To me it sounds just like something is rubbing on something.
That would explain why only under load as things are shifting around at that time due to the torque.
Possibly even a loose fastener which is allowing the two joined parts to rub just that bit.
Try the hose pipe stethoscope for sure, but include mounts and both ends of anything that moves with the engine and attaches to the frame.
As it is a low intensity high frequency sound, it would be a small part vibrating and rubbing.
It could even be in the bay but not on the engine itself, just an sympathetic harmonic vibration.

Put the same 75 w 140 full synthetic in the front diff. Interesting stuff it is crystal clear, and flows nicely when cold.
Checked all fluids, 28 psi in the fronts, 38 in the rears, ready for the trip up North at zero dark thirty tomorrow morning.....

So, I know this has been knocked around a bunch, but for my 16 in Yokohama's what do youse guys run for air pressure?
I have been running 38 and 38.............

I am in the midst of doing diffs, T-case, and engine services.
I noticed ~after, of course~ that I was sold 75-140 full syn gear oil, and manual calls for 75-90........
155k miles on the beastie, will there be any issue with the wider viscosity range gear oil?
Did a search, and found no answers......(Did not even bother trying on the dark side!)
Cheers!
Tom

As part of prep for next weeks 1500mi trip.
Doing all fluids on Bolt today. (except trans)
Hope I don't find as much metallic silt!
Going to put some strong magnets on all 4 plugs just because........

Thanks, Rob.
I lean towards Bilsteins, however as I do not get to drive the P-38 like I stole it, possibly Monroes will be just fine.
Cheaper too!
Sorry to hear that your traffic laws are getting even more draconian!
I have loosely followed the slow degradation of the driving conditions over there via Clarkson's rants on Top Gear over the years....
Not quite that bad here, in fact, if you do less than 80mph on most freeways, you are road kill!.
That's why when I want to go have a good solid off road hooning session, I go down to Oz and break out the trusty '85
Virtually no rules or regs once you leave the sealed roads! How cool is that??
On a recent 20,000km trip round Oz, about 50% off sealed roads, we saw exactly 3 cops, all parked in towns......Beaut!
I would love to get hold of a P-38 down there and do the trip again clockwise this time.....Just as a comparison.

I have here in the shed, 2 virtually identical 02s
Bolt is EAS, and the Borrego has springs Old Man Emu, if i recall (NO I did not castrate it, it came that way)
Having an opportunity to drive them under identical conditions back to back, which I have done, I will have
to say that at speeds 35mph and below, the springs are bloody awful. I would say about 25% more harsh.
Small bumps really hit hard.
At highway speed, they are about the same as long as you do not hit any bad pavement.................
On the LA Freeways, in the inside lane at 85-90 mph, if you hit a bump, and there are lots!
and you happen to be on any kind of curve, you MUST have a death grip on the wheel and be wide awake!
The front end will tend to try to jump sideways taking the rest of the car with it.
It is not really scary as such, just unnerving. Oh, Borrego has good shocks all round......
On smooth 85 mph sweeping turns, there is noticeable body lean and sway since, as Gilbert mentioned, it sits too high.
With EAS, it feels so much more planted. I hate having to swerve to avoid something in the road in the Borrego,
Bolt is much more stable on EAS. It just feels like you are much further from the edge stability wise.
I really do not need to sing the praises of a P-38 on EAS, as Bolt is. Let's just say, Bolt is the go to daily driver for local and long distance. It is just so much safer than the Borrego on springs.
In fact, we are heading off next week to the snow country 1500mi R/T.
I am selling the Borrego, and may or may not put the EAS back.
Car is so perfect otherwise, it is a shame it is on coils.
I had another enthusiast come round and try both as he was thinking about springs. He kept his EAS.

Over the years, I have used Monroes and Bilsteins.....I have liked both. Boge, I have no issues with
I have Bilsteins on the 85 and it has been truly off road rallied in the Outback.
Good performance in the worst conditions on the planet! (I tend to drive it like I stole it)
Any particular models of either that are liked or despised by anyone?

I have a young niece who thinks it's fun to make the lights flash on keyfob remotes.......
Took my second visit to my brothers to work out what was happening. Sticky fingerprints on the fob were the giveaway.
I have stopped leaving the fob on his counter......

Hey Morat, I am still chuckling about the pure evil of de syncing your deadbeat flatmates car! Well Done indeed!
Anyone tested just how many presses you do get? I may have to go try this...WCPGW?

Leaving a fob where your flatmates can get it is about as dumb as leaving your 35mm camera out.........
You pick it up and notice there are a lot fewer shots left on the roll!
Tip: Always pick up your own photos from the processor..... I got some very "creative" photos......
Come to think of it, both are similar to the old practice of leaving a bunch of disposable film cameras on the table at a wedding reception so the guests can take their own photos for you...........Ohhhhhh!!! The Horror!
But I digress.......

Aloha,
Looking for some consensus on new shockers for Bolt.
I finally traced a strange thumping noise to LF and RR shocks having worn bushes.
As they are probably original, and I have 155k on it now, I may as well replace all 4.
I have Arnott Gen IIs on it, so no extra height.
What do we like these days for shocks?
Cheers.
Tom

The CPS is a sneaky little bugger. one second it's good, the next, it's not. Sometimes they will warn ya a bit first....
Fuel pressure is a schrader valve on the rail, so just use a tire pressure gauge.
These beasts do not usually just stop dead unless the CPS or the inertia switch fail, and I do not recall ever reading about the inertia switch suddenly failing.....Have you checked that? Fuel pressure, if present, will also rule that out.
Obviously, fuel supply is also a fuse and a relay. Easy to check, just swap relay with another of the same colour.
Speaking of relays, the other thing that will cause a sudden change of state from well running car to massive inert sculpture, is a bad under-bonnet fuse box. Give it a good look, and a sniff test...looking for burnt bits and smelling like toasted electrics. Pull each relay and look underneath for blackened plastic. The Fusebox is a wear item, and usually need replacing at about 15 years........There are several versions, and they are not interchangeable, so if you find this is the issue, compare the part numbers.

Battery 16v without it running? (Seems I have heard this is a Nano glitch, but that's high)
Could be a failed Crank position sensor.
Now that I think about it, I am not sure if this can be read on a Nano, I have never looked?
Check the wires and plug on the little bugger first.
These can just quit, but with the errors you have logged, it may have spluttered a bit before dying.
The CPS is the only spare part I carry with me everywhere. No workarounds.
Dumb question, with you being in the Philippines, but was it hot? You can possibly test this part by getting
it cold. Freeze spray, dry ice, or just plain ice ~May~ get it to work for a few minutes. This is not
a totally conclusive test however as you will get no result if it has finally died and failed open.

Thanks for the tips!
I have a factory rack for each of mine, however, a mate, who is still in Hawaii wants something a
bit beefier than factory, so I am looking for parts for him as well.
Hoping that something for him will show up at a local wrecking yard......
Keep warm!
Cheers,
Tom

Yakima racks were priced in Hawaii, where everything co$t$ a bunch more.
-22??! I have a theory about folks that live where it gets that cold.......
Gotta be in a witness protection program of some sort, otherwise......Why would you do such a thing voluntarily?
(This from someone who has lived the better part of their years in Hawaii and is now "suffering" in 10C weather. Yea, I'm a wimp!)

I had seen that video, thanks for posting it here though. I love his true indignation about the low quality of the Fram.
Used to use only Fram on my cars as they had the correct hype, and that is what dear 'ol dad used! (Turns out, crap product to go with it!)
Having always used Wix for any marine diesels I have been in charge of, I gravitated to Wix for my trucks and diesel vans as well.
A good friend, and great engine guy told me to use "The best filter you can buy and, a good Dinosaur based oil" a long time ago. so that's what I have been doing.
He uses only the Napa Gold or Bosch filters.
For the last 25 years, I have been running Delo 400 15w-40 in the Cats (On the boat) as well as all my vehicles and generators, petrol and diesel
with no problems.
I have not switched over to full synthetic oils on the Rangies as I have had issues with it sneaking past main seals on a goodly number of
stationary power plant diesels. Any issues found by others?

Thanks!
I was afraid that this would be the case.
Over here, it is quite the opposite.
We see lots of factory racks and very few of the Safety designs and others as they just are not sold by anyone here.
In Oz, you are spoilt for choice as those blokes use roof racks! I have a serious basket on the 85 and have used it extensively whilst camping
in the Bush. (Sadly, many of our fave spots are getting a fiery makeover at present......

I like the minimalist, well fitted look of the factory racks, but second the thoughts on their slightly curved aspect.
The solution I found was to use a 4 in dia ethyfoam "Pool Noodle" cut into 1 ft lengths and slit up one side.
These effectively clamp over the side bars and allow large flat things to ride very securely.
You can get a Yakima system here with flat bars for like 850.00 Yikes!
Oh, I got my first rack several years ago off eBay for 250 bucks, with freight to Hawaii.
Just recently got a like new one from the breakers for $27.00 (Got a beautiful bull bar for 35 bucks from the same car!)

Now to find some quality rubber sheet to make up some new fitted rubbers............

Heck!
I will settle for Unicorn Poop if I can find it!
TC

Getting ready to place the factory roof rack on the Borrego, and noticed the rubber gaskets are a bit knackered.
I have had a look and cannot seem to find any for sale.......nor the part number for that matter.
Any ideas?
Cheers!
Tom

Annnnd on to the Borrego.......
I re sprayed the "Pattern baldness" on the roof either side of the sun roof. Looks great again. The rest of the paint is in good nick.
I had re finished an factory bull bar obtained for the princely sum of 25 bucks from the breakers by cleaning and spraying with
flexible Polyurethane "Bed Liner" in a rattle can. Good as new.
This was installed on the freshly sprayed bumper and on the Borrego.......Then un installed, disassembled to insert the 2 friggin
spacers!!!!! (I know better too!). Back together, and it looks really nice!
Tomorrow, the factory roof rack goes on!
Kinda hate to sell the Borrego, as it is a super clean example of it's type. (If some clod had not removed the EAS it would be perfect!)
Oh well, Wife says one or the other of the 02's goes. (And Bolt stays. End argument!) Besides, now with the soon to be restored
1950 Willys Jeep in the barn, it's a bit tight.....

New EBC Stage 4 Rotors for the front on Bolt. (Standard disks for the rear)
For some bizzare reason, these were listed on Amazon for $39.95 with free shipping......One set left......
I thought it sounded too good to be true, and ordered them anyway along with some green EBC pads.......WCPGW?
They showed up 3 days early and are as advertised! Looked to buy about 6 more sets for friends, only to find they are now $305.24!
I had a slightly warped LF rotor. These new disks and pads are terrific!
Nice to win one occasionallly!
REALLY nice that it is still possible to get brake parts that are made in UK or USA. NOT CHINA!
Now, how to address the very slight weep of coolant that is coming from the left rear of the engine (probably head gasket)...sighhhhhhh
Happy motoring!
Tom
PS: How long and at what temperature do you bake your filters? Mine always come out tough no matter how I cook them! (HP sauce works well as a topping)

Happy New Year!!
Sincerely wishing all the best to you all from the Sacramento Delta!
Cheers,
Tom