3408 1/16 detail questions

[69A-CAR]

Hello all,

I have been working on a 1/16 scale W900 and I want to plumb the power steering and the remote (oil) filters. Can anyone help me with a good link or pictures?? I get the basic idea for the steering with the remote resevoir, I don't know why there are 3 fittings on it?

Here is how I think it should be:

hose from resevoir to pump (feed)

hose from pump to steering box (presure)

return hose from steering box to resevoir (return)

So why 3 fittings on the tank? Does the motor have 2 pumps?

Any help would be appreciated!

Here are a few moch-up pics.

I know the table is a horrible mess!

Thanks, Mark

[69A-CAR]

Thank you, now I just need to figure out where the PS pump is on this motor?? Is it gear driven off the back with the air compressor??

Thanks, Mark

[plastic trucker]

Thank you, now I just need to figure out where the PS pump is on this motor?? Is it gear driven off the back with the air compressor??

Thanks, Mark

It`s the blue pump in front of the compressor in the second picture. I don`t know why there are three lines on the pump but when it went out on my truck we replace it and had to add the third line besause the main line got hot and blistered the line. The old pump only had two lines.

[Madd Trucker]

May be this will help you on detailing your motor

http://public.fotki.com/modeltrucks25thscale/model_magazine_articles/car_modeller/cm04_nov_1990_cater/

[69A-CAR]

Thanks for the good info guys, I never thought to search old Ken Smith articles. I think I am going to back burner this one until I can get some better pics. I wish I knew of a local 3408 KW, but I can't think of any. I might have to hit the E-town show.

Mark

[69A-CAR]

Well, I don't have a good detail shot of the pump, but, it is on the rear of the motor. I suspected this, but I didn't find a pic until now.

http://www.truckpaper.com/listingsdetail/detail.aspx?OHID=2374795&

Might not get 100% on this build, but I will get it better next time.

Mark

[truckabilly]

Hello,

I am new to this forum. Before I post any of my builds, I would like to help with the PS pump location on CAT 3408. I am dealing with the same problem, though in 1/25 scale. I have been hunting for pictures of 3408 on the net and I think I found something usefull. This one is installed in KW I believe. You can see the lines from the PS reservoir and the steering box dissapear somewhere behind the engine.

I also found this pic with the air compressor on the right and something on the left. The "something" might be a power steering pump. But I am not sure if the engine is a truck engine. The cluth is a bit different.

Another image probably proving the PS pump is rear located is this Freightliner COE. There is a blue painted air compressor clearly visible in the pic. Just behind it I spy another small blue box which may be a part of the air compressor or .... the PS pump.

But... to make things a little bit more complicated, this is a KW advertisement of 1970s showing the back of the engine. And... no PS pump.

And finally there is a blue box mounted on the front cover of the engine. A power steering pump? I bet.

My conclusion is that the PS pump location depended on the truck in which the engine was installed. Could be front mounted, could be rear mounted. But I am no CAT expert. It is up to you what you make out of the pics. Hope it helped some.

Jarda

(short for Jaroslav)

[69A-CAR]

Hello, Thank you for the pictures. It is on the back of the 3408, at least in W900 applications. The other example in the bottom picture was probably a different application, and the Cat photo was maybe just a generic engine.

Mark