BigJimnyMeet (North) 2020

Its the big one! The 50th Anniversary of the Jimny.

POSTPONED - UPDATE TO FOLLOW

Parkwood (Tong - near Leeds)

Event details are HERE

BigJimnyMeet (North) 2020 - Current attendees -
49

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Baofeng DM-9HX DMR

Notes on the programming and use of a DM-9HX DMR Radio.

I have put these together as a simple reminder to myself on "how I did it" and also as a help to others. The challenge with Digital Radio is that it is binary, it either works or it doesn't, there is no inbetween version of "I can just hear you " or "it nearly works". Playing around with DMR, you will hear a lot of silence!

DMR for Amateurs has evolved from commercial digital systems such as Tetra etc. This means the firmware code in radios tends to be similar to that you would expect to find in a police/security/PMR device, ie. channels are all pre-programmed and the end user has little or no control over channel settings in day to day use. Therefore a lot of the work setting it up is done from the computer and not the radio. Apparently a high end radio such as the Anytone 878 will allow much more Amateur "on the fly" programming, but the Baofeng DM-9HX is only around £65 so the intelligence is in the computer setting up and not the radio.

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419 Hits

RockLobster Build - Part 3 - Re-assembly

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​This three part article covers my building of a RockLobster 6.5:1 transfer box. The article parts are:

  • Part 1 - Dis-assembly (see HERE)
  • Part 2 - Building the gears (HERE)
  • Part 3 - Re-assembly (this part)
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  1402 Hits
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1402 Hits

Keithy's Trayback

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Has power been an issue for your Jimny?

It's not an issue here! Check out Keithy's Trayback build

See Read more...

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  1738 Hits
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1738 Hits

RockLobster Build - Part 2 - Building the gears

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​This three part article covers my building of a RockLobster 6.5:1 transfer box. The article parts are:

  • Part 1 - Dis-assembly (see HERE)
  • Part 2 - Building the gears (this part)
  • Part 3 - Re-assembly. (see HERE)

The kit I am using (Trail Gear) contains gears and parts to replace/add to an SJ Transfer box. Within an SJ transfer box are effectively three gearsets/shafts as follows:

  • Input shaft - The Trail Gear set contains a replacement shaft to which you add either the original bearings or new bearings as you prefer,
  • Counter shaft - The Trail Gear set contains a replacement shaft and gearset to drop in,
  • Output shaft - The Trail Gear set contains replacement gears for the original gears, you either re-use the original bearings or new bearings as you prefer.
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  1323 Hits
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1323 Hits

RockLobster Build - Part 1 - Dis-assembly

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I have embarked on building my own low ratio transfer box. I have previously built two boxes, one for my SJ and one for my Jimny but both of these were 4:1 boxes built using the "Difflock" cut & shut gears. This is a frequently maligned process but the current Jimny one has served nearly 10 years so far so they cannot be too bad, however with 32" tyres it is time for something more low range.

Since I did the cut & shut one, a variety of aftermarket gearsets have appeared that provide a "drop in" solution with pre-cut gears. There are a variety available from cheap Chinese versions through to Japanese manufactured ones made in the original factory.

I went for the Trail-Gear 6.5:1 set as it represents a mid priced solution that has been on sale in the USA for a number of years. This should bring back the gearing quite nicely on the road whilst providing a very low gearing off-road.

Also needed is a Suzuki SJ transfer box, either a 410 or 413 will do (except for the very early 410 versions which are useless). See the section in the Wiki - HERE - which tells how to identify the correct box. Late 413 boxes are particularly good as they have the same larger flanges that the Jimny has, however it is straight forward to drill the old ones if necessary.

If you are doing this from scratch you will also need mounting arms, propshafts and a speedo adaptor to fit it to a Suzuki Jimny. Of course, I already have those parts on my as it has a 4.1:1 Transfer box already fitted.

So the build begins......BigJimny's Transfer box.

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  3741 Hits
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3741 Hits
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