SAS8
RevISK
SILVER Star
Build RevISK’s ‘80 FJ40 - A Girl Named Norman
- Thread starter RevISK
- Start date
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RevISK
SILVER Star
- Thread starter
- #744
Back with the squeal/jingle/whistle/?/noise mystery…
It’s been pretty cold here in central Texas (for central Texas anyway) with this morning clocking in at a balmy 35* when I drove my son the few miles to school. The noise is gone, yesterday (a bit warmer) and today, no noise.
Why would it be there when warm and not cold?
For your time and attention, I present you with an unrelated picture of me taking my camp trailer for a spin.
It’s been pretty cold here in central Texas (for central Texas anyway) with this morning clocking in at a balmy 35* when I drove my son the few miles to school. The noise is gone, yesterday (a bit warmer) and today, no noise.
Why would it be there when warm and not cold?
For your time and attention, I present you with an unrelated picture of me taking my camp trailer for a spin.
Cold gear lube is thicker. You'd probably have to drive it longer to heat up the lube.
Sounds like a good excuse to drive the 40. I wouldn't consider it a theory. Thicker lube fills the loose tolerances of worn bearings.
Next you’ll tell me the earth is round…
Maybe, in a round about way!
Face it RevISK, these trucks are possessed and do weird #$% just to confuse us. Hopefully the quietness will continue for now on! Loving the trailer, you got all the cool toys. I remember riding in one of those as a child for hours to the campsite. Can't do that anymore!
Sometimes things need to seat/wear in to find home. How noisy is it? Find a hill nearby, put transfer in neutral and roll down the hill a ways in gear with engine off listen. Put tranny in N and transfer in 2H listen again and compare. Maybe a hundred or 2 miles at different speed and gears, loads. Then maybe change the oils and use a magnet on a stick to fish around in the cases lower end. Look for glitter in the oil.
RevISK
SILVER Star
- Thread starter
- #753
When it’s happening, it’s noisy enough to occupy my attention.
To recap:
- it “turns on” almost exactly at 2,500 rpm
- only under load
- immediately cuts out with the depression of the clutch
- not present when around 45* and below
- no performance issues to note
I’ll see if I can replicate any of your suggestions.
Thanks for chiming in Charlie
POPO AGIE
SILVER Star
Mine use to be noisy when starting at -40 F and sounded kind of like the PS belt slipping unit it warmed up. I had to put the transfer case in neutral and put the transmission in gear and feather the clutch unit it would not die and was able to idle while it warmed up. But then again it has been a long time since I had to get a manual running at -40 F.
Did that exact process in 1976..Fairfax, Vt….-52F. A real freaky week of weather.,,then I’d let it idle15 minutes or so to get the metal warm enough to warm the oils. The shift cane was ridiculously hard to move
Thanks for the memories!!
Thanks for the memories!!
It’s been 23 plus hours.
Assuming you’ve had more than sufficient time to rebuild the entire drivetrain and re-tin the barn roof..
“F1 Drive to Survive” - Netflix.
In your spare time.
Assuming you’ve had more than sufficient time to rebuild the entire drivetrain and re-tin the barn roof..
“F1 Drive to Survive” - Netflix.
In your spare time.
RevISK
SILVER Star
- Thread starter
- #757
“… plus hours” is right…It’s been 23 plus hours.
Assuming you’ve had more than sufficient time to rebuild the entire drivetrain and re-tin the barn roof..
“F1 Drive to Survive” - Netflix.
I don’t know what is going on with this girl. Driving home from picking the boy up the sound was way more faint. Mid-60’s and slightly drizzly.
She’s tucked up in the barn until this rain spell passes, though I may go crawl around with the spiders and see if I can come any closer to an “Aha!” moment.
MatthewMcD
SILVER Star
I'll be out and about this weekend if you want a spare ear.
Sounds like something found in a Subaru.