daverclasper Posted July 25, 2018 Report Share Posted July 25, 2018 Hi. Used to one of these back in the day , when I prob didn't one. Not sure if i need one now, as car runs well . I set timing static, if need be, then adjust for advance/retard by any pinking. I guess, I would like to go for a luxury environment, "what's happening at different revs with the timing". Any improvement on performance and fuel consumption (good on runs, but half that driving around the city ). Is it worth me buying one for this scenario?. If so, are new cheap one's any use for occasional use, or better to look for used (budget, around £15). Any help great, thanks. Dave Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 25, 2018 Report Share Posted July 25, 2018 Any can be useful, what you are doing is the best way, having a strobe can show up erratic timimg , floating about But unless you have the dizzy test data checking up the rev range is not easy, much dizzy data is quoted as decelerating So what you can check and actually find can be very misleading In the end Its what youre happy with On warranty we could test distributors on professional rig and results were inconclusive, in the end we never bothered, Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted July 26, 2018 Report Share Posted July 26, 2018 12 hours ago, daverclasper said: Is it worth me buying one for this scenario?. If so, are new cheap one's any use for occasional use, or better to look for used (budget, around £15). Any help great, thanks. Dave I think mine's a Gunson, I've had it for years and just check the timing every so often while the engine's idling. The added features on some such as rev indicators never seem to correlate to what is happening at the engine, so they're a waste of money if you have to pay extra for them. You'll find them for less than £20 on eBay, and it'll be perfect for just the occasional check to see if things are running correctly. Link to comment Share on other sites More sharing options...
muddypaws Posted July 26, 2018 Report Share Posted July 26, 2018 14 hours ago, daverclasper said: Hi. Used to one of these back in the day , when I prob didn't one. Not sure if i need one now, as car runs well . I set timing static, if need be, then adjust for advance/retard by any pinking. I guess, I would like to go for a luxury environment, "what's happening at different revs with the timing". Any improvement on performance and fuel consumption (good on runs, but half that driving around the city ). Is it worth me buying one for this scenario?. If so, are new cheap one's any use for occasional use, or better to look for used (budget, around £15). Any help great, thanks. Dave You know you can never have too many tools! I think its better to get a second hand good quality item though - think mine was £40 but its buried in the garage somewhere. Link to comment Share on other sites More sharing options...
JohnD Posted July 26, 2018 Report Share Posted July 26, 2018 The prat-trap with many guns is the advance adjust on them. This is for engines that do not have a scale on the pulley, you set it and then coincide the markers. But if you do have a scale, and do not ensure that the adjust is set to zero, then you can set the advance to scale PLUS gun adjust! I have secured my gun's adjust to zero with gaffer tape, as it's happened more than once! John Link to comment Share on other sites More sharing options...
Anglefire Posted July 26, 2018 Report Share Posted July 26, 2018 Got that tee-shirt John I have the Gunson one - I actually don't like it - can't really put my finger on it, except to say that I found the twiddle dial a pain - and didn't seem that accurate or consistent. I do fancy the really posh ones from the US - but they are a lot of ££. Trouble is, I like gadgets. ? Link to comment Share on other sites More sharing options...
Ian Foster Posted July 26, 2018 Report Share Posted July 26, 2018 I have had mu Gunson one for over 40 years. Just as simple gun with no adjustments, which is fine on the GT6 with its graduated crank pulley. It does show whether the distributor is advancing with revs, which is something that a static time only cannot. I would recommend however that to confirm that your crank pulley is accurate ref TDC, which can be done using a piston stop. Mine is about 1-2 degrees out (found out when I was checking valve timing... which was spot on by the way and reassuring after an engine rebuild by others) I also picked up a dwell/rev meter at Beaulieu AJ a few years ago which is also useful as a' second opinion' on revs. PS has anyone had experience of setting points using a dwell meter? Ian Link to comment Share on other sites More sharing options...
Anglefire Posted July 26, 2018 Report Share Posted July 26, 2018 I have a dwell meter - must be 30odd years old - and it works well - I tend to set the points using feelers and then check with the dwell to confirm it. Its is how I found one issue earlier in the year when it wouldn't rev - I forgot to set the points and the dwell was a near to nowt as you could get so not enough time for the coil to charge up ? Link to comment Share on other sites More sharing options...
NonMember Posted July 26, 2018 Report Share Posted July 26, 2018 I've got a strobe light with advance knob, which incorporates a rev counter and a dwell meter. It was given to me as a leaving present from my first job, almost thirty years ago. It still works fine on all counts, despite being a Halfords brand ? Like Mark, I find the dwell meter very useful for checking that the feelers have given the desired result. This was especially true when I owned a Stag, with the two sets of points, although it also proved that wear in that distributor meant the points were no longer an acceptable method of ignition - one of the two occasions I've fitted a Lumenition to cure a serious ignition issue. Link to comment Share on other sites More sharing options...
Ian Foster Posted July 27, 2018 Report Share Posted July 27, 2018 Thanks chaps Gives me something to dwell on. Ian F 2 Link to comment Share on other sites More sharing options...
dougbgt6 Posted July 27, 2018 Report Share Posted July 27, 2018 Groan! db Link to comment Share on other sites More sharing options...
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