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got a rattly engine, what would you do

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Old Jun 20th, 2018, 22:13   #21
AndyV7o
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Lol! Jewellery!
Rattley jewellery...

Btw theres a poss it could be cam-wear, if its been (as often is the case I have noted since delving into the Volvo world) incirrectly filled with B5 all or most of its life. There used to be a family cavalier mk2 which sounded horribly tappety, the cam was worn thus the followers keft a gap at rest, couldnt be rectified without a new cam, it was an old car, so it was left-be as performance-wise it was very strong still. The car was bought once rusted through on the basis of its good (albeit noisy) engine for transplant in another cav!
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Old Jun 20th, 2018, 22:16   #22
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Quote:
Originally Posted by petey View Post
Just to mention, is it possible it’s a dribbling injector?
At the risk of teaching mother’s mother to pull a vacuum on chicken ovulations, a tappet that’s noisy will be noisy regardless of speed and engine load. An injector thats dirty will produce a very similar noise, but only sounds as the engine accelerates, as soon as you let off the accelerator, the noise disappears instantly. On overrun it’ll go quiet totally until the engine reaches idle...
On another thread, iirc, he investigated em, and put new seals in, though I did ask if seats were re-cut, sometimes they'll not seal again unless re-cut, so will blow again...
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Old Jun 20th, 2018, 22:44   #23
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Injectors are sealed, checked them this morning and there’s no sign of blow past at the seals. It did originally have 3 that where leaking. I’ve even swapped the complete set from my old D5 that ran quietly, the rattle didn’t change, which rules out the physical injector. Although I was convinced it was an injector or possible manifold blow, there’s no sign of either.

At initial start up (something) there’s a definite rapper noise for a few seconds before it quietens down. Can still hear a distinct rattle on the rocker cover around the 3&4 cylinders.
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Old Jun 20th, 2018, 23:23   #24
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Hi is the noise coming more from the number 5 end,
Thanks Dave
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Old Jun 20th, 2018, 23:27   #25
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Hi is the noise coming more from the number 5 end,
Thanks Dave
No, more central. Sounds to be around 3&4 cylinders
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Old Jun 20th, 2018, 23:30   #26
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ok, I was thinking it could be the gears or pump at the end,
Thanks Dave
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Old Jun 21st, 2018, 12:52   #27
reggit
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Decide to buy an injector seat reaming tool just in case there is a little blowpast somewhere. Was only £15 and will come in handy in the future I’m sure.
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Old Jun 21st, 2018, 13:59   #28
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Cool.
Might have a punt myself if they can be got for that... Have to do a seal on the old scenic before I can sell it...
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Old Jun 22nd, 2018, 19:53   #29
reggit
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3rd oil change in 1000 miles - this engine must be really clean inside now!

Now got B4 fuchs in it, warmed it up and added the recommended snake oil then just had a 5 mile run locally. Wil have to see what happens over time. It may be my imagination - probably is - but seems a better under acceleration now. Has a definite tapping at idle though. Think I'm probably expecting too much from an old diesel engine. ;-)

I was seriously aiming at 5 this morning, now now veering towards 1.
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Old Jun 22nd, 2018, 21:13   #30
AndyV7o
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See how ya go fella!
Well, injector seals aside, it can definitely only be mechanical now...
Was quick delivery on the oil! Or did you find it locally?

The very last sentence has me baffled though, 5? 1?
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