Valve clearances: not using Torque wrench?

J

Jamesuk

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we have just had the valve clearances checked on the boat and I noticed that he did not ask for the torque wrench that we have on board for that job and when I got back to the boat he'd already put it back together shall I get him to redo it to the torque settings in the manual?

Tightening torque cylinder head bolts 88 Nm

Cheers
 
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pvb said:
See also http://www.ybw.com/forums/showthread.php?421112-Do-you-service-your-own-(diesel)-engine
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Great thread. Thanks pvb

I do oil Change, filters, fuel filters, fuel pump, painting, air filter, gearbox oil, belts, impeller, basic routine stuff. I stopped at valve Clearance because I read, get it wrong and you mess up the engine.

If anyone is around in plymouth next week to run through it but also if your just bored and want some rest from YBW and flex your skills to do some
Service work on something new I can offer Cappuccino and pancakes :-)

Just pm me :-)
 
macd said:
Incidentally, if he had used your torque wrench, that may have been a poor sign. He knows nothing of its history and would have no way of knowing its accuracy.
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Plus, what the hell is a professional mechanic doing having to borrow tools from his customers?

Pete
 
parsifal said:
He didn't.
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Hypothetically he would have had to use ours as he didn't have one with him.

I always have to allow access to tools to engineers on the boats especially riggers they are the worst! They love their 'adjustable wrench'. I think they charged £100 per hour to scuff up the bottles screws when it slipped while Unscrewing it: That was emotional! we carry a long 27mm and 32mm spanner just for the riggers now. Although I now regrease the lowers now as it's easier.

We release the main pressure out at sea then arrive on the dock to simple unscrew them, clean then regrease. Head back to se on a calm day and tighten them up again.
 
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Jamesuk said:
Hypothetically he would have had to use ours as he didn't have one with him.

I always have to allow access to tools to engineers on the boats especially riggers they are the worst! They love their 'adjustable wrench'. I think they charged £100 per hour to scuff up the bottles screws when it slipped while Unscrewing it: That was emotional! we carry a long 27mm and 32mm spanner just for the riggers now. Although I now regrease the lowers now as it's easier.

We release the main pressure out at sea then arrive on the dock to simple unscrew them, clean then regrease. Head back to se on a calm day and tighten them up again.
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Well quite frankly, any one as careful and conscientious as you obviously are would make a very good engineer. If you did your own maintenance and repairs you'd probably do as good a job, if not better, than many of the people you employ; and you'd have more confidence that the work had been done properly.

:encouragement:
 
VicMallows said:
Last time I checked or adjusted valve clearances was on an HA Viva. My 1984 BUKH20 isn't that much newer and I have never even taken the rocker-box cover off. Perhaps that's the secret to its long life. :cool:
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Those were the days ...... when you could adjust the clearances on a car with a screwdriver and spanner. These days, if they're adjustable at all, they're bucket and shim. I like the fact that they are quiet and rarely go out of adjustment but if they do need adjusting you have to buy a different special tool for every car to hold the bucket down whilst you extract the shim. Perhaps I should try and hire the tool?

Richard
 
RichardS said:
Those were the days ...... when you could adjust the clearances on a car with a screwdriver and spanner. These days, if they're adjustable at all, they're bucket and shim. I like the fact that they are quiet and rarely go out of adjustment but if they do need adjusting you have to buy a different special tool for every car to hold the bucket down whilst you extract the shim. Perhaps I should try and hire the tool?

Richard
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On a couple of Rovers I had you had to remove the cam shaft, then the buckets to get at the shims. IIRC the camshaft bearings were held by the cylinder head bolts so you normally only did it during cylinder head overhauls.
 
VicMallows said:
Last time I checked or adjusted valve clearances was on an HA Viva.
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I loathed those. As the adjustment was effected by a nut on the stud that located the pressed steel rocker, if you used a socket it could press on the side of the rocker and give you a false reading.
After setting them all you could go back through them and find half of them still wrong. probably why so may Vivas had clattery valve gear. At least noisy tappets don't burn out valves.
 
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