Removing and Installing Housing With Heat Exchanger

Removing And Installing Housing With Heat Exchanger

Tools







Preliminary work

Remove complete heater.

Removing housing with heat exchanger












1. Mark the exact installation position of the line in the clips with adhesive strips-arrows A-.
2. Open the clip -arrow B-, take the line out of the clip -arrow C and place aside to the rear.
3. Remove intake muffler with suction line
4. Remove exhaust pipe.







5. Release spring band clamp using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1-a--arrows A and slide it off the flange -arrow B-.
6. Pull down moulded hose from housing -arrow C-.







7. Release the clamp lug -b- and pull out the fuel line from the housing -arrow A-.
8. Unclip the fuel line -arrows B-.
9. Release spring band clamp using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1-a--arrows C and slide it off the flange -arrow D-.







10. Unscrew fastening screws -arrows 3-.
11. Pull out the housing out of the inner hose -2- and take out to the front.







12. Release the inner connector -1- -arrow A- and pull off -arrow B-.
13. Release the outer connector -2- -arrow C- and pull off -arrow D-.

Installing housing with heat exchanger







1. Push on the outer connector -1- -arrow A-, until the locking tabs are felt to engage -arrow B-.
2. Push on inner connector -1- -arrow C-, until the locking tab -arrow D- is felt to engage.


NOTE: Before connecting the water hoses, apply suitable rubber lubricant to the flanges.







3. Connect the housing to the inner water hose -2--arrow A-.
4. Tightly screw the housing to the mount using the fastening screws -arrows 3-. Tightening torque 1.5 ftlb.
5. Push the moulded hose onto the housing -arrow B-.







6. Align the moulded hose by turning it back and forth -arrows A- to be free of tension.

7. Using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 slide the spring band clamp onto the connection -arrow B-.
8. Relieve spring band clamp -arrows C- and secure the hose.







9. Align the hose by turning it back and forth -arrows A- to be free of tension.
10. Using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 slide the spring band clamp onto the connection -arrow B-.
11. Relieve spring band clamp -arrows C- and secure the hose.
12. Place the fuel line on the flange arrow -arrow D- and attach with a new clamp lug -b-.
13. Press fuel line into the retaining clip -arrows E-.

Subsequent work

Installing intake muffler with intake line.

Install complete heater.