Hydraulic Chain Tensioner - Installation For Retrofit
84porsche02Subject:
Hydraulic Chain Tensioner
Part Identifier 1526
Applies To 911
1968-83
Group
15
Key Points Installation kit for retrofitting to 1968-83 Models
C
Number
84-01
May 11, 1984
Hydraulic chain tensioners were introduced with the start of production for the 1984 Model Year. These new chain tensioners may be retrofit to all 1968 and later 911 vehicles by using the following conversion kits:
Installation kit for left chain tensioner Part No. 930.105.911.00
Consists of:
1 cover, left Part No. 930.105.063.08
1 plug N 016.155.3
1 seal N 013.814.2
1 oil hose 930.107.347.01
1 oil hose 930.107.347.02
1 chain tensioner 930.105.058.03
1 seal 999.701.690.40
1 hollow union bolt N 021.073.1
2 seals N 013.807.2
1 coupling nut 900.104.003.02
1 self-tapping ring N 020.825.1
Installation kit for right chain tensioner Part No. 930.105.912.01
Consists of:
1 cover, right Part No. 930.105.064.07
1 oil hose 930.107.348.02
1 oil hose 930.107.348.03
1 chain tensioner 930.105.058.03
1 seal 999.701.690.40
1 hollow union bolt N 021.073.1
2seals N 013.807.2
1 coupling nut 900.104.003.02
1 self-tapping ring N 020.825.1
Installation procedure
Note
The procedure for installing hydraulic chain tensioners is the same as for replacing the nonhydraulic version.
- remove timing case covers -install new hydraulic tensioners in place of original tensioners
CAUTION
The replacement tensioner piston is locked in pressed position with a pin. Remove this pin after installing tensioner.
Note
The chain tensioners each have an oil feed boss which will protrude through bores in the new timing case covers. External oil lines connect to this inlet and a fitting on the new camshaft supply hoses.
- mount O-ring seals on oil feed boss of chain tensioners to provide seal between tensioners and timing case covers
- install new timing case covers
- replace oil supply hoses to camshafts with hoses supplied in kits
Note
On 1968 through 1973 Models, the right side oil supply hose will not be long enough as provided. To correct, install adaptor block where inboard end of hose connects to case.
Additional parts required
1 - adaptor block Part No. 911.107.704.00
2 - seal ring N 013.812.5
3 - hollow union bolt 911.107.709.01
4 - threaded plug 900.219.009.30
5 - seal ring 900.123.009.20
- install oil feed lines from fittings on camshaft supply hoses to inlets of chain tensioners
- when all reassembly is complete, run engine and check for leaks
CAUTION
Pan numbers listed are for reference only. Always consult with the Parts Dept. for latest information.