How to tell if your Ferret has a 2 speed oil fed generator or the later alternator.    (Ver 1)


The above title may sound a bit ridiculous but it is very important that you know whether or not you have the 2 speed generator. If after reading this article you realise that you do have the generator rather than the latter alternator then I cannot stress enough that you should read the article hot linked below:

Area 3 Section 1 Ferret FV 701 Series.

Read the entire article but pay particular attention to the details of the pre-start procedure for a generator equipped vehicle. Failure to carry out the oiling procedure on the generator can lead to its very costly failure.

This whole subject came to a head on the Yahoo mail list group "Ferret- Heaven" when Arnstein in Norway was faced with the problem of identifying which charging system his vehicle was equipped with. It doesn't help that the regulator box for the alternator can actually have the word "generator" on its data tag! So, after being told to look for the filler plug near the pulley he asked the following question:

The plug I have is more like a screw (need a screwdriver to remove it), and is in a vertical position, but in the same place. It's about an inch long. The hole is about 1,5 inches deep, and very narrow at the bottom. I've enclosed 3 photos, none of which actually shows the plug. It's hidden under cables. Arrows show app position of it. It's dark outside, so I didn't see what I was photographing. Photos do show belts etc. So, what do I have, alternator or generator?

In Arnstein's case, this is most definetly an Alternator. Note the distinct fins adjacent to the pulley.

From Joe in the USA came this detailed answer:

You need to check your 'generator' panel. If its the flat one with a square cover its probably a number 9 mark 3 generator panel FV#546131. If you have this then you have an alternator (disregard the fact that the panel says: panel, generator). From the looks of your photos you have an alternator most probably FV#546125 although others were installed. The final check is to stick a mirror down into the engine compartment and look to see if you have any oil tubing going to your unit. The screw plug you describe is actually a port for greasing the shaft bearing at the front plate which is why its packed with grease. Alternators do not take oil which is why you cannot find an oil port on your unit. Does your engine have the modification log in the small tube? If it does and the alternator was installed while in active service the code will be recorded for this work. As to the fan belts you have alternator belts and an alternator pulley assy. The pulley will take three belts as installed in your ferret but the modification instructions only called for the installation of two belts so don't let that fool you. Trust me on this, all routine servicing requirements are easily attended to and adding oil to a ferret generator does not require any special skills (as long as it is in fact a 'generator'). The data plate on your generator panel should be easily visible, If it is not or is painted over and you do not wish to remove the paint then send me a scanned pix of the generator panel and I will confirm an alternator for you.


Download the big pics by clicking on the small pics...


Arnstein has also provided a photo of the corresponding regulator. Note that it is a fairly plain box with prominent cables at the top.


Download the big pics by clicking on the small pics...


From Ross in the USA:
Since I have my engine cover off and oil cooler removed to do my fuel pump job, now is an excellent time for me to help out!

Here is a JPEG of my ferret's generator. The gearbox oil filler plug is adjacent to the letter "F" on the fan belt. The large hole in the upper center is the breather and the cable connects to the connection just below that. You can just barely see the other bolt above the filler plug, and I'm not sure what that one is for, but the filler plug is the lower of the two. The oil pipes to the gearbox are on the underside, you can see the oil pipe along the bottom. (Not the huge one, that goes to the oil cooler.)

Hope this works for you,


Download the big pics by clicking on the small pics...


Ross has also provided a photo of the corresponding regulator box and a close up of its data tag. Note the very different appearance and the prominent cooling fins on the right hand side, also the side entry cabling and the large screw-on cap at the top (it covers a micro switch and some fuses).


Download the big pics by clicking on the small pics...



Download the big pics by clicking on the small pics...


My thanks to Arnstein and Joe and particularly Ross who kindly took pictures by request for this article.


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