what does the switch do?

fish · Post by **fish** » Fri Jul 27, 2007 2:31 am

ok.
there is a switch on the dash of my 89 bighorn, and i want to know what its for.

it has a picture of a motor, with wat looks like a coil in it.
any ideas......

PigFmr · Post by **PigFmr** » Fri Jul 27, 2007 7:03 am

some of these bighorn's have a sump warmer,my farther in law had one his bighorn,
vince

privitepiles · Post by **privitepiles** » Fri Jul 27, 2007 7:43 am

http://clubisuzu.proboards29.com/index. ... 1115111689

Sorry for using different site but hope this helps

Aaron

fish · Post by **fish** » Fri Jul 27, 2007 11:42 am

huh.. there you go, it restricts the exaust and changes the timing
to help on cold starts.

kdub104 · Post by **kdub104** » Fri Jul 27, 2007 3:35 pm

a sump warmer?

you are having us on aernt ya?

mercutio · Post by **mercutio** » Fri Jul 27, 2007 5:29 pm

i few japanes trucks hae those on them
it helps to warm the engine up to operating temperature faster in trucks all the usually do is close the exhaust brake

PigFmr · Post by **PigFmr** » Fri Jul 27, 2007 6:24 pm

kdub104 wrote:a sump warmer?

you are having us on aernt ya?

na not joking, well his bighorn was badged as a chev,two of our trucks have a sump warmers and one you can plug into the mains at nite to keep engine warm think its the Hino,

dazza85 · Post by **dazza85** » Fri Jul 27, 2007 7:31 pm

huh.. there you go, it restricts the exhaust and changes the timing
to help on cold starts.huh.. there you go, it restricts the exhaust and changes the timing to help on cold starts.

Exactly
The switch through a controller that has its own temperature sensor on the front of the block operates 2 vacuum valves mounted behind the fuel filter
1 of these operates the timing on the injector pump the second drives a cable control unit mounted above the starter motor. the able from this closes a butterfly valve in the exhaust.
This is designed to heat the motor quicker and reduce exhaust emissions
As the motor warms up it goes back to normal

I am working on setting mine up as an exhaust brake ... not sure yet.
I'm going to try a temporary push button to see how good it is before I try and set up the switch's on the clutch and accelerator.