AdrianH Posted October 28, 2019 Report Share Posted October 28, 2019 As topic title really. Since I've fitted a new choke cable (PI twin cable) I've had a quite loud, rather annoying, rev-related 'ticking' coming from the dash. I initially thought "rev related? has to be the rev counter..." so disconnected that. Ticking still there. Maybe the rev counter drive? Disconnected at dizzy – ticking still there. Eventually – by poking and prodding – identified the source as the choke knob. Weird. Maybe the securing nut or something behind the plinth is loose? So I've investigated behind (tricky but possible, just) and it's all fastened up tightly. Nothing rattling there. Whilst typing this it's occurred to be that the 'ticking' might be being referred up the cable from the metering unit – but if anyone else has experienced this or has a solution I'm all ears! Quote Link to post Share on other sites
RogerH Posted October 28, 2019 Report Share Posted October 28, 2019 Hi Adrian, could it be that the new cable is a little tight where it passes through the bulkhead and as the engine moves side to side it is moving b=very slightly the cable. Roger Quote Link to post Share on other sites
Michael Mckiernan Posted October 28, 2019 Report Share Posted October 28, 2019 Hi Adrian , have you tried disconnecting it from the metering unit then see if it's still there. If it is disconnect it from the fast idle and check again. Also dont secure the cable to anything that could cause resonance ( injection pipes ) Mick. Quote Link to post Share on other sites
matttnz Posted October 28, 2019 Report Share Posted October 28, 2019 Weird. I've got exactly the same thing. Changed throttle controls from CR type to underslung so got a new choke cable. Now rev-responsive ticking and doesn't seem to be the tacho... Quote Link to post Share on other sites
Ben Freer Posted October 28, 2019 Report Share Posted October 28, 2019 Is the choke cable touching any of the injector pipes? It may only happen with the bonnet down...... Quote Link to post Share on other sites
AdrianH Posted October 29, 2019 Author Report Share Posted October 29, 2019 I had a fiddle around last night (actually while investigating a misfire that developed on the way home ). I imagined it might be the overfuel lever rattling or something like but all good there. But I think Ben's injection pipe suggestion might be on the right lines – gripping the (overfuel) choke cable felt not unlike the pulses in an injector pipe, and the choke cable does snake up through them. Will take a look tomorrow. Quote Link to post Share on other sites
Casar66 Posted October 30, 2019 Report Share Posted October 30, 2019 All my chole-cables make that noise, just a matter of time. So I changed them every few years. especially whith soft top the noise is really annoying. If I put a little pressure on the knob (eg. with the thumb) it´s gone. I guess it the poor quality of the aftermarket-parts. Quote Link to post Share on other sites
StuartG Posted November 1, 2019 Report Share Posted November 1, 2019 I had to fit a new choke cable a couple of years ago and had an annoying buzzing coming from the choke knob. Filling the hollow back of the knob with blutac cured it. Quote Link to post Share on other sites
Casar66 Posted November 1, 2019 Report Share Posted November 1, 2019 I will try this. sounds too good. Quote Link to post Share on other sites
Motorsport Mickey Posted November 1, 2019 Report Share Posted November 1, 2019 (edited) Removed because of mistaken posting. Mick Richards Edited November 1, 2019 by Motorsport Mickey Total bollocks...brain fade. Quote Link to post Share on other sites
Casar66 Posted November 1, 2019 Report Share Posted November 1, 2019 ? I am afraid I do not unserstand. Quote Link to post Share on other sites
Motorsport Mickey Posted November 1, 2019 Report Share Posted November 1, 2019 4 minutes ago, Casar66 said: ? I am afraid I do not unserstand. Sorry mistaken posting, I've removed my original. Mick Richards Quote Link to post Share on other sites
AdrianH Posted November 4, 2019 Author Report Share Posted November 4, 2019 On 11/1/2019 at 6:41 PM, StuartG said: I had to fit a new choke cable a couple of years ago and had an annoying buzzing coming from the choke knob. Filling the hollow back of the knob with blutac cured it. I presume that simply damped the vibration. I'll try that and if it works out, put something a bit heavier and more permanent in there (like Milliput). Quote Link to post Share on other sites
Casar66 Posted November 4, 2019 Report Share Posted November 4, 2019 Today I wanted to try that blutack stuff because the noise getting louder. As i pulled the choke I had the knob with the metall pipe in my hand. But no cables. Means I need a new one. Maybe the noise ist an indicator for the choke's lifespan? Quote Link to post Share on other sites
matttnz Posted November 4, 2019 Report Share Posted November 4, 2019 1 hour ago, Casar66 said: Maybe the noise ist an indicator for the choke's lifespan? Nope. Original cable: No ticking, "new" choke cable after changing throttles to underslung: Tick-tick-tick Quote Link to post Share on other sites
Casar66 Posted November 4, 2019 Report Share Posted November 4, 2019 OK, that just one question remains: who sells a quality cable which last longer than two seasons? Quote Link to post Share on other sites
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