M109 Self propelled gun info needed

[Paul Singleton]

http://automotiveenginemechanics.tpu...34-35_30_1.jpg

This might answer a few questions, and create a few more. More here:

http://automotiveenginemechanics.tpu...9-2520-234-35/

[David Herbert]

Pinching this from Paul's post #22 : http://automotiveenginemechanics.tpu...34-35_30_1.jpg

That drawing is clearly marked up as if the whole pack is at the rear of the vehicle driving rear sprockets. M109s, M107 / M110 are front engine / drive so what vehicle is that instalation from ?

Does anyone have a list of vehicles this power pack fitted ?

David

[Paul Singleton]

I have been looking through the manual and it does state that this powertrain is front mounted. Also in the introduction is a picture of the transmission with drive flanges as in Rob’s post. It would seem that this power unit may have been used in more than one type of vehicle.

http://automotiveenginemechanics.tpu...-2520-238-34P/

[Paul Singleton]

Also found this,

https://www.forecastinternational.co...fm?ARC_ID=1147

http://www.tecmotiv.com/tecmotiv/m109_support/

[Malcolm Towrie]

John,
This looks like what you have. It shows the steering, selector, and brake shafts also.

Like the M113, the flange shown for the inboard u-joint will probably slide on the splines into the transmission to give clearance for u-joint removal.

Perhaps the threaded outside diameter on the splined output sleeves in your tranny is for an oil seal holder to seal the flange hub.

Malcolm

M109 transmission.JPG

[rob love]

Originally Posted by Malcolm Towrie

Like the M113, the flange shown for the inboard u-joint will probably slide on the splines into the transmission to give clearance for u-joint removal.
Attachment 101864

The output flanges for the xmsn are secured in place with a bolt and washer, as shown in some of the diagrams I posted. More likely are that the flanges in the final drives will slide in and out as required.

[David Herbert]

Again the drawing in Malcolm's post #39 shows a rear mounted pack. The "right output flange" would be the left one on a front mounted instalation like a M109. I cannot think of a US designed rear drive armoured vehicle of this size and period.

David