OH 1418 Dash electrics

[T1 Terry]

Hi Kappy, we thought you must have been on the road or we would have called in as we went past a week or so ago.
The lean, if it isn't bushes or bent suspension items then the springs need to be reset. The tricky part is finding an old skool spring forge works with someone that has the knowledge on how to do the measurements first and then reset the springs to suit.
After many bodgie attempts by various "experts" to sort Brian's Mazda when he owned it, we went to Illawarra Spring and Forge and they did an excellent job of fixing the problem rather than trying to hide it. It is still great now and that was many yrs ago, so if you can find someone who knows what they are doing then it is possible to actually fix the problem.
As far as the oil pressure. You need to fit a mechanical gauge in a T fitting with the electric gauge sender and get a reference of actual pressure to electrical resistance within the sender. This will tell you if it is just a crook sender or if the sender is actually transmitting a varying signal that relates to a certain pressure. Just guessing here but it sounds like the gauge wire is connected to a trouble light type sensor, light on low pressure, light off full signal and that sounds a lot like the reaction the gauge is showing.

T1 Terry

[Kappy]

Update.
An update on the oil pressure saga , today I connected a oil pressure test gauge, when just cranking I reached 5 bar, on starting the gauge registered 4.8 bar , and reaching 6 bar at about 1000 rpm after idling for about 20 minutes the pressure dropped to about 3.8 Bar. Tomorrow I drop the oil and do new filter and test again. Seems oil pressure may be ok, Will drive on tuesday with test gauge in place and see what results....Would seem my sender/ gauge may be faulty.

Bruce Attached is a rough pic of front end

20190302_091739.jpg

Not sure if there is any adjustment there, spoke with a few spring place on Thursday, they only reset. Not remove.

Going to a mob that do that sorta work on Tuesday, seems like the type of thing where someone can easily get burned.

Will see if they can be honest.

Terry Yeah shoulda been on the road ages ago, still have an AF issue with ticker, that needs some clarity.

As far as the oil pressure. You need to fit a mechanical gauge in a T fitting with the electric gauge sender and get a reference of actual pressure to electrical resistance within the sender. This will tell you if it is just a crook sender or if the sender is actually transmitting a varying signal that relates to a certain pressure. Just guessing here but it sounds like the gauge wire is connected to a trouble light type sensor, light on low pressure, light off full signal and that sounds a lot like the reaction the gauge is showing.


I have no idea what you said there

[Kappy]

Hi Terry

When I get mobile I plan to call in the Mannum, still a few things I'm not sure of re Lithium.

[BruceS]

Looks like the connecting links on your anti sway bars can't be adjusted at all.
Are there any on the rear? Might have to go for the reset anyway as you can see the rubber stops have been getting a hiding over rough road.
From experience if you are going to remove the spring packs only do one at a time or you'll struggle to 'roll' the axle and hold it there while assembling again. Typical Benz lean for left hand drive roads. Scrubbing steers too?
Once springs have lost their 'shape' a reset won't last long. Ask how much to make up a new pack for each side with an extra leaf on the left?
Sealey Springworks in Mount Gambier have extensive experience in doing these things as they do all of K&S & Scott's Tspt fleet.
There must be others closer to you?

[BruceS]

https://www.facebook.com/SealeysSpringworks/

Some ***** merchants reset simply by pounding without heat .....
You can do that yourself with a sledgehammer.!!

[T1 Terry]

As far as the oil pressure. You need to fit a mechanical gauge in a T fitting with the electric gauge sender and get a reference of actual pressure to electrical resistance within the sender. This will tell you if it is just a crook sender or if the sender is actually transmitting a varying signal that relates to a certain pressure. Just guessing here but it sounds like the gauge wire is connected to a trouble light type sensor, light on low pressure, light off full signal and that sounds a lot like the reaction the gauge is showing.

I have no idea what you said there

The sender for a pressure gauge will have different resistance readings at each different pressure. You just need to take the resistance reading at that pressure and see if it matches what the gauge is expecting to see. There is a had held device that can dial up these different resistances so when plugged into the gauge you can see if it is working the way it should.

The other bit is about the different types of sensor. A warning light type sensor just has an open or closed position and this would make the gauge swing fully one way or the other and that sounds like what is happening with your gauge.

T1 Terry

[T1 Terry]

https://www.facebook.com/SealeysSpringworks/

Some ***** merchants reset simply by pounding without heat .....
You can do that yourself with a sledgehammer.!!

Without heating in a forge to align all the grains in the steel and then oil quenching, you are just bending the springs and they will straighten out again or snap at the bend line after a very short period.

T1 Terry

[Toolman]

Leave the springs there and add some helper air bags.

[Kappy]

Leave the springs there and add some helper air bags.

That did cross my mind, have no idea where to look.

My search revealed stuff for Land Cruiser and Nissan, not quite suitable for a bus.

So adding airbags would level the bus, Yes.

Would the ride be improved and would that take some pf the strain of the springs.

Setting a so called expert on Tuesday, PH here tomorrow..

[Noggins]

With a few small modifications the air bags for a ford 250 (?) can be made to fit.
The bags sit inside of the chassis and a heavy bracket bolts to the chassis its self.
This is Not like most air bags that sit between the spring and chassis,.
Doing it this way allows the whole movement of the springs before they bottom out on the original stops.

It might need a few mods like boxing out the chassis and changing the axle mountings to made to fit exactly where you need it but it would solve the problems your having as well as give adjustable suspension height and tensions.

Another way of correcting the lean is to swap the springs from left to right ( and right to left. )
I did a similar thing many years ago till I had some ''down time'' and got spring packs made up by Hendersen Springs in Melb.


Ron