Search found 149 matches

by JimCrawford
Sat Feb 19, 2022 4:39 pm
Forum: THE AIRCRAFT
Topic: Now and then…
Replies: 3
Views: 12920

Re: Now and then…

Is there a reason for the exhaust extended below and behind the leading edge? Perhaps to avoid any chance of fumes in the cockpit?

Jim
by JimCrawford
Fri Feb 18, 2022 12:23 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 24
Views: 33563

Re: LeBurg ignition installation

Although my engine is running quite happily I shall remake the ignition leads as the terminations and boots I've used occupy space a little inconveniently. In particular the leads from the coils to the lower plugs cross over beneath the engine just where I need access to the Curtis Valve I've instal...
by JimCrawford
Tue Feb 15, 2022 6:55 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: Wing Bolts
Replies: 4
Views: 3066

Re: Wing Bolts

Hi Ross, There is an LAA mandatory to replace or crack test the wing bolts. Bolts of that length are like rocking horse ordure (they are imperial 5/16 if I remember correctly - which is very close to 8mm, hence any metric confusion). Because of the difficulty of getting this length Nipper aircraft h...
by JimCrawford
Sun Feb 06, 2022 10:07 am
Forum: ENGINEERING AND MAINTENANCE
Topic: Rudder Pedal Bungees
Replies: 3
Views: 2812

Re: Rudder Pedal Bungees

Any sailing supply shop should be able to sell bungee by the metre, choose the diameter you want, cut to length and make up your own ends.

Jim
by JimCrawford
Sat Feb 05, 2022 10:22 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 24
Views: 33563

Re: LeBurg ignition installation

Yes Paul, the hangar behind is the old GSA hangar, now used for renting out at humongous costs by Bicester Heritage for events. I peeked in once when it was being prepared for a wedding and it had a full size old style merry go round down one end and catering for ~ 150 in the main part, plus a bands...
by JimCrawford
Thu Feb 03, 2022 7:41 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: LeBurg ignition installation
Replies: 24
Views: 33563

Re: LeBurg ignition installation

At last !!! After much midnight oil on the mechanical installation: Quite a lot of work to get the Leburg system sparking: And a nightmare sorting out the fuel system - including removing a leaking Curtis drain valve that appears to have had locktite as a seal :shock: The first run of the modified V...
by JimCrawford
Thu Jan 27, 2022 5:26 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: mystery magneto
Replies: 1
Views: 2048

mystery magneto

Hi all,

In a box of goodies which came with some VW engines I received recently came this dual mag.
Anybody know anything about it, what it was used for etc? It's probably not much good for a Nipper as it would stick through the firewall quite a bit.

Jim
dualmag01.jpg
dualmag01.jpg (135.19 KiB) Viewed 2048 times

dualmag02.jpg
dualmag02.jpg (376.87 KiB) Viewed 2048 times
by JimCrawford
Thu Jan 27, 2022 2:03 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: SEV Fuel Pump, service or replace
Replies: 16
Views: 12966

Re: SEV Fuel Pump, service or replace

That looks just the job and it's cheaper than the rebuild kits. I may just invest in one for the spares box.
A combination of rotating the top and replacing the brass fittings with angled ones as necessary would surely make the fuel pipery work fine.

Jim
by JimCrawford
Thu Jan 27, 2022 10:07 am
Forum: ENGINEERING AND MAINTENANCE
Topic: SEV Fuel Pump, service or replace
Replies: 16
Views: 12966

Re: SEV Fuel Pump, service or replace

Some progress on the SEV pump. I emailed a photo of the pump to VW Heritage and they sent me what they thought would be the service kit, unfortunately it turned out to be completely unsuitable. This is probably because they were working on the age of the engine and the assumption it was in a vehicle...
by JimCrawford
Sun Jan 09, 2022 6:57 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: VW exhaust scheme
Replies: 7
Views: 12962

Re: VW exhaust scheme

Good Evening Dave, Thanks for that picture which is surely worth a thousand words! I have concluded that the top fixings should be flush with the top edge of the firewall and that the Nipper drawing I have is in error. It would look rather strange for the top of the cowling to stick up 10mm from the...
by JimCrawford
Thu Jan 06, 2022 9:54 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: VW exhaust scheme
Replies: 7
Views: 12962

Re: VW exhaust scheme

Thanks David, that looks like a good starting point to copy. I like the hot air pickup inside the cowling. I have a secondary problem with my existing set in that the port forward lower spark plug points directly at the port fwd exhaust pipe and the right angle plug cap and ignition cable are very c...
by JimCrawford
Thu Jan 06, 2022 3:28 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: VW exhaust scheme
Replies: 7
Views: 12962

VW exhaust scheme

Has anybody got any photos of their exhaust installation - cowlings off - that they could share? My Nipper has the 4 downward open pipes arrangement but they are crudely made of mild steel and won't last for long. I'd like to fit a system made in stainless and a silenced arrangement wouldn't go amis...
by JimCrawford
Thu Jan 06, 2022 3:18 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: Nipper firewall
Replies: 6
Views: 4784

Re: Nipper firewall

I've come up against a head-scratching moment in my firewall replacement, best illustrated by the attached pictures: 1. The clip from a Mk3 drawing shows all the attachment points for the cowling to be protruding from the firewall, this would result in the aft lip of the top cowling sitting with a g...
by JimCrawford
Fri Nov 19, 2021 5:00 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: SEV Fuel Pump, service or replace
Replies: 16
Views: 12966

Re: SEV Fuel Pump, service or replace

The only information I have is that one of the answers to my enquiries was that it was used on a post war Morris van.
by JimCrawford
Tue Nov 16, 2021 4:42 pm
Forum: ENGINEERING AND MAINTENANCE
Topic: SEV Fuel Pump, service or replace
Replies: 16
Views: 12966

Re: SEV Fuel Pump, service or replace

I think you'll find that getting a service kit for that carburettor will be challenging. I've tried many specialists, including the manufacturer, and the usual response I've had was 'haven't seen one of them for years!'. By good fortune I was wandering around the flea market on the last day of the r...

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