Hi Ian,
we have the metal tank, and it holds 83 liters. We just had it out to
replace rudder cables. I didn't put it on a scale, but just from
handling it, it seems very light. Anything fibreglass will probably be
heavier.
Cheers
Nils
On 09.08.2013 05:24, Ian Williams wrote:
Hi All,
Of interest the NZ CAA have put out an AD for those glass Dimona fuel
tanks of which ours has one. THe AD says that it is to be replaced
with a metal one at 3000 hrs or if on an inspection there are bits of
molten resin floating around in the bottom.
A company in Auckland who I have been associated with for many years,
manufacture fibreglass parts for an NZ aircraft manufacturer. They
also build other bits ... ie a fibreglass fuel tanks for the P40's
rebuilt in NZ ... amongst other things. Their quality has to be seen
to be believed.
Anway, getting to the point .... I am thinking about the idea of
using the original fibre tank I have to create a mould to make "new"
tanks using new modern resin which will not be affected by the
additives in Mogas. Also it can have the earthing screen (aluminium
net) moulded in.
Would there be any interest in this as an alternative to alloy ?? I
would need to organise an approval from NZ. If there are a few
required, it could be economically viable. I am happy to organise the
logistics necessary.
What has got me thinking about this is that the old resin tanks hold
just over 80L while the aluminium ones seem to be a bit less ... 65 or
70. I'm not 100 % sure but I think that is the case.
Ian Williams
*From:* [email protected] [mailto:[email protected]]
*On Behalf Of *Ian Mc Phee
*Sent:* Friday, 9 August 2013 10:10 a.m.
*To:* DOG LIST
*Subject:* [DOG mailing list] L2000 heads
For about past 400 hours I have checked tappet gap with.0.2mm and
never adjusted gaps but yesterday I tried 0.25mm feeler gauge and
noticed it would just fit in many of the gaps. Naturally I readjusted
them all back to 0.2mm
My question is in past I have always noticed gap closing up especially
exhaust but never seen all gaps opening up. The local VW man George
always says clacky tappets are happy tappets. Has anybody out there
got an idea what is happening? This engine runs very cool and oil
only just gets to 75degC (the min). It has reached the stage I am now
fully blocking off air to cooler to get temp up and am using 10W40! I
even bought new oil temp gauge and probe and still the same very low
temp, while pressure is always close to 4atm. It never needs a top up
in 50hrs.
Any thoughts out there.
The only failure in 500hr was a tappet cover cork had a crack and put
in new plugs at 500 has for something to do (Limbach 3 probe plug).
Limbach are great engines & I reckon the TBO should be upped to
1600hrs like L2400 or whynot 1200hrs like L1700 at a minimum. Come on
Limbach do your paperwork.
Ian Mcphee
