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01-18-07, 02:19 PM
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#1 (permalink)
| | Guy Fawkes Lives!
Join Date: Jan 2006 Location: St. Louis, MO
Posts: 1,088
| steam hissing sound with block heater?
I know there is a block heater thread that isn't too old, but I thought a new thread was in order as this is now a possible problem question, rather than general discussion.
I've had a block heater on my 80 since I bought it new in '96 and I use it pretty regularly in the winter month(s). When poking my head around the engine bay recently while the block heater was plugged in, I noticed a fairly loud steam hissing sound. Its loud enough to hear standing next to the cruiser with the hood closed when the garage is silent at night.
I couldn't pinpoint the source of the sound. Any idea what is causing this and if it is normal?
I know, probably early warning that my HG is about to go  . Maybe I'll just pull the engine and do a complete rebuild as PM
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1996 FZJ80 (original owner) Less Stuff than WFD175
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01-18-07, 03:59 PM
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#2 (permalink)
| | Parts Geek, M1 Mechanic
Join Date: Mar 2003 Location: Herding cats.
Posts: 15,148
| The one in my Cummins gurgles a bit. I believe what you describe is normal.
__________________ Original owner 93 FZJ80,locked,blown,water/methanol injected(like a WWII fighter aircraft),lifted,winched,snorkeled,slidered,Sleeed ,moneypit. Balanced on a pin head. 95 FZJ80 trail truck (hers), 94 FZJ80 320K with a knock and a lumpy old Dodge car.   http://i487.photobucket.com/albums/r...Gastrap063.jpg http://i487.photobucket.com/albums/r...frifles004.jpg | 
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01-18-07, 04:02 PM
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#3 (permalink)
| | Forum Lifer
Join Date: Aug 2003
Posts: 7,679
| Mine does the same. Simply a boundary layer of water on the hot element that's near boiling. A pot of water on the stove makes the same sound before it boils. I think it's actually the sound of the tiny bubbles collapsing - a form of cavitation.
DougM
__________________ Buy Head Gasket DVD for you OR for your mechanic HERE
'93 FZJ since new, 2.2kw starter, Revo 275s (Michelin Alpins in winter), locked, big Hellas, rr fog, rr flood, rr Airlift, synthetics, ARB bullbar. 97 FZJ - exact same stuff but Michelin X-Ice in winter. | |
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01-18-07, 07:35 PM
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#4 (permalink)
| | Forum Regular
Join Date: Jul 2006 Location: Great Falls Montana
Posts: 59
| I have had this sound from a number of vehicles with block heaters. The sound has ranged from having to open the hood to hear it, to hearing it from a couple of feet away. Has never been a problem.
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94 FJZ80, Bought 5/06, 130K miles all stock. Semi floater rear axle.
Added ARB non-winch front bumper, OME 2.5" lift - heavy front & medium back. Aussie Lockers. MaxLumens headlights, Slee headlight harness, George's LED inside lights
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01-18-07, 11:28 PM
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#5 (permalink)
| | Site Addict
Join Date: Jul 2006 Location: Back downtown
Posts: 1,858
| Block heater questions? Ask a Canadian.
Totally normal.
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'94 lockered FZJ80, '72 Triumph Trident T150V
"Everything is stupid"
"holy fuck balls" - raydouble
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01-19-07, 12:50 PM
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#6 (permalink)
| | 250+ Club
Join Date: May 2004
Posts: 357
| CDan - can you still get OEM block heaters?
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1994 JDM Surf RHD
1995 FZJ80 - Factory Lockers, CDL switch and ARB bumper
2002 Tacoma Double Cab 4x4 TRD - National Springs Add-a-Leaf
1990 4x4 Short Bed Pickup - Farm Duty in the Ozarks
Location - Okinawa, Japan
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01-19-07, 01:47 PM
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#7 (permalink)
| | Parts Geek, M1 Mechanic
Join Date: Mar 2003 Location: Herding cats.
Posts: 15,148
| No.
They have been discontinued for several years.
__________________ Original owner 93 FZJ80,locked,blown,water/methanol injected(like a WWII fighter aircraft),lifted,winched,snorkeled,slidered,Sleeed ,moneypit. Balanced on a pin head. 95 FZJ80 trail truck (hers), 94 FZJ80 320K with a knock and a lumpy old Dodge car. http://i487.photobucket.com/albums/r...Gastrap063.jpg http://i487.photobucket.com/albums/r...frifles004.jpg | |
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01-19-07, 04:39 PM
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#8 (permalink)
| | Guy Fawkes Lives!
Join Date: Jan 2006 Location: St. Louis, MO
Posts: 1,088
| Thanks all for the comforting info (I guess I can sleep tonight  )
I'm in the process of ordering a block heater from a Canadian on ebay - looks like the numbers match correctly as listed in the other block heater thread.
thanks again!
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1996 FZJ80 (original owner) Less Stuff than WFD175
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