JRA Oil Filter Extension 4BD1T

[1103.9TD]

G'Day, fitting a 4BD1T into a County, and wondering if anyone can help locate a specialised JRA part. It's the oil filter(s) extension for the fullflow and bypass spin on filters. Two parts to the unit, on my mates 6x6, one part is labled AYG 0474. These parts neatly keep the oil filter assembly clear of the prop shaft, and I would be very appreciative if anyone has any info leading to me being able to locate & puchase.

Another part I'm after is the rubber reducing tube from the Donaldson Air Filter to the turbocharger inlet. This is also a "JRA Special", reducing in a small elbow from 3in to 2 1/4 diameter. This small rubber tube is available from LR at a price of $250.00!!, if you know somewhere that stocks this item at a more favourable price, please let me know.

Although modification and/or fabrication may be neccessary in the event I fail to loacate these parts' I would prefer to keep the engine as close to the original JRA fit as possible.

Any suggestions on any alternatives most welcome. Thanks in advance, cheers...

[Maggot4x4]

I think you will find that the second part is a donaldson part, if you have the part number, find a truck supply store in your area and they should be able to order it from donaldson.

If that does'nt work, give donaldson a call direct, they are on Lucca Rd at Wyong NSW, and the can give you the part number and the details of a local distributer.

[1103.9TD]

Thanks Mag, but I tried Northern Truck Spares (NTS) up here, they are the local Donaldson dealers in Cairns, could not supply-even from the catalog, also tried Cummins, who apparently have the agency for the competition, with still no luck.

I'll give Donaldson a call 2day, see if they can shed light on the subject!.

In the mean time, anyone else had this problem with a 4BD1T install, I've heard the go is to beef up the front bump stops, so as not to hit the prop shaft on the standard oil filter assembly first, does this work?, my stops are untouched, but as added protection?.

[Philip A]

I notice that British Off Road In Qld are wrecking an Isuzu engined Land Rover. http://www.britishoffroad.com/.
Regards Philip A

[isuzu110]

Re the oil filter attachment...

The previous owner replaced the V8 in my County with an Isuzu 4BE1. I recall he purchased a different oil filter adaptor from John Davis in Sydney.

That said, I am still not happy with mine as the bypass filter will hit the diff so I have had to drop the bumpstop to stop this.

I've also heard of people spacing out the flter attachment with a 1" filler piece. Never seen it.

Interested to hear what others can contribute on this as well....

Re the Donaldson....

Recall phoning Donaldson in Sydney a few years back re bits for the air filter. The guy I got said they had no record of their products being used in 110s. I gave up trying to convince him.

[isuzu110]

Another tip from my archives...

Apparently the army used to use some contractors in Sydney for their turbo issues on the 4BD1-T. All I have is "G.C.G Turbos Condell park.....Dynamic Turbos Weatheral Park " if that means anything. This info was dated 2002.

I notice that both FWD Motors and TechnoBritish seem to service Perenties in Brisbane. Maybe they have leads on bits ?

[ISUZUROVER]

For the oil filter(s):

I assume you have a downward facing filter or filters (unlike the upward facing filter on the LR 4BD1). One of the later models of ISUZU engines has upward facing filters (2 filters - one for main flow one for bypass) and a housing that will bolt straight on to the 4BD1(T). Off the top of my head I cannot remember which one - maybe the 4HF1?

Maybe PM Strangerover as his business partner did this mod when he fitted a truck 4BD1 into his rangie.

[1103.9TD]

Thanks eveyone for your input, managed to locate the JRA extension(s), pick them up today-the listed part number was different-hidden!!. Ended up buying the rubber fitting, at trade price, just to keep originality and efficiency. Already been a lot of running around and haven't even started on fitting the engine!!. Thanks again...cheers

[Bush65]

Thanks eveyone for your input, managed to locate the JRA extension(s), pick them up today-the listed part number was different-hidden!!. Ended up buying the rubber fitting, at trade price, just to keep originality and efficiency. Already been a lot of running around and haven't even started on fitting the engine!!. Thanks again...cheers

Would you mind posting some more details for others that want to know.

[1103.9TD]

John, okay, ah, I'll start with the extra parts required for the oil filter assembly to clear the front prop shaft/diff, but believe me, I don't reckon I've got everything covered parts-wise yet!!. The parts are listed with the prefix of AYG-not sure what it stands for (anyone enlighten us?), but it's not a standard LR part number code. On the upper extension the letters/number AYG 0474 are cast, but in the LR parts computer all part numbers drop the zero, ie AYG 474, thats why whenever I asked for the part number, I drew a blank!.
I believe that these "AYG" parts were originally developed for the "Perentie" ADF contract, but as you are probably aware some civilian spec. 6x6's (anyone know how many?) were released onto the market, and I guess this means LR is obligated to have spares available.
At this stage I am still searching for the long studs, one is 200mm!, which are available, but will take 6 to 8 weeks ex Pommieland-which is interesting in itself. I'm getting bolts made instead.
There are a lot of small odds and ends, that are available from either LR or Isuzu, and it pays to check the price at each, I was quoted $720.00 for a turbo heat shield from LR, Isuzu was $35.00!!. I'm also a bit lucky in that I've got a mate, who is a Diesel Engineer, and who also owns a County 6x6, so we can compare differences on each engine.
Anyway, John, if you or anyone else has a specific question, I'll try and answer it as best I can. The engine goes in on Tuesday this week, all going well!!.
Cheers.

[Bush65]

Thanks 1103.9TD.

[isuzu110]

Ok, saw a JRA Factory spec Perentie 6X6 4BD1-T at Toowoomba on the weekend. Vehicle was from Rockhampton.

Was told that Jaguar Rover Australia made 200 civilian spec Perenties when they did the military contract. This vehicle was supposedly one of them.

Both rear salisbury axles were driven, with FW Hubs on the rearmost axle.

Oil filter adaptor was similar to mine except spaced out 1" from the engine to solve the clearance issues. Incidently, checked my notes from the previous owner and my filters are mounted on a Toyota Starfire 4 cylinder adaptor that uses a special bolt from John Davis in Sydney (part number JD5000).

This Perentie had fuel consumption of 16l/100k.

[1103.9TD]

Yeah, thats close to the number mentioned to me, never heard of FW Hubs on the rear axle though!, maybe it's an economy measure?-16ltrs/100!!, seems faily excessive, was there much wieght on it?.

You were right about Donaldson, all they do is manufacture good filtration systems, wouldn't have a clue about the various applications.

[ISUZUROVER]

Regarding the AYG numbers. They are specific to Perentie project components (or at least this is what I was told by Mal Story fromm maxi-drive).

I was talking with him about crownwheel and pinions and he mentioned there was a front-specific 4.7:1 R&P developed for the perentie project (because they initially used series 4.7 R&P's in the prototypes and they kept breaking). He gave me an AYG part number (and that is when he mentioned AYG being the perentie parts code).

[1103.9TD]

It's really unreal, it's almost like a security issue!!, the only guy's that can shed any sort of light on the matter, are either outside of LRA, or know what the situation is, and haven't been told to keep quiet!!. Maybe the ADF is REALLY short of backup spares??.

Further: Any truth to the rumour that the ADF has asked Isuzu to produce an unspecified number of 4BD1/T (s) recently, so that the "wartime reserve" can be maintained??. I heard that the ADF was suitably unimpressed with various military issues with regard to the TD5!!.

[1103.9TD]

I'm also assuming that LRA would have a resident 'Guru'(s), for tech support, on all models, possibly available on a 1300 number, what a great idea, mind you 20-odd years is a long time!!.

Hey, how about everyone with Isuzu LR's, posting photo's of their rigs on a new topic. I mean, let's face it, these Rover's are unique throughout the world!!.

[isuzu110]

Here's what the Toyota Starfire adaptor looks like mounted to the 4BE1

[ISUZUROVER]

Further: Any truth to the rumour that the ADF has asked Isuzu to produce an unspecified number of 4BD1/T (s) recently, so that the "wartime reserve" can be maintained??. I heard that the ADF was suitably unimpressed with various military issues with regard to the TD5!!.

A few years ago you could still buy brand new Gen. spec 4BD1's. I was quoted 8-10K new.

I know someone who works for Repco as a diesel fitter and engine dyno operator. Every 2 or so years, all the 4BD1's and 4BD1T's in the army's fleet get taken out of the vehicles they are in - given a test on an engine dyno for a whole day!, and if they don't meet the required specs are then pulled down and rebuilt (and then run in on a dyno after rebuilding), or otherwise go back in the truck if they are OK.

Repco charges the army the best part of $10K per engine.

[1103.9TD]

Finally finished the conversion, took her for a quick spin up to Mareeba from Cairns yesterday, 110kph continuously when road-holding not an issue!, even up steep hills!!, where the non-turbo would bog down to 60kph or so. I'm wrapped!!. Same fuel consumption, even though I got up it!!. The conversion has transformed the vehicle.

It looks great, really neat and standard, under the bonnet, and doesn't drip any oil (leaking rear mainseal in the 4BD1). Just a new exhaust sometime in the future, we managed to modify the standard, but it probably doesn't allow the engine to 'breathe' fully.

Cheers everyone, and thanks again for your input......

[ISUZUROVER]

Finally finished the conversion, took her for a quick spin up to Mareeba from Cairns yesterday, 110kph continuously when road-holding not an issue!, even up steep hills!!, where the non-turbo would bog down to 60kph or so. I'm wrapped!!. Same fuel consumption, even though I got up it!!. The conversion has transformed the vehicle.

It looks great, really neat and standard, under the bonnet, and doesn't drip any oil (leaking rear mainseal in the 4BD1). Just a new exhaust sometime in the future, we managed to modify the standard, but it probably doesn't allow the engine to 'breathe' fully.

Cheers everyone, and thanks again for your input......

Sounds good

would be interested to see pics - do you have the stock aircon and how close does the turbo sit to the air con box?

[1103.9TD]

PS, I can't wait to head up north for a bit of distance driving....

[1103.9TD]

I got rid of the standard air-cond 2 months ago, and put a condensor on the roof, expensive but efficient, even on hot days it runs at about 20%, at 100% it's too cold!!. The turbo would have been touching or too close to the standard air-cond box.

I'll try and post some pic's shortly...

[1103.9TD]

Hope this works.......This was just after fitting the engine, you can see the compressor off to one side, I'll have some better shots 2morrow....

[1103.9TD]

Interest.....Mates 6x6 4BD1T, we used the engine in this as our main scource of reference. This working truck is up the cape normally at least twice a month, with full supplies/tools and towing a trailer!!.....still going strong after 19 years & over 500000km.

[isuzu110]

looks good...

I'd be interested in photos of the turbo/manifold/aircon area plus intercooler placement (i presume you have one). The only 4BD1-T is saw had the aircon sacrificed as the turbo took the space.

How much clearance between the top of the turbo and the bonnet ?

What sort of of economy are you getting ? I average between 11.4 and 13l/100 on the NA 4BE1.

[1103.9TD]

Follows... photo's from various angles, air-cond still available, just modified. Bonnet has strengthening ribs cut out, and turbo sits very close, to be modified similar to 6x6.....

[1103.9TD]

Economy?, better than the 12L/100k I was getting with the NA, intercooler???, what should I expect to pay for something decent??, who should I talk too??, & I'd love to travel!!!, she goes really well......though not much further south than B'vegas.., time constaints!!.

[ISUZUROVER]

Economy?, better than the 12L/100k I was getting with the NA, intercooler???, what should I expect to pay for something decent??, who should I talk too??, & I'd love to travel!!!, she goes really well......though not much further south than B'vegas.., time constaints!!.

Looks very neat. That turbo really does sit up high though.

I get 9-11L/100km from my 4BD1 (NA).

Which turbo do you have, the IHI or the Garett (4BD1T's had 2 options over the years). Both ran about 5psi of boost but one didn't have a wastegate. EDIT - just saw the wastegate in the pics - doesn't look like the actuator rod is adjustable though.

If you are running the std. 5psi of boost (on the non-wastegated turbo you can't really increase boost easily) you will not see much benefit from an intercooler (but maybe in the temps up north you would).

For the cramped space in the engine bay it may be best to get a 2nd hand top mount intercooler, and fit it above the engine (will make plumbing easier) - but of course you will need to cut a vent in the bonnet for airflow. Nissan 4cyl TD and Subaru spring to mind as options. I think the subaru water to air intercooler (Subaru RS turbo?) would be a good option, also, and then no bonnet hole would be needed. A friend of mine runs one of these on a 4BD1T that runs 10psi of boost and an IHI turbo from a Subaru.

[andrew e]

love the conversion. Are you running the 4 or 5 speed? whats your top speed with the turbo? i would go for a water to air intercooler, a bit more work but they are meant to be heaps more efficent. SSS imports (Sydney) sell a complete kit ex subaru with pump and all for about $350.
I will be curious how you run your new exhaust when you do, i want to run mine underneath the car like a defender but theres not enough room around the bellhousing and clutch. mabe a bit of sheet metal modifing is needed for the pasenger footwell.

Andrew.

[1103.9TD]

Thanks guys, I'm running a 5 speed & top speed so far is 130kph, with still more to go, on a slight uphill incline!!. I'm unwilling to get another speeding fine (already owe the beggars $100 from last week, my first fine in 15 years!!!).
Intercooller sounds interesting, but I'll wait until the warranty on the engine expires. Mate of mine suggested running excess cold air from the aircond system through one, waddayareckon?; does intercoolling improve the longevity of turbodiesels?...+ I don't really want to get too far away from 'standard'...
Cheers, Gerry...