GeoffreyS Posted August 31, 2021 Report Share Posted August 31, 2021 Evening, I am looking to replace the silver-painted plastic scuttle vent on my CR with a metal one, which I shall have chromed. Does anyone know of a source for a metal vent, please? All I can find are plastic ones. Thank you. Quote Link to post Share on other sites
rcreweread Posted August 31, 2021 Report Share Posted August 31, 2021 Geoffrey - how about this: https://www.ebay.co.uk/itm/403109675275?hash=item5ddb35810b:g:G6QAAOSwB4xgyMs0 Cheers Rich Quote Link to post Share on other sites
GeoffreyS Posted August 31, 2021 Author Report Share Posted August 31, 2021 1 minute ago, rcreweread said: Geoffrey - how about this: https://www.ebay.co.uk/itm/403109675275?hash=item5ddb35810b:g:G6QAAOSwB4xgyMs0 Cheers Rich Thanks, Rich. I had be happy with a painted closed one, but they are for the CP model. On the later CR model, which I have, BL changed it to an open plastic feature. Thanks for the thought. I appreciate it. Quote Link to post Share on other sites
rcreweread Posted August 31, 2021 Report Share Posted August 31, 2021 1 hour ago, GeoffreyS said: Thanks, Rich. I had be happy with a painted closed one, but they are for the CP model. On the later CR model, which I have, BL changed it to an open plastic feature. Thanks for the thought. I appreciate it. Geoffrey - sorry, I completely misunderstood- I thought you wanted to change the grill for the earlier opening flap type one and chrome that!!! Doh seriously though, I think some people have changed the grill for a flap to stop water entering the plenum chamber so I believe it is doable cheers Rich Quote Link to post Share on other sites
GeoffreyS Posted September 1, 2021 Author Report Share Posted September 1, 2021 9 hours ago, rcreweread said: Geoffrey - sorry, I completely misunderstood- I thought you wanted to change the grill for the earlier opening flap type one and chrome that!!! Doh seriously though, I think some people have changed the grill for a flap to stop water entering the plenum chamber so I believe it is doable cheers Rich Thanks, Rich. Quote Link to post Share on other sites
stuart Posted September 1, 2021 Report Share Posted September 1, 2021 I have back converted a CR with a grille to the CP version with a flap, the difficult bit is getting the actuating lever and quadrant that fits behind the dash, there also seems to be a bit of a shortage of vent flaps at the moment. Stuart. Quote Link to post Share on other sites
GeoffreyS Posted September 1, 2021 Author Report Share Posted September 1, 2021 4 hours ago, stuart said: I have back converted a CR with a grille to the CP version with a flap, the difficult bit is getting the actuating lever and quadrant that fits behind the dash, there also seems to be a bit of a shortage of vent flaps at the moment. Stuart. Thanks, Stuart. That’s a bit more advanced than my pay grade! I’ll keep looking for a metal vent. Quote Link to post Share on other sites
saffrontr Posted September 1, 2021 Report Share Posted September 1, 2021 (edited) Triumph did look at a slotted metal vent when they were developing the 1972 model CC and CR series, it was just painted mind you. The attached image shows it fitted to CP25001-O along with other mods to the manifolds and clutch master cylinder etc Derek Edited September 1, 2021 by saffrontr Quote Link to post Share on other sites
BlueTR3A-5EKT Posted September 1, 2021 Report Share Posted September 1, 2021 There is a technique to chrome plastics. Ask this company as they spoke of it when I visited. https://www.beckworth.net/services.html Quote Link to post Share on other sites
GeoffreyS Posted September 1, 2021 Author Report Share Posted September 1, 2021 19 minutes ago, saffrontr said: Triumph did look at a slotted metal vent when they were developing the 1972 model CC and CR series, it was just painted mind you. The attached image shows it fitted to CP25001-O along with other mods to the manifolds and clutch master cylinder etc Derek Thank you, Derek. That looks good. Quote Link to post Share on other sites
GeoffreyS Posted September 1, 2021 Author Report Share Posted September 1, 2021 20 minutes ago, BlueTR3A-5EKT said: There is a technique to chrome plastics. Ask this company as they spoke of it when I visited. https://www.beckworth.net/services.html Thank you. That’s very helpful. I shall contact them. Quote Link to post Share on other sites
stuart Posted September 1, 2021 Report Share Posted September 1, 2021 56 minutes ago, saffrontr said: Triumph did look at a slotted metal vent when they were developing the 1972 model CC and CR series, it was just painted mind you. The attached image shows it fitted to CP25001-O along with other mods to the manifolds and clutch master cylinder etc Derek Whats the extra vacuum pipe for Derek? Stuart. Quote Link to post Share on other sites
saffrontr Posted September 1, 2021 Report Share Posted September 1, 2021 No ideas Stuart, the image from the other side of the engine bay is attached and it shows the pipe going into the footwell so maybe to a gauge? This series of images didn't show any of the interior so I guess we'll never know. Derek Quote Link to post Share on other sites
CP26309 Posted September 1, 2021 Report Share Posted September 1, 2021 Derek...I always thought CP25001 was the very first CP commission number? Interesting the two return springs to the plenum. Quote Link to post Share on other sites
stuart Posted September 1, 2021 Report Share Posted September 1, 2021 (edited) 34 minutes ago, saffrontr said: No ideas Stuart, the image from the other side of the engine bay is attached and it shows the pipe going into the footwell so maybe to a gauge? This series of images didn't show any of the interior so I guess we'll never know. Derek As its a factory test car your more than likely right so probably checking vacuum . Stuart. Edited September 1, 2021 by stuart Quote Link to post Share on other sites
stuart Posted September 1, 2021 Report Share Posted September 1, 2021 (edited) 1 minute ago, CP26309 said: Derek...I always thought CP25001 was the very first CP commission number? Interesting the two return springs to the plenum. Test car Stuart. Edited September 1, 2021 by stuart Quote Link to post Share on other sites
CP26309 Posted September 1, 2021 Report Share Posted September 1, 2021 Ah okay... hence the CR updates like the inertia switch, and the later molded rubber inlet tubes! Quote Link to post Share on other sites
saffrontr Posted September 1, 2021 Report Share Posted September 1, 2021 CP25001 was indeed the first commission number, Triumph built it along with CC25001 and CC25002 off line in July 1968. A real workhorse indeed for lots of development not being sold by them until April 1975. Best of luck with the chrome vent flap Geoffrey I'm sure that with some of the pointers above you will develop a solution. Keep us informed of progress. Derek Quote Link to post Share on other sites
GeoffreyS Posted September 1, 2021 Author Report Share Posted September 1, 2021 8 minutes ago, saffrontr said: CP25001 was indeed the first commission number, Triumph built it along with CC25001 and CC25002 off line in July 1968. A real workhorse indeed for lots of development not being sold by them until April 1975. Best of luck with the chrome vent flap Geoffrey I'm sure that with some of the pointers above you will develop a solution. Keep us informed of progress. Derek That’s kind of you, Derek. Thank you. Quote Link to post Share on other sites
RogerH Posted September 1, 2021 Report Share Posted September 1, 2021 Hi Geoff, I didn;t like the way that the TR4/4A vent lid would go rusty so I made a stainless steel one. The hinge is also stainless. This was then bonded (glued) to the lid with some very expensive aero Araldite. If you could machine the slots I could make the lid and then you could fix it to the hole in your car. It would only be flat rather than shaped like the plastic one. Roger Quote Link to post Share on other sites
GeoffreyS Posted September 1, 2021 Author Report Share Posted September 1, 2021 1 hour ago, RogerH said: Hi Geoff, I didn;t like the way that the TR4/4A vent lid would go rusty so I made a stainless steel one. The hinge is also stainless. This was then bonded (glued) to the lid with some very expensive aero Araldite. If you could machine the slots I could make the lid and then you could fix it to the hole in your car. It would only be flat rather than shaped like the plastic one. Roger Hello Roger, Thank you. That’s kind of you. Sadly, I don’t have a machining capability. I’ll have to keep looking. Thanks, again. Quote Link to post Share on other sites
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