Guest newtr6 Posted February 2, 2009 Report Share Posted February 2, 2009 hi any body tell me wher the fuel interia cut out switch can be found thanks a lot arthur Quote Link to post Share on other sites
ianhoward Posted February 2, 2009 Report Share Posted February 2, 2009 Hi Arthur There is one on ebay at the mo... they do come up from time to time... Inertia Switch Brgds Quote Link to post Share on other sites
Richard Crawley Posted February 2, 2009 Report Share Posted February 2, 2009 Are you trying to find it or buy one If you’re trying to find it, it can be found on the nearside of the bulkhead just to the right of the battery (looking from the front); a sort of grey coloured plastic cylinder with knob on the top! Quote Link to post Share on other sites
RobinTR6 Posted February 2, 2009 Report Share Posted February 2, 2009 Hi Arthur There is one on ebay at the mo... they do come up from time to time... Inertia Switch Brgds Arthur, if you mean where on the car its the grey cylinder on the passenger side of the bulkhead, about 3 inches long , 1 inch diameter with a couple ogf wires in the bottom and a screw in cap on the top. Quote Link to post Share on other sites
Richard Crawley Posted February 2, 2009 Report Share Posted February 2, 2009 Beetcha Robin; but your's is a more detailed script Quote Link to post Share on other sites
Guest newtr6 Posted February 2, 2009 Report Share Posted February 2, 2009 hi thanks for speedy replies have all trs got them cos i saw one on ebay,and this jogged my memory of never seeing one on my 1969 tr thanks arthur Quote Link to post Share on other sites
foster461 Posted February 2, 2009 Report Share Posted February 2, 2009 hi thanks for speedy replieshave all trs got them cos i saw one on ebay,and this jogged my memory of never seeing one on my 1969 tr thanks arthur I thought that all of the PI cars got one. None of the carb engines did as the fuel pump is the AC mechanical driven off the camshaft. Probably a good idea for people converting from mechanical to electric. Quote Link to post Share on other sites
88V8 Posted February 2, 2009 Report Share Posted February 2, 2009 have all trs got them cos i saw one on ebay, and this jogged my memory of never seeing one on my 1969 tr Its purpose is to stop the fuel pump if the car turns over. For minimal cost, seems a good idea. Ivor Quote Link to post Share on other sites
Richard Crawley Posted February 2, 2009 Report Share Posted February 2, 2009 (edited) hi thanks for speedy replieshave all trs got them cos i saw one on ebay,and this jogged my memory of never seeing one on my 1969 tr thanks arthur All PI's should have one fitted as far as I'm aware; as said, it’s a safety feature to diss power supply to the fuel pump in the event of an accident. Look for an empty “C” bracket on the bulkhead or possibly some holes where the bracket rivets have been drilled out & probably a pair of spade connectors joined near the bulkhead to complete the circuit. The inertia switch will (should) operate in the event of sharp acceleration/deceleration (as in shunt) & not just if the car overturns; it has been known to operate in the case of spirited driving around bumpy lanes! If yours is missing, my advice would be to fit one; it’s a standard safety feature & the lack of one could give your insurance company an excuse not to pay up in the event of an accident even if it doesn’t involve fire! Edited February 2, 2009 by Richard Crawley Quote Link to post Share on other sites
badshead Posted February 2, 2009 Report Share Posted February 2, 2009 There's another one on Ebay, listed for a Stag, but same item http://cgi.ebay.co.uk/Triumph-Stag-1975-fu...%3A1|240%3A1318 Quote Link to post Share on other sites
Guest ntc Posted February 2, 2009 Report Share Posted February 2, 2009 (edited) All PI's should have one fitted as far as I'm aware; as said, it’s a safety feature to diss power supply to the fuel pump in the event of an accident. Look for an empty “C” bracket on the bulkhead or possibly some holes where the bracket rivets have been drilled out & probably a pair of spade connectors joined near the bulkhead to complete the circuit. The inertia switch will (should) operate in the event of sharp acceleration/deceleration (as in shunt) & not just if the car overturns; it has been known to operate in the case of spirited driving around bumpy lanes! If yours is missing, my advice would be to fit one; it’s a standard safety feature & the lack of one could give your insurance company an excuse not to pay up in the event of an accident even if it doesn’t involve fire! It was not fitted to all PI's most 5's did not have it and some early 6's Neil Edited February 2, 2009 by ntc Quote Link to post Share on other sites
Richard Crawley Posted February 2, 2009 Report Share Posted February 2, 2009 It was not fitted to all PI's most 5's did not have it and some early 6's Neil Really? Quote Link to post Share on other sites
Alec Pringle Posted February 3, 2009 Report Share Posted February 3, 2009 Quite correct Neil, neither my '68 TR5 back in 1970 nor my '69 TR6 (early ex-road test car) in 1976 had one fitted on acquisition, and clearly neither had ever had one fitted. Cheers, Alec Quote Link to post Share on other sites
ianhoward Posted February 3, 2009 Report Share Posted February 3, 2009 Arthur My TR5 also never had one (not on the wiring diagrams either) and I have retro fitted one (but not in the 'standard' engine bay position), both for the safety aspect and also as as a 'theft deterrent' as the engine cannot be started if it is isolated... In addition, circuit checking can be done with ignition 'on' and the fuel pump not running... Brgds Quote Link to post Share on other sites
Richard Crawley Posted February 3, 2009 Report Share Posted February 3, 2009 Interesting, thanks for the feedback; so does anyone know when they became standard fitment? A friend back in the 70’s had a 68 TR5 & his had one but I suppose it could have been retro-fitted; did any 5’s have them factory fitted? It would seem rather a nonsense to factory fit later 5’s & not fit them to the early 6’s but I suppose Triumph did many things back then that didn’t make much sense! Quote Link to post Share on other sites
harrytr5 Posted February 3, 2009 Report Share Posted February 3, 2009 There was one fitted to my old TR5 bulkhead (1968) and my TR6 (1969).Both TR wiring looms (original)had the connections for the inertia switch in place.I still have the old TR5 wiring loom in the loft for reference. Regards Harry TR5 Nutter. Quote Link to post Share on other sites
paul gardner Posted February 3, 2009 Report Share Posted February 3, 2009 According to the Moss catalogue, fuel cut-out switch was fitted from eng no 52328CP. Not sure how we can translate this to a model year? Yours Paul Quote Link to post Share on other sites
alanwcoote Posted February 3, 2009 Report Share Posted February 3, 2009 According to the Moss catalogue, fuel cut-out switch was fitted from eng no 52328CP. Not sure how we can translate this to a model year? Yours Paul Morning gents A question,my 6 has one and are you saying that by tracing the wiring back a little and putting a switch in the power feed wire we have created an imobalizer. alan Quote Link to post Share on other sites
Richard Crawley Posted February 3, 2009 Report Share Posted February 3, 2009 Morning gentsA question,my 6 has one and are you saying that by tracing the wiring back a little and putting a switch in the power feed wire we have created an imobalizer. alan Absolutely; my 6 originally had a simple toggle switch fitted out of sight under the dash next to the heater. It actually prevented the car being stolen once when the Police were staking out a railway commuter car park. They caught the bastards trying to start my car & they said it was a good job they didn’t get it going because they had decided they were going to stop them leaving the car park & arrest them come what may! Another way of immobilising is simply to operate the inertia switch; probably enough to confuse stupid little shits out for a joy ride but wouldn’t deter a thief who knows the cars. Quote Link to post Share on other sites
asland Posted February 3, 2009 Report Share Posted February 3, 2009 (edited) Hi My April '71 ( CP52654 ) has got the switch. Picture is from a different car though... Cheers Hal Edited February 3, 2009 by asland Quote Link to post Share on other sites
ianc Posted February 3, 2009 Report Share Posted February 3, 2009 It's listed on the Moss site as C41220AX, at £31.27 plus VAT. Worth fitting to any TR which has an electric pump (as have many V8s). Ian Cornish Quote Link to post Share on other sites
jobster Posted February 3, 2009 Report Share Posted February 3, 2009 (edited) Revington has some uprated ones which can be found here. In their newsletter last week they mentioned a 50% discount, can't see it on the site so maybe just for newsletter-member. Not an original one, good luck finding these. You would only need it once but with a PI I would not dare driving without one. The originals are prone to failure after 30+ years but can be easily opened, cleaned, fixed and re-assembled again. Edited February 3, 2009 by jobster Quote Link to post Share on other sites
Richard Crawley Posted February 3, 2009 Report Share Posted February 3, 2009 Not an original one, good luck finding these. You would only need it once but with a PI I would not dare driving without one. The originals are prone to failure after 30+ years but can be easily opened, cleaned, fixed and re-assembled again. The original switches were not unique to the TR so can probably be had from several different sources. I also read somewhere about modern equivalents being suitable from several car makes; Ford was specifically mentioned but I’ve no idea what’s suitable & what isn’t. Quote Link to post Share on other sites
ianc Posted February 3, 2009 Report Share Posted February 3, 2009 Suddenly, I remembered the latest Revington Newsletter, and from it here is Bill's first offer: Fuel cut off inertia switch RTR8346K . This part is a must for all fuel injected cars as it is a safety critical item. If you do not have one fitted then you must fit one of these. This switch will cut the feed to the fuel pump in the event of an accident and prevent it from continuing to pump fuel. It only has to work once so you want to make sure yours is in good working order. At the price I am offering it at it is worth replacing the existing one in any case. RTR8346K normally retails at £33.21 (inc vat) and includes the inertia switch, connector, 2 screws and fitting instructions. As this is my first offer I am pushing the boat out and am able to offer this item at a significant discount of 50% making the sale price £16.61(inc vat). Give me a call if you require one for yourself or two or more for your club, or buy online below . Don’t forget they don’t just fit TR’s, any fuel injected car will benefit from the fitment of this switch. This offer is only available until the 28th February 2009 so please call soon to place your order. Please quote NL0209. Ian Cornish Quote Link to post Share on other sites
saffrontr Posted February 3, 2009 Report Share Posted February 3, 2009 According to the Triumph Newsletter no 247 dated 4th September 1970 and the 1973 version of the parts book (517785A) the inertia switch was fitted from body number 51399CP rhd and body number 52328CP lhd. That would make it at about commission number CP52300 for rhd and CP53750 for lhd. cheers Derek Quote Link to post Share on other sites
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