Author Topic: Diesel tach/ Diesel alternator!! (Read 4454 times)

wolfboy · « **on:** December 04, 2007, 01:59:48 pm »

Hi, i own a vw 2.4 van with a w feed alternator fitted. I bought a set of dash clocks from a similar aged 1.9td van with a rev counter rather than a clock. When fitted the rev counter goes round to the max position. Anyone any ideas? I seem to be chasing my tail at the moment- not a good look!! Many thanks in advance, Matt.

Vincent Waldon · « **Reply #1 on:** December 04, 2007, 02:09:06 pm »

I'm guessing your rev counter goes up to 7000 rpm ??

You probably have a dash for a gas van rather than a diesel... the rev counter signals are different and so is the calibration.

There is a converter box available which some have used to convert the signal:

http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=128/category_id=287/home_id=59/mode=prod/prd128.htm

There are also some accounts of people modifying the circuit boards... although I've never seen specifics for a van cluster.

Obviously the easiest approach is to get the correct cluster.... not always an easy task of course.

wolfboy · « **Reply #2 on:** December 04, 2007, 02:16:16 pm »

Hi, thanks for reply. My clocks only go to 5000 as they came from a 1.9 turbo diesel van. Hence my confusion!!

moise · « **Reply #3 on:** December 05, 2007, 02:15:25 am »

i've got that:

CasualDays · « **Reply #4 on:** December 05, 2007, 08:00:12 am »

Where did you find that one? I' looked on their site, but I didn't see it. I love that style and size.

moise · « **Reply #5 on:** December 05, 2007, 08:14:39 am »

i find it in england --> ebay

you can find in france too:

click here

clbanman · « **Reply #6 on:** December 05, 2007, 09:23:00 am »

I did a search on their North American site and all I got was:
http://www.autometer.com/cat_gaugedetail.aspx?gid=3331&sid=11
http://www.autometer.com/cat_gaugedetail.aspx?gid=2749&sid=9
http://www.autometer.com/cat_gaugedetail.aspx?gid=2602&sid=12

wolfboy · « **Reply #7 on:** December 05, 2007, 10:33:20 am »

Did that run straight off your alternator? Any diodes or resistors etc involved?? Many thanks, Matt.

CasualDays · « **Reply #8 on:** December 05, 2007, 10:43:20 am »

Quote from: "clbanman"

http://www.autometer.com/cat_gaugedetail.aspx?gid=2749&sid=9

This is the one..a bit expensive but I like it!

What does it mean my "fabrication required: modification to the flywheel" ?

Can this go to any diesel like the OP Vanagon? Or are there other "modifications" required?

regcheeseman · « **Reply #9 on:** December 05, 2007, 12:52:00 pm »

Your 2.4 is an IDI and the 1.9 clocks are from a TDI.

TDI clocks take a signal from the ECU

You cant run them from the W term on the alt.

The easiest solution is to send 20 and a revcounter from a gasser to me and I'll mod it.

I've got a spare circuit board here, if you can solder two terminals you can swap it into your existing TDI guages. Probably.

shegel · « **Reply #10 on:** December 05, 2007, 01:43:03 pm »

ive got the auto gage 2888 in the mail. now i just need to make the time to hook it up

clbanman · « **Reply #11 on:** December 05, 2007, 03:56:46 pm »

On each of the link pages there is a link to installation instructions. The 2888 looks to be the easiest to install as it uses a sensor that mounts to the alternator, but would also be the least accurate. The 6806 should be the most accurate, but most work to install. Looking at the instructions, I think you could use the crank pulley instead of the flywheel. I think maybe tabs welded to the face of the pulley would be the easiest, not sure if they would cause problems otherwise.

shegel, what is street price on the 2888?