Turboman
Mab An Gov
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Worth getting another one. Teng Tools one from Screwfix are about £20.
Bad knock under load
- Thread starter blue beasty
- Start date
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Worth getting another one. Teng Tools one from Screwfix are about £20.
blue beasty
Leaks an prone to bits dropping off
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I did but I'll admit I'm wondering how thorough I was. I'll be checking everything twice before it goes back together that's for sure.
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And check there is no muck in the bottom of the bolt holes which could stop the bolt clamping the head fully even though it is torqued fully.
Turboman
Mab An Gov
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Bit of oil or water in the bottom can crack the block by hydraulic action when the bolts are tightened.
Thor1950
Well-Known Member
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if there is stuff at the bottom of the hole, you are screwed. a bottoming tap is what you need, and a air hose to blow stuff out of the holes
Turboman
Mab An Gov
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If the threads are bad, you need a tap. If they are OK, I just roll up a lint free rag, and poke it down the holes. If the rag is clean and dry to start off with, you can see if it has absorbed any oil or water.
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I spend hours cleaning blind threaded holes on the old bike engines I rebuild. Usually digging out ancient Hermetite (yeah, that old) with long pointy things and compressed air. And checking screw & bolt lengths to ensure they do clamp properly when tightened. Surprising how a leaky old engine can be made gas and oil tight when care is taken.
Thor1950
Well-Known Member
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What I have seen and experienced is the last few thousandth of thread depth is where the issue will occur. making the bolt bottom out when doing the final torque of the head
Turboman
Mab An Gov
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It can happen, but shouldn't on a properly designed and made engine.
Thor1950
Well-Known Member
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are you saying land rover are proper engines
Turboman
Mab An Gov
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I have changed a lot of LR head gaskets, mostly on older engines, and not seen a problem with bolt grounding.
I have heard it can be an issue on some Tdi engines.
I actually like the landrover petrol engines, most of the diesels I don't think are so great. But they are adequate for high mileages if carefully maintained and serviced.
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OK, but we've got landy engines, not something built in a jet propulsion lab or a jap car factory.
Turboman
Mab An Gov
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See post 71. They are adequate, although maybe not as good as a Perkins, Cummins, or Gardner. Not really had any problems with the many I have owned and operated.
Yep, me too !! - got two - excellent pieces of kit... though I'm not sure you can get one for £20
............
Turboman
Mab An Gov
- Posts
- 60,151
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- Lathrowda, Kernow
I like Teng Tools, always found them strong and good value, and they honour their lifetime guarantee even if you have abused the tool.
Turboman
Mab An Gov
- Posts
- 60,151
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- Lathrowda, Kernow
Yep, me too !! - got two - excellent pieces of kit... though I'm not sure you can get one for £20
Apologies, you are right. Just checked the Screwfix site. Magnusson torque wrench £21.95, sure that would be adequate for BB. Teng Tools half inch drive is 52 quid, which still isn't a lot of money.
blue beasty
Leaks an prone to bits dropping off
- Posts
- 63,112
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- Gloucestercotshirewolds
Doesn't give a torque range for the Magnusson but I'll check it out when I can get a lift into town.
Turboman
Mab An Gov
- Posts
- 60,151
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- Lathrowda, Kernow
Borrow mine if you want to come and get it. It is old, but expensive, and it goes up to 200 ft/lbs.
blue beasty
Leaks an prone to bits dropping off
- Posts
- 63,112
- Location
- Gloucestercotshirewolds
Had a quick look on the way to work this morning. The head is true but there is a slight dip on the block, maybe 2 thou between cyls 3 & 4 and slightly less between 1 & 2.
