Australian air cleaner modification.

In response to three e-mails about my air cleaner modification, to cut down induction noise, I have been asked what "the Australian modification" was like.

Well bearing in mind this was to be fitted to a JB van and mine is a J, their new air cleaner unit was more for the filtration aspect than noise. They do have very dusty roads out there. Enclosed are view of the new air cleaner unit fitted by BUGLYVAN (link to his blog on the right). Like him I'm a member of the MCJTV group, for J type owners around the world, a more technical and how to do it, kind of site than rally pictures.

If you have a J, it would be worth joining the group, all are welcome and you might just learn something.

The original JB air cleaner assembly.
The new unit fitted to the engine.
The new unit assembled on the bench.
The kit of parts, all the brackets are custom made!! nice job BUGLY!!

What have I been doing? Well as promised Thursday night and in the dark I turned ROD round to work on the off side. By torch light he got jacked up and and both front and rear wheels and drums have been removed.

I took pictures but flash in the dead of night did not produce good results to publish here.

Full details of the Modification...

Hi Magpie -The Aussie air filter modification is basically an off-the-shelf Donaldson air cleaner assembly, with a double paper element air filter inside. The white pre-screen on top is a 50mm waste vent screen, and the filter outlet couples directly to the cast aluminium carburettor inlet via 3 x 50mm x 90 degree rubber elbows and some 50mm pvc pipe to join them together.The whole lot sits nicely under the engine cover, with not a lot of room to spare. The mounting brackets were designed to act as a heat shield to protect the air assembly from the exhaust manifold.If any JB owner wants more information on the Aussie air cleaner modification, they can contact me at Buglyvan@gmail.com and I will answer all of their questions.Cheers - Bugly.

Carburettor noise modification.

On my first drive of ROD I thought the intake noise was rather loud, it was loud on my JB but I have since fitted an SU carburettor with paper air cleaner and the noise is much reduced.

Many people have made modifications to reduce the noise, after all, the air cleaner is a tin can with some wire wool stuff in it, not exactly high tec. So, what is fitted to later vehicles, why paper elements. Now the side valve air cleaner is rather small and apart from using some sort of motor bike air cleaner inside the original canister there had to be another way. I had seen pictures of a noise/dust filter assembly on the excellent MCJTV site.

It was fitted to a J type to over come their excessive dusty roads. So what I wanted was to do something that was easy to buy/make/fit and was also easily removable.

So cutting down a larger paper element, stapling and super-gluing it together, having made a small hole for the breather vent pipe my new filter slips over the top of the existing casing. It can be easily removed and does give some extra filtration as well as taking the sharpness out of the induction noise.

The other job I did last night was to refit the speedo head, with replacement insides, to the binnacle, No I did not paint the cluster casing, the new owner can do that if he wants and also it would show up just how "workaday" the rest of the cab is.

I must concentrate on the items for the MOT, I must get him road worthy and road legal as soon as possible

ROD turned round tonight to check the offside.

Now we have light evenings I have been able to come home from work and in daylight do a couple of jobs on ROD each evening. Everything is so much easier when your now having to hold a torch while doing something.

A worms eye view of ROD. He started straight up last night, first press of the starter button, setting the mixture correctly has helped no end.

So I turned him round and will remove both wheel tonight to double check and adjust the brakes and all suspension nuts and bolts for tightness. 

He was a real talking point, yesterday when we had our free house painting session. they only did the front and inner porch but did leave the "spare" paint nearly 4 litres so that all helps. (this was a free paint, using a trade "paint pod" system, getting trade people to try the product and application system, for their feedback before the product is launched in the next two months).

I will be sorry to see ROD go but needs must, and I do have a keen buyer who is an ex-J type owner, who has first refusal on him.

Sunday Night, lets check the lights.

It's Sunday night so I thought I would check ROD's lights, all are working correctly but the head lamps will need to be correctly aligned, they are a  bit high at the moment, great for owl spotting but not much else.

The next job is to turn ROD round and double check every thing on the off side is correct. The day of the test is looming soon.

All this work I'm doing is just to get him on the road, ROD will be by "no means finished" but I'm getting him up to the minimum standard so he can be used on the road and becomes a running restoration. The new owner can then decide how much more work to do on him, leave as "work a day" or improve  but a least he can start to attend some rallies.

Yet another item ticked off on this pre-MOT check list.

Sunday work stopped by rain!

I started to work on ROD this morning, going over the jobs that its first road run had showed up.
While I had my camera handy I thought I would take a couple of pictures of the underneath wooden frame work, this had been requested by one of my blog readers, so here they are.
The above pictures showed up areas I had missed with the paint brush so this a good time to do it.

I then removed both front and rear near side wheels and drums, I always slacken the wheel nuts off, jack up the vehicle, undo the drum nut and gripping the complete tyre, remove wheel and drum as one. I always find it easier than just removing the wheel and then have to remove the drum separately,

In the past stubborn drums have needed a puller or slide hammer but using the whole wheel I have so far found both front and rear drums come off easily.

I then cleaned out the brake drums of dust checked all was well with the shoes and wheel cylinder and refitted the drums. I took the opportunity to bleed the brakes and managed to remove some trapped air from the rear wheel cylinder.So a little bit more has been done to ROD, I will turn him round in the next few days and do the same, clean and check the off side brakes.

When I first gained ROD I had drained and refilled the rear axle, after his short drive I drained some more oil from his rear axle in case the drive had dislodged any muck. The oil was clear so I just had to top it back up. The original oil or should I say treacle that I drained out was disgusting, I have a feeling ROD had been driven into the ground in later life.

A couple of pictures of a seat base as requested by Bowie. Later on I checked RODs lights and indicators and I was pleased to report all working correctly.

The clocks altered this weekend and it was so nice to have some daylight till 7.30 pm. I will be able to come home from work and do the odd job on ROD with ease, fantastic spring is here.

Let's start fixing things.

The first thing I looked at was the air cleaner, my first run in ROD last weekend showed me what other side valve J owners had told me, the induction noise from the air cleaner is louder than the engine. It is after all a very basic design, a tin can with wire-mesh in it. So how to make it more efficient? Well what do they do on newer cars? Fit a paper element. Now I like to do modifications to vehicles to improve safety or ease of servicing so I think I will try to get a circular paper air cleaner element to fit over this housing. If it does not work it will be easily removed with no damage done. That's a job to do when I'm down the car spares shop.
The reason I had the air cleaner off was to make sure all was tight as ROD had been running "weak" so I had to check for air leaks on the carburettor. I moved on to the faulty speedo, I removed the inner cable and one end was chewed up. Having removed the speedo head I fitted a new inner cable. I took this opportunity to replace both dash panel lamps.
I took the speedo head into the garage while we had yet another light rain shower and stripped the speedo down. It was at this point my wife Caroline asked "why not fit a new one" I explained I did have others but I wanted to see what was wrong with this one.
Well I found three problems, 1, the input shaft was very stiff, 2,the magnet on the end of the input shaft has lost its magnetism and 3, the rotating cam driven by a fibre gear is worn so that's its movement does not quite engage with the ratchet wheel to advance the mileometer.

I also took out the oil pressure gauge, this was full of dust where the inner blue light shield had slipped down allowing years of dirt to gain an entry.

Here the engine (on fast idle) is holding good oil pressure and you can now see the needle on the gauge having removed all that muck. Even the battery is getting a charge.

I still have to decide what to do with the original speedo, make one out of two? or try to get the parts. I would like to refit the original unit, I would , as I have done with ROD so far, to conserve whats there than just keep replacing and throwing much of him away.

Tomorrow (Sunday) I hope to have both rear wheels off and double check the rear brakes, shoes and drum, refit and adjust up now the shoes have bedded in a bit.

ROD's first road run in maybe 20 years.

I took ROD for a spin, after checking bolts, nuts, pipes, clips, split pins etc were all in place and tight I felt it was time to see if a small trip would show up area's needing more work.So I started him up, the Morris Minor battery which is currently fitted just about did the job, I knew it was too "small" (a morris minor battery is 38amp hour, while at side valve J should be 57 amp hour rating) but that's what I had too hand. He started up OK but a new correct capacity battery will have to be sourced soon.
I drove him to the end of the drive (I must mention to the gardener about cutting back this hedge).
( ROD stopped in my driveway, as some idiot with a camera was standing in the road ).
I took ROD to the local village pub, unfortunately shut, so no time for a swift half!
I then took ROD on a bit of a scenic road run, wandered out into the countryside, and stopped in this field entrance. ROD had driven well, clutch a bit sharp, maybe all side valves/chain linkage J's are like this, I don't know this is my first. ROD had started well on full choke and had been running on half choke OK, but would not idle on no choke so I tweaked the mixture screw. Half a turn in, no real difference, half a turn out still not much change, after a couple of tweaks I had forgotten where I had started!!!!

So I went for a little walk to let him cool slightly and take a couple of pictures of him sitting at the side of the road. He needed a rest, he had, after all done about four miles so far, rather a lot having rested for the last twenty odd years.

I think ROD is rather photogenic and it was very nice being out early, on this spring Sunday morning, all these pictures were taken before 7a.m. a glorious time of the day.

ROD started straight away and we drove home very well, this first "shake down" road trip high-lighted some things that need attending to.

1, A new correct size battery and clamp required.

2, The mixture needs setting up again as its running weak. (some idiot's been fiddling)

3, The induction noise is very loud from the air cleaner/carburettor, this is normal but I wonder if I can fit a better paper air cleaner assembly to quieten it down a bit.

4, The brakes are soft, they got better each time they were used as the new shoes bedded into the drums, though I feel a bleed of the brake fluid would also help.

5, The speedo does not work! So I will have to investigate the speedo head and cable to see what's going on.

ROD ran rather well, I was surprised just how nippy the side valve engine proved to be and I was getting a bit of a "high", I know I had a big grin on my face as we drove along. Even at this early hour many people I know were out and about, they all did a bit of "head turn" as I went by. (Was that a look of shock or surprise on their faces, I wonder?).

I also got a bit carried away driving home and was trying to hurry the gear changes, bad error there by me, you cannot do that to a side valve, three speed J.

So at long last the two years work so far carried out is coming to an end and an MOT test is on the horizon. I will be sorry to sell him but needs must.

Another 20 J type pictures have been added to the album on the right, enjoy.