Truck Service / Clutch Servo Repair.

International N - 1630 AKA Nissan UD

kM = 73,988

CMA 86H 00138 

6YS 311

 Engine FD6T 5654  cm^3

Fault : Batteries arent holding charge.

They are about 5 years Old and have been dead flat a cuppla times. Probably time to replace. 

Fixed.

Fault : No Clutch.

Symptoms : Depress clutch pedal to engage point meets no resistance. Sudden rush of air and pedal kicks back up till near full excursion. Can repeat with no change of symptoms. 

Removed  Servo Unit and the Piston Shuttle  actuator was jammed hard at full actuation.

Solution - Replace unit. Clean and lube Original for spare ? Nah .. ditch it.

New assembly ordered.

Servo / Boost Unit  looks very similar to https://www.youtube.com/watch?v=PGhNi2Zj57o

 http://www.brettstruck.com/c/272947/1/clutch-booster-nissan-ud.html

15770.001 CLUTCH BOOSTER 70MM UNIVERSAL ISUZU MITSUBISHI FUSO UD NISSAN

 Ph: 02 4388-4994

 

Note the hose in the above photo. It was broken in the failure unit. It runs from some sort of vent in the hydraulic system to the boot on the piston driven by the pneumatic ram.  My guess is that it drizzles brake fluid into the bellows to keep the seals in the bore lubricated / prevent corrosion.

 

Banjo fitting in the hydraulic side leaks.  

Proper copper washers didnt seal ?? !! 

1 x O dia 23 mm. inner 15 mm 

1 x O dia 23 mm.  inner. 12 mm 

Had Aluminum washers machined up and fitted . Really seriously torqued to eliminate leaks.  This doesn't make sense.

 

Still not getting pressure on the clutch pedal. Brake fluid wont deliver any pressure to slave unit.

 Ordered new Master Cylinder.

https://www.donkyattqld.com.au/master-cyl-assy-cmf87-clg87

Fitted - Bled . 

Fault fixed.  - That sucked..... That . Really . Sucked. 

And just to add a little piquancy - during the 3 weeks it took me to effect that repair the truck was slowly sinking into the ground. 

 

 

 

 

 

 

 

Fuel filler - Stolen 

14200.003 FUEL CAP SCREW ON FE6 FM6 NPR NPS      60MM ???  SKU: 14200.003-

No longer available. The current part looks exactly the same but has a 60 mm thread.  

Can get correct part # from Brettstruck. Probably have to find a wreaker -  or steal one from someone else.  :-(

2mm pitch. 51.5 mms dia.

 

 

Service 

 

Oil capacity  15 litres   - DONE.

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FILTER  Donaldson P550073 

Fuel Filter Fleetguard FF5114

 

Darwin

152 Coonawarra Rd, Winnellie, NT 0820, Australia

08 8947 1627

Email: darwin@maxiparts.com.au

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A/C

Address

12 Travers St, Coconut Grove
0812 N.T

Contacts

Phone: 08 89927703
Email: acarr.darwin@gmail.com