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HELP with Manifold ID please
Posted: Sun Jun 14, 2015 1:27 pm
by irlmin
While digging through the residue of a misspent youth I came across this manifold , memory says I replaced it with some manifold or other from Longman back in the day . anyway its over to the people with the knowledge
Re: HELP with Manifold ID please
Posted: Sun Jun 14, 2015 8:31 pm
by carbon
I don't recognise it, but looks like it should work very well. Nice touch with recess for o-rings.
Is it ported for inch & half carbs?
Re: HELP with Manifold ID please
Posted: Mon Jun 15, 2015 10:17 pm
by irlmin
Was looking around the loft today and came across a rose jointed linkage ( will get some photos later ) which if I remember correctly was from the same set-up , I know around that time I was using split Webers on the 1293 and perhaps it was those I fitted the Longman manifolds to .
G
Re: HELP with Manifold ID please
Posted: Tue Jun 16, 2015 4:17 am
by LarryLebel
The mounting flange is only good for HS2s.
Re: HELP with Manifold ID please
Posted: Tue Jun 16, 2015 4:37 am
by Spider
LarryLebel wrote:The mounting flange is only good for HS2s.
Or maybe H4's ?
Re: HELP with Manifold ID please
Posted: Sun Jun 21, 2015 10:46 am
by irlmin
Possibly H4s as I also found a set of H4s in the loft . does anyone know who manufactured the manifold in the pic ?
G
Re: HELP with Manifold ID please
Posted: Mon Jun 22, 2015 4:52 am
by Austin Costin
No idea who made the manifold (very nice BTW) but I am quite curious about your magic loft

Re: HELP with Manifold ID please
Posted: Mon Jun 22, 2015 8:01 am
by irlmin
Austin Costin wrote:No idea who made the manifold (very nice BTW) but I am quite curious about your magic loft

Spent many years rallying various minis back in the 'day ' and of course built up a few bits , some have remained in storage , some decent bits, lots of rubbish I am afraid as well .
G
Re: HELP with Manifold ID please
Posted: Thu Jun 25, 2015 8:54 am
by mk1
That is a very nice fabricated manifold.
My first thoughts were possibly an early Janspeed, but it doesn't look long enough. What is the angle on the pipes?
I will continue to hunt through the archives, but as they say. . . . don't hold your breath for a definitive answer.
M
Re: HELP with Manifold ID please
Posted: Sat Apr 04, 2020 12:08 pm
by irlmin
Just a quick update on this . I got the twin H4s out of the loft and indeed it looks like they were used with this manifold , perfect fit and evidence of 'O' rings on carb bodies . Carbs have WR 9869 stamped or punched on 'inlet' side of carb bodies does that mean anything ? better get reconditioning these while we are restricted due to current circumstances . G
Re: HELP with Manifold ID please
Posted: Wed Apr 08, 2020 9:15 pm
by smoky
Hi - first post on here and thought I could hop in on this thread as I've been sorting through my carbs and manifolds and found this - probably got it from a scrapyard in the 1970's or early 80's. Its 30 degree, brazed and looks similar to Janspeed/Downton steel manifolds that I've seen in the archive - any ideas or comments welcomed - thanks, David