Light Aircraft Association

Rob,

Whilst I would be most interested in whatever you discover, please don't put yourself to too much trouble rummaging around in the shed!

Thank you too for your additional comments on the projected nose issue and the benefits of Indium tips - all very useful grist to my mill.

John.

Thanks Rob, I never knew that there were such important differences between the ways manufacturers produce their plug threads.

Out of interest, are any of the plugs in your various heads the 'projected nose' type?

Many thanks, G. Dawes, for your very sound and helpful advice. Having checked the heads, I find that a long reach plug in the original VW plug hole just reaches the end of the hole with no threads on either plug or hole exposed. This perhaps explains why I have seen mention on the Forum of people us...

Gary, Very many thanks indeed for responding. You make a very sound point about build up on the plug threads which, I confess, hadn't occurred to me. It's very helpful also to know too that short reach plugs work perfectly well in your engine. My theorising is all well and good but you can't beat he...

The previous owner of my VW 1834 engine with Lucas SR4 mags ran NGK BP6HS plugs which are 12.7 mm thread, i.e. short reach, but with a projected nose. I recall previous mention on the Forum of people using B6ES which are 19 mm thread, i.e. longer reach, but without the projected nose. Out of curiosi...

Many thanks, Bertrand.
I'm glad you are pleased with it and delighted that it has found a good home.
Happy flying,
John.

Thanks for that confirmation, exraf. I'm not a motorbike man myself but it's perfectly obvious to me now from the mounting and the cut down lever that the mastercylinders could only have originated from a bike - lateral thinking is not my strongest suit! Certainly, the Honda repair kits I bought are...

Many thanks indeed for the pointer, Steve. It answers the question at a stroke.

There is a great deal of readily available information out there somewhere - it's just a case of knowing, or being guided, where to find it!

John.

Just to say that, thanks to your pointing me in his direction, Mike Hutchinson resolved all my problems in no time at all. Unfortunately, the US-made altimeter was so old that it was impossible to locate the necessary spares to convert it from "Hg to milibars but Mike was able to supply an alternati...

Foggy, you're absolutely right, there is nothing specified from the firewall forward so maybe good aero sense does indeed apply. I shall have a word with my inspector when he next calls. In between times, I'll weigh the pipes that came off; they are stainless but seem to me to be quite thick walled....

As always, thank you all very much for your varied and very helpful suggestions. I have located a source of 'J' pipes (I didn't know they existed!) which would seem to be an excellent starting point for fabricating a new design. Also, Dave Dale thinks he has located the publication on silencing. I a...

Hi Bertrand, I have a Garmin 95XL and you are most welcome to it. It came with the Evans VP-1 I bought and am currently rebuilding. Although I have never used it, it appeared to boot up ok when I last tried it. I have the handbook and I think the box too but I am not sure about the antenna. I do not...

Does anyone have a design, old photos maybe or suggestions for a quiet but efficient exhaust system for an Evans VP-1 with an 1834 VW? I am refurbishing an elderly aircraft which is currently fitted with very short (about 12") stainless steel open pipes which the previous owner admitted make a loud ...

Gents, Thank you so much for your suggestion. I spoke to Mike Hutchinson this morning and he was most helpful. I am about to pack the altimeter (and the ASI as well) and post them off to him. It will be great if I can use the original instruments and thereby help retain some of the character of a 70...

Has anyone got a serviceable 3 1/8" altimeter with a millibar sub-scale dating from the 1960s or 1970s that they are prepared to part with? I'm looking for something with a patina that matches the age of my other instruments. Alternatively, does anyone know of a specialist instrument refurbisher whe...