plenty of steel sections, a MIG, and a press, so no excuses !

Rory

PS : Anon ? Hadn't realised, just added my name to the signature.