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Author Topic: Head bolts torque  (Read 2137 times)
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rogerelias
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Posts: 951


MY 1600HF IN HEARTBEAT GARAGE


« on: 03 February, 2017, 10:45:24 PM »

Hello all. whats the torque settings for the cylinder head bolts on a 1600 HF , i have changed them for allen head bolts, seem to remember Peter Gerrish doing this mod so you can torque them down a little more.
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FULVIA 1600HF LUSSO
1958 VELOCETTE MAC
Triumph Bonneville t120v 1972
1968 MGC ROADSTER
1958 Series 2 Appia berlina
Jaydub
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Posts: 319


« Reply #1 on: 04 February, 2017, 10:56:18 AM »

Hi Roger

Peter suggests 23lb/ft and if with a good quality gasket re tighten in 2 - 3000 miles when you recheck valve clearances. Don`t forget to thoroughly clean out the threads first to stop the bolts bottoming out in the block. He also suggests lightly oiling the mating surfaces. Personally I lightly coat head gaskets on aluminium blocks with copper spray grease to help them seal.
I hope I`m not preaching to the converted.
John
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1600 HF. S2.
lancialulu
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Posts: 4397



« Reply #2 on: 04 February, 2017, 03:22:01 PM »

Use of 12.9 Cap bolts I use 25ft lb in easy stages and return the following day to recheck. This was from Paul Leclerq who like Peter has built many a reliable Fulvia engine. Use the original dowel bolts to locate the head and start gently as per bolt pattern then replace the dowel bolts with the cap bolts...
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1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1988 Delta 1.6GTi
1998 Zeta
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