mjc Posted April 2, 2011 Report Share Posted April 2, 2011 Does anyone know when the TR5 changed from non air bleed manifold assembly to the air bleed type. My TR5 built 12th May 1968 has no air bleed screw on the front manifold and no air pipe connector on the air manifold. I just want to know if mine is right for the date. On page 70 of Bill Pigott's Restorers Guide it is showing an air bleed screw not similar to the later TR6 brass screw as on my 1971 TR6. If it does't have an air bleed screw how is air intake regulated? Many thanks. Mike Quote Link to post Share on other sites
stuart Posted April 2, 2011 Report Share Posted April 2, 2011 On the butterflies. Stuart. Quote Link to post Share on other sites
ianhoward Posted April 2, 2011 Report Share Posted April 2, 2011 Hi Mike My 5 was built very close to yours on 23rd May and also has the original none air bleed manifold. It is my understanding that all 5's(?) were originally delivered like this but soon modified by dealers - under warrenty presumably - due to problems with obtaining a good and satisfactory idle. I believe that these original manifolds are now a rare find... Incidentally, mine idles quite happily at 700-800RPM (and lower when 'cold'). In addition, the Air Plenum has only one inlet pipe (for the rocker breather). The later TR6 plenum have the two inlets of course. Brgds Quote Link to post Share on other sites
Red 6 Posted April 11, 2011 Report Share Posted April 11, 2011 No. later 5's had the air bleed screw ala tr6, both my late cars (unloved barn finds or similar so probably origional) had the later set up. Early cars had no bleed screws and, as has been mentioned, were set up to idle by cracking open the butterflies. This led to problems with general running and an interim solution was to have dealers fit a factory supplied air bleed (which is nothing like the later production solution). What might be of interest is to establish when the rubber tube linking the injector manifold to the plenum chamber changed from a plain pipe to a moulded pipe. Quote Link to post Share on other sites
mjc Posted April 11, 2011 Author Report Share Posted April 11, 2011 Hi Red 6 I saw one of the first TR5s to be built last weekend and this had the earlier air bleed screw fitted. It was interesting as the air bleed pipe was connected to the air filter assembly and not the plenham assembly. Quote Link to post Share on other sites
saffrontr Posted April 11, 2011 Report Share Posted April 11, 2011 Mike, I don't believe that any TR5's left the factory with an air bleed. I have a copy of the factory service instruction and drawings issued to the Dealerships for this modification dated December 1968 which is after TR5 production ended. cheers Derek Quote Link to post Share on other sites
Mk1PI Posted May 6, 2011 Report Share Posted May 6, 2011 http://cgi.ebay.co.uk/1968-TRIUMPH-TR5-BLUE-/230618048095?pt=Automobiles_UK&hash=item35b1e8265f One owner TR5 on ebay - no airbleed Quote Link to post Share on other sites
david ferry Posted May 6, 2011 Report Share Posted May 6, 2011 That's my old car! David Quote Link to post Share on other sites
TR 2100 Posted May 6, 2011 Report Share Posted May 6, 2011 That's my old car! David So how come it's a "one owner car"? AlanR Quote Link to post Share on other sites
dblenk Posted May 9, 2011 Report Share Posted May 9, 2011 My TR5 in 1984 was fitted with no bleed and my brother said scrap that and fit the TR6 type manifold (now its worth a future) however i have the TR6 type and purcahsed an original TR5 manifold and also purchased a funny little bleed screw fitted by the dealers, so mine is a feb 69 build so i assume from above the original way for the rebuild is to fit the dealer bleed ? cheers david Quote Link to post Share on other sites
stuart Posted May 10, 2011 Report Share Posted May 10, 2011 My TR5 in 1984 was fitted with no bleed and my brother said scrap that and fit the TR6 type manifold (now its worth a future) however i have the TR6 type and purcahsed an original TR5 manifold and also purchased a funny little bleed screw fitted by the dealers, so mine is a feb 69 build so i assume from above the original way for the rebuild is to fit the dealer bleed ? cheers david Depends on whether you want the "Straight out of the factory" build style or "Bought from the dealers showroom" look. Stuart. Quote Link to post Share on other sites
Red 6 Posted May 19, 2011 Report Share Posted May 19, 2011 I notice the car has sold for £14500.00. I remember selling an origional un modified set of injector manifolds to someone on here. They were from a very early TR5 i had restored I remember thinking what a pig it will be setting up the idle with feeler gauges on the butterflies so fitted a TR6 set instead and it ran beautifully. Quote Link to post Share on other sites
dblenk Posted May 20, 2011 Report Share Posted May 20, 2011 I notice the car has sold for £14500.00. I remember selling an origional un modified set of injector manifolds to someone on here. They were from a very early TR5 i had restored I remember thinking what a pig it will be setting up the idle with feeler gauges on the butterflies so fitted a TR6 set instead and it ran beautifully. Hi Tom that was me, i now have original type, after market valve and TR6 type just to be sure i am slowly getting my bits together, i didnt go for your grille as i had two but always on the look out for badges and wheel trims (the wife will kill me if i buy another wheel trim)hows the lotus david Quote Link to post Share on other sites
Red 6 Posted May 20, 2011 Report Share Posted May 20, 2011 Hi David, I thought it might have been you, hope your keeping well. The Lotus is still "awsome", but more to the point it is in the driveway whilst the 4a gets built. Quote Link to post Share on other sites
dblenk Posted May 21, 2011 Report Share Posted May 21, 2011 HI i am fine just doing the fast road engine just got back from the engine place wear in the bores new rings might do it but build and leave it then its new pistons £400 + vat i didnt budget on, but hey the sun is shining and i am going to cut the grass very therapeutic cheers david Quote Link to post Share on other sites
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