Mud-club

Vehicle & Technical => Defender => Topic started by: dew1911 on June 27, 2006, 13:55:16

Title: Tachometer
Post by: dew1911 on June 27, 2006, 13:55:16

Does anyone know if the TD (19J) has the ability to connect a Tachometer (Rev Counter) to, as I reckon it'd be a good investment.

And if so, what would I need (besides a dial!)

Title: Tachometer
Post by: MTyrrell on June 28, 2006, 10:16:25

Was looking to do the same on mine (TDi)

 You will need a diesel rev counter, a petrol rev counter wont work as they require a different signal.
 On Land Rovers with pre TD5 engines, i.e. TD and TDi the tachometer takes it's signal from the alternators 'W' terminal. A TD5 tacho wont work either as it is driven by the ECU.  

 You will need a 52mm guage if you are fitting it to the standard 110 dash. I have been trawling eBay but diesel tachometer are few and far between.

 I have a link somewhere for a company that sells VDO gauges especially for Land Rover diesels, as far as I can remember I think they were £90 + postage. Ill dig it out when i gat home.

 As for fitting it's straight forward, only five connections a 12volt pickup to power the gauge, 12volt in to the lighting circuit for the backlight and one signal cable to the 'W' terminal on the alternator. Simple as that.

Title: Tachometer
Post by: MTyrrell on June 28, 2006, 10:23:22

You need one like this ....
(http://www.croytec.co.uk/VDO%20rev.jpg)

Just done a quick Google search and found the company I was on about here  http://www.croytec.co.uk/rev_counters.htm They supply them with a full fitting kit and instructions, but be prepared they aint cheap expect at least the wrong side of sixty quid.

Title: Tachometer
Post by: paul_humphreys on June 28, 2006, 12:37:10

Thinking of the same thing. I was told about these http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=8077229717&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1

Paul

Title: Tachometer
Post by: dew1911 on June 30, 2006, 12:07:39

I was planning to bracket mount it between the side of the dials and the Radio so size isn't a major pressing issue.

Any know how far the Rev gauge would have to go and where the Redline is ect...

Thanks for the help so far,
David.

Title: Tachometer
Post by: landrover598 on June 30, 2006, 12:32:00

Redline is about 4500-4800 rpm

I've just fitted one of the gauges shown in that ebay link

Be awear that most rev counters won't work with a diesel, as most use a signal from the coil

You need a diesel specific tacho which takes its signal from the W terminal on the alternator

Title: Tachometer
Post by: dew1911 on June 30, 2006, 12:45:48

Yeah I see, I would possible want a bigger one as I don't want to go moving the dials round in the dash.

Thanks anyway,
David.

P.S. Redline 4500? According to Haynes peak power is at 4k!

Title: Tachometer
Post by: landrover598 on June 30, 2006, 12:49:36

I've not needed to go over 2500 rpm yet (70 on M-Way) so i wouldn't worry too much about the redline  :lol:

Title: Tachometer
Post by: dew1911 on June 30, 2006, 13:11:40

I'd just feel better driving it if I had a visual representation of the revs rarther than going by the engine note - If I have the radio on or something that could be disasterous.

Title: Tachometer
Post by: landrover598 on June 30, 2006, 13:16:41

That was the reason i fitted mine

It surprising how little the engine needs to be revved, less then 2k in everyday running, up to about 2.5 on the Mway

Title: Tachometer
Post by: landrover598 on June 30, 2006, 14:02:52

Just a thought

If you want something a bit bigger, have a look on ebay for a rev counter from a diesel Smart Car

They are about 65mm diameter and come in a pod

Again, be sure it's the diesel version (only goes to about 5 or 6k)

Title: Tachometer
Post by: Bush Tucker Man on June 30, 2006, 15:09:59

Quote from: "landrover598"

I've not needed to go over 2500 rpm yet (70 on M-Way) so i wouldn't worry too much about the redline  :lol:

2500RPM equals 70MPH!! :shock:

My Td5 is showing 2000RPM at 48MPH

Title: Tachometer
Post by: landrover598 on June 30, 2006, 15:20:24

Quote from: "Bush Tucker Man"

2500RPM equals 70MPH!! :shock:

Yep  :D  :D  Nice and quiet





ish  :lol: