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| the_scotsman |
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frankieh wrote: I would never have put metal dowels in there.. How will that Araldite be after 8 months of being soaked in boiling oil? If it breaks up.. the dowels will be floating around your engine... might get caught in a chain or the aux sprocket etc etc.... How on earth will they get out? There's no way they can physically escape from the holes. |
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| frankieh |
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dude, the guide has a chain sliding at very high speed beside it and that guide has to be vibrating like crazy from it... also the plastic would have changed thermally to some degree with the heat...
Then again, it's bolted at the top as well so maybe it will be ok... guess you'll know sooner or later. by the same token, if you put them in really tight.. the plastic is brittle and metal expands with heat... just saying there is the potential for misadventure. |
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| the_scotsman |
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frankieh wrote: dude, the guide has a chain sliding at very high speed beside it and that guide has to be vibrating like crazy from it... also the plastic would have changed thermally to some degree with the heat... Then again, it's bolted at the top as well so maybe it will be ok... guess you'll know sooner or later. by the same token, if you put them in really tight.. the plastic is brittle and metal expands with heat... just saying there is the potential for misadventure. Yea I realise what your saying. They aren't in tight...I left some play (which is taken up by the araldite). And that was my thinking..the bolt will still hold it at the top. The chain doesn't rub directly on this part either. Tere's only a few mm of play in this part of the guide to so I figured I'd be safe. |
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| undertow |
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I considered gluing mine but decided to leave it broken and live with the rattle. Will be interesting to see how the repaired guide goes. Does it support the weight of the cam sprocket ok? Also which type of araldite did you use? The Selleys 5 minute one is only good to about 70 degrees before it softens IIRC; the "high strength" one to about 90 degrees which should be ok... High temp epoxies like JB Weld and Qwik-steel are good to 250+ degrees if you beleive the manufacturers.
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| the_scotsman |
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undertow wrote: I considered gluing mine but decided to leave it broken and live with the rattle. Will be interesting to see how the repaired guide goes. Does it support the weight of the cam sprocket ok? Also which type of araldite did you use? The Selleys 5 minute one is only good to about 70 degrees before it softens IIRC; the "high strength" one to about 90 degrees which should be ok... High temp epoxies like JB Weld and Qwik-steel are good to 250+ degrees if you beleive the manufacturers. That part of the giuide doesn't really support the weight of the cam sprocket...only some of the chain tension, but it's not bad from what I can see. I just used high strength Araldite...even though it says it starts to soften at 60C then hardens again as it cools. Will soon find out I guess...even if the glue fails...the pins should hold it with little problem. |
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| fiend |
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The rocker cover gets over 90 degrees and the head at the inlet does 90 degrees Celsius after fifteen minutes on the motorway.
Good job on the repair mate, using the joinery skills like that... But you could have left it as is without a problem too... I'm putting my money on your repair failing, the little metal bits falling into the sump without doing any damage, and you not noticing a thing for many happy miles. ALFY --- My first timing cover looked like this... Fixed without removal...
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| locknut |
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How the hell did that hole get there?
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| fiend |
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Was there when I bought the car (it seized the first time it saw a motorway so the guy gave me $1000 back, meaning it cost me $1000 and I let it cool down, fixed a hose or two, put in a radiator out my wrecked one and drove it for 50,000km...)
I would say someone had been working on motor and left a tool in there which took off like a rocket and cleaned the timing mark completely off the timing cover... Sad really - No end of silly remarks from Holden owners about the "Ford Blood" left on their driveways. I told them it was "Ford piss" and left it at that. Much better with the hole plugged up mind you... |
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| the_scotsman |
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Well, she's all back together and purring like a kitten...no noise at all from the chain, so we'll see how long it stays that way
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| PRO-4.0L |
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Im having the same trouble on my AU with the sump on and trying to put the timing cover back on
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| James84 |
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my timing chain appears to be near on non existent.
last time i had the rocker cover off, i could barely see it. its been like that for god knows how long. iv been clocking up a lot of K's lately too. maybe 30-40000ks since iv had the car, and had no troubles. im not going to bother fixing it until it breaks. and when it does, ill drop another engine in. |
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