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 Posted: Mon Feb 27, 2017 9:03 am |
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Joined: Apr 15, 2012
Posts: 23
Trade Rating: 0
Location: uk
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Hi guys,
Just changed the head gasket on my wife's 206, it's a 1.4i 8v. Problem has been a long term oil leak from the front of the head and more recently water in No.1 cylinder (gearbox end). Torqued all the headbolts in sequence to 20nm, then +240deg in the same sequence. Everything went well except for the last headbolt which got to about 140deg and would not go further without what I believe would have been destructive force accompanied by lots of extreme noise and judder. Anyway my problem is where do I go from here? Do I leave it alone? Do I remove the bolt and try again? If so to what torque and angle? The head is pretty much pulled down so different start position now. Perhaps I'm worrying too much.
Any advice, ideas or comments would be appreciated.
Bill.
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Posted: Mon Feb 27, 2017 11:38 am |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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Are they NEW virgin head bolts or are you reusing the old ones?
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Mon Feb 27, 2017 12:05 pm |
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Joined: Apr 15, 2012
Posts: 23
Trade Rating: 0
Location: uk
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Hi,
They are the original bolts, all well in spec, threads cleaned, engine oil on thread and under cap. block threads chased and cleaned. I appreciate that this is a friction problem with this one bolt, could be bolt or block threads or both. With hindsight I would have used new bolts, I need to put this down as a learning exercise and work out how to proceed from the point I'm at.
Bill
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Posted: Mon Feb 27, 2017 1:13 pm |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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Could always nibble a few mm of the bottom of that bolt with Mr hacksaw
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Tue Feb 28, 2017 4:44 pm |
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Joined: Jun 19, 2010
Posts: 1600
Trade Rating: +4
Location: South Bucks
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Not something down the bolt hole? Swarf, dirt, etc?
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| Down to just the 1.4 HDi. Cayman Green 2.0i CC sold. | |
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Posted: Tue Feb 28, 2017 5:11 pm |
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Joined: Apr 15, 2012
Posts: 23
Trade Rating: 0
Location: uk
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No nothing down the bolt hole
Bill
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Posted: Tue Feb 28, 2017 6:45 pm |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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I would never reuse stretch bolts even if they are within spec. New bolts cost very little.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Tue Feb 28, 2017 7:59 pm |
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Joined: Apr 15, 2012
Posts: 23
Trade Rating: 0
Location: uk
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No need to convince me but what's done is done, I need to work out the best way to recover the situation.
Bill
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