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Noise like Steam locomotive?

Old Jul 26, 2015 | 08:38 AM
  #31  
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Originally Posted by NickAdams
If it eases the pain of buying a whole set, you'll need a 12 point socket (12mm, if memory serves) to remove the calipers... which of course you will eventually have to do.
Check that.... You're talking about 1/4 inch drive for the rocker cover bolts, and you'll want 1/2 inch drive for the caliper bolts. I use a 35 or 40 year old Craftsman 5/16 12 point 1/4 inch drive socket on my rocker cover bolts. Works perfectly.
 
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Old Jul 26, 2015 | 09:50 AM
  #32  
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Originally Posted by lrguy46
Hi

My 2004 Series 2 Discovery with 4.6 litre V8 has suddenly started making a noise not too distant from a steam locomotive.

It's still running OK (apart from the noise) with no obvious misfiring and the water temperature is normal.

I'm at work and a brief look under the hood seems to imply the noise is on the right side of the engine (looking forward from the rear of the car) and, putting my hand as close as I dare, I could not feel hot gas escaping from the joint with the manifold to the catalytic converter pipe section.

Might it be a manifold to head issue? I won't be able to look at it properly until the weekend...

Thanks for any help

Geoff
What does a steam locomotive sound like? Maybe post a video with sound?
 
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Old Jul 26, 2015 | 12:53 PM
  #33  
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Originally Posted by MPDano
What does a steam locomotive sound like? Maybe post a video with sound?
Hi

There are some pretty good videos on YouTube that demonstrate the sound. I'm in the process of stripping it down, quite a learning curve on this engine, and handicaps include me being almost 70 (bar a few months), not as fit as I was, California temperatures in the high 80's, but using a 12" electric fan next to where I'm working and a huge umbrella, like you use for a garden table, to provide shade from the midday sun!
 
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Old Jul 26, 2015 | 12:58 PM
  #34  
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Originally Posted by NickAdams
Check that.... You're talking about 1/4 inch drive for the rocker cover bolts, and you'll want 1/2 inch drive for the caliper bolts. I use a 35 or 40 year old Craftsman 5/16 12 point 1/4 inch drive socket on my rocker cover bolts. Works perfectly.
Hi

I spent $60 on a full set of 12 point sockets in a set that included sae as well as metric. It's 3/8" drive which is a headache latching on to the rocker cover screws even with a u/j directly above the socket.

As I want to get this done I haven't time to hunt around for a 1/4" 12 point drive set but, if this proves impractical with my 3/8" set, I may have to.

Yup, pain in the ***, I'm off to see what Sears has...

Not a lot, it seemed after a 22 mile round trip. But they had a 1/4" drive 12 point in SAE and I found 5/16" close enough to pull the rocker covers off.

More evidence of bodging was the dipstick holder was held to the rocker cover with a wood screw!

So got both rocker covers off and here's where my car and the workshop manual differ...

The workshop manual says to remove the pas pulley by undoing the three screws....except on my car the water pump is the three screw pulley and the pas pulley has a single large nut holding it on. I suspect it's 19mm and I have a socket that size.... just have to stop the pulley rotating....

For the record, I hope my tales of woe help anyone about to undertake this heads off procedure. It's certainly been a learning curve for me and my toolkit gets larger every day!
 

Last edited by lrguy46; Jul 26, 2015 at 04:53 PM.
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Old Jul 27, 2015 | 09:05 AM
  #35  
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Originally Posted by lrguy46
Hi

I spent $60 on a full set of 12 point sockets in a set that included sae as well as metric. It's 3/8" drive which is a headache latching on to the rocker cover screws even with a u/j directly above the socket.

As I want to get this done I haven't time to hunt around for a 1/4" 12 point drive set but, if this proves impractical with my 3/8" set, I may have to.

Yup, pain in the ***, I'm off to see what Sears has...

Not a lot, it seemed after a 22 mile round trip. But they had a 1/4" drive 12 point in SAE and I found 5/16" close enough to pull the rocker covers off.

More evidence of bodging was the dipstick holder was held to the rocker cover with a wood screw!

So got both rocker covers off and here's where my car and the workshop manual differ...

The workshop manual says to remove the pas pulley by undoing the three screws....except on my car the water pump is the three screw pulley and the pas pulley has a single large nut holding it on. I suspect it's 19mm and I have a socket that size.... just have to stop the pulley rotating....

For the record, I hope my tales of woe help anyone about to undertake this heads off procedure. It's certainly been a learning curve for me and my toolkit gets larger every day!
To take off the pulleys you will want to start the bolts with the belt on. If it is too late for that then, for three and four bolt setups, use the same size socket on a bolt you are not loosening then loosen the others. You will be tightening the one you are using for leverage so the last one is terrible. The cure of that is to put a neighboring bolt back on a few threads and use a long screw driver against that longer bolt for leverage.
 
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Old Jul 27, 2015 | 09:21 AM
  #36  
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another option is to put the belt around the pulley and clamp it tight with vise grips, but i was replacing the belt anyway
 
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Old Jul 27, 2015 | 09:44 AM
  #37  
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Originally Posted by drowssap
another option is to put the belt around the pulley and clamp it tight with vise grips, but i was replacing the belt anyway
Hadn't thought of that. Good idea!

I'd also add a caution. I cracked one of my pulleys one time using a really long screw driver and that pulley for leverage. Don't repeat my rookie mistake... keep the leverage on the screws because they are much easier and cheaper to replace.
 
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Old Jul 27, 2015 | 12:11 PM
  #38  
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Hi

Murphy's law (I was tired) I took the three screw pulley off (as instructed by the manual) before I saw it was the water pump! I undid screws levering against other screws but the last one was a @#$% to remove.... then I saw I didn't need to....

The PAS pulley I wedged a tommy bar through a hole against the engine and used a bigger bar to release the nut.

I don't know why Rover could not have located the engine a couple of inches further from the bulkhead... that ignition coil pack would be a @#$% to change plug leads where it is. I will certainly change them before I reassemble everything.

I'm English... moved to the USA in 1996... and decades ago when younger and fitter I took a lot of engines to pieces but back then it was 4 cylinders and carburettors and distributors... a lot easier to fix.

But back then I used to use red Hermetite spread really thinly on joints. I gather it's hard to find now and folk are using HYLOTYTE Red 100.... what are opinions on using these?

Also, I noticed Rimmer are selling studs and nuts to replace these stretchy head bolts... what are opinions on this system? I wondered how easy it would be to slide the heads over studs as there's not a lot of room in that engine bay, albeit it does seem a nicer way to torque stuff down...
 
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Old Jul 27, 2015 | 12:41 PM
  #39  
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Please take my advice very carefully.

1) Get a 5/8" BLACK inpact socket for the head bolts.
2) Get a 1/4 inch short extension - 2 inches long.
3) Get an impact grade swivel for the socket
4) Get a 6 inch extension.

Use Craftsman - if you break them they replace them - for the swivel and the extensions
the socket 5/8" must be black impact.

Use 5/8 as it fits very snug.

Never force off exhaust manifold bolts.
You don't need to take the manifolds off the bottom at the Y pipe. Leave that all alone.
Tie the manifolds back.

To put this back on - get a large breaker bar.
Put paint on a stripe on the bolt face to account for the turning 90 degrees and 90 again.

Only use victor Rhienz head gaskets.

Use a shop vac to get ALL water and antifreeze OUT of the head bolt holes.

Don't rush.
Take pictures of EVERYTHING when it is coming apart as here.

You will need those to get it back together.

https://www.flickr.com/photos/76579732@N07/
 
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Old Jul 27, 2015 | 12:43 PM
  #40  
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Actually to get the bolts off and back on I used a breaker bar and slipped a 4' iron pipe on the breaker bar.
You can buy Iron Gas pipe at the hardware store to slip over the breaker bar.
That works good.
 
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