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V70 tdi. Fixed, broken, fixed. Unexciting update


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#1 ONLINE   scdan4

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Posted 28 May 2016 - 07:56 PM

That bit hiding up behind the air filter and infront of the turret

IMG_0300.JPG

made a prolonged, loud, farty vibratey noise (loud enough to be clearly audible in the cabin with the radio on) twice today, both times it did it the nose was pointing down a steep hill and we had just parked and turned off the engine.

It goes on for best part of a minute, so managed to track it down. Initial impressions are fuck knows what it is but it's clearly been bodged in the past. The yellow hose has clearly been disconnected sometime, by someone, for some reason, somewhere.

IMG_0301.JPG

Thats the blighter.

Does someone want to tell me why it's blowing raspberries at me?

prb2.jpg
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#2 OFFLINE   robinmasters

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Posted 28 May 2016 - 08:13 PM

No idea, but the reference to the Phantom Raspberry Blower of Old London Town deserves some sort of award.
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#3 OFFLINE   Richard

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Posted 28 May 2016 - 08:15 PM

It's to do with the EGR I think, the 850's is blocked off with a trim stud.


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#4 OFFLINE   Richard

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Posted 28 May 2016 - 08:26 PM

27242200061_2b1f2a6c5d_b.jpg



#5 OFFLINE   Dave_Q

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Posted 28 May 2016 - 09:34 PM

The farting is probably a vac leak via what looks like a previous electrical tape repair.

 

I'd agree that it's most likely an EGR solenoid, possibly a boost control solenoid.

 

See if you can follow the hoses and see what they connect to to be sure.


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#6 OFFLINE   matty879

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Posted 29 May 2016 - 12:04 AM

The farting is probably a vac leak via what looks like a previous electrical tape repair.

 

I'd agree that it's most likely an EGR solenoid, possibly a boost control solenoid.

 

See if you can follow the hoses and see what they connect to to be sure.

it is indeed the egr solenoid


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#7 OFFLINE   sutty2006

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Posted 29 May 2016 - 08:04 AM

Previous owner to me "bypassed" the EGR or deleted it or what ever the current phrase was for the terminology. Blank it off again and continue throbbing away :lol:


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#8 ONLINE   scdan4

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Posted 29 May 2016 - 08:22 AM

Cheers chaps

 

I'll fire a plug up it and keep pounding away.

 

:-D



#9 OFFLINE   jonathan_dyane

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Posted 29 May 2016 - 04:49 PM

It's to do with the EGR I think, the 850's is blocked off with a trim stud.

 

That was me!


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#10 ONLINE   scdan4

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Posted 30 May 2016 - 09:05 AM

 

That's interesting*

 

You've blocked the feed to the valve, mine had the feed to the pipe blocked off (rather than the valve body).

 

So I've really reached deep for engineering professionalism, and fired an 8 x 1 woodscrew up it.

 

IMG_7665.JPG

 

 

In other exiting* news the bumpers jaunty angle

 

IMG_7662.JPG

 

is caused by the "they all do that sir" bumper mounts rusting through. 

 

IMG_7663.JPG

 

The towbar seems to be holding it on and new mounts are £40, so may just ignore that.


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#11 OFFLINE   Richard

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Posted 30 May 2016 - 11:14 AM

JD did it before he sold me the car, it's not given any bother so I have left it alone.

I might be able to help you with bumper mounts, but probably not. I have a feeling they are just as bad on our spares car.

#12 ONLINE   scdan4

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Posted 30 May 2016 - 07:20 PM

JD did it before he sold me the car, it's not given any bother so I have left it alone.

I might be able to help you with bumper mounts, but probably not. I have a feeling they are just as bad on our spares car.

 

I'd be grateful if you have a squiz tho! thanks. 

 

I do have 40 quid, but i'd much rather keep as much of it as possible in my pocket. 

 

 

Sutty - do you happen to know if the previous owner stuck a blanking plate in as well when he blocked off the hoses? 

 

 

Also, brake performance at idle/cold is mega shite (nearly rammed a couple of things wriggling out of tight spots since i've got it. The pedal needs proper standing on and is very wooden. Dodgy hose to the servo would be my first guess. Not looked yet.



#13 OFFLINE   Richard

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Posted 30 May 2016 - 07:22 PM

My brakes are a bit like that. I think it just takes a while to build up pressure in the servo.



#14 OFFLINE   sutty2006

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Posted 30 May 2016 - 09:06 PM

 


 

Sutty - do you happen to know if the previous owner stuck a blanking plate in as well when he blocked off the hoses? 

 

 

Also, brake performance at idle/cold is mega shite (nearly rammed a couple of things wriggling out of tight spots since i've got it. The pedal needs proper standing on and is very wooden. Dodgy hose to the servo would be my first guess. Not looked yet.

 

Cant remember, I wasnt paying attention to the bloke waffling on about it, just caught evry other bit of interesting information. Fordperv may have been listening more tho.

 

As for the brakes, I seam to remember doing that on my drive but never payed much attention to it, it was always fine half way down my street ..... if you're on Facetube, join a group called volvo V70 owners, theres loads of people on there with these... they might be able to shed some more light. I know a bloke on facebook that brakes these V70s too, he might have some bumper mounts, I'll send him a messarge.


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Sideways is the only way forwards!

 

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#15 ONLINE   scdan4

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Posted 31 May 2016 - 10:02 AM

How did anyone ever know anything before the internet.

 

No brakes when cold:  http://www.matthewsv...pic.php?t=43817

 

 

Sounds exactly like it. Richard - have a look if yours are too.


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#16 OFFLINE   fordperv

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Posted 31 May 2016 - 10:20 AM

Cant remember, I wasnt paying attention to the bloke waffling on about it, just caught evry other bit of interesting information. Fordperv may have been listening more tho.


I was doing the same to be fair, I can't remember what he said regarding the egr
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#17 ONLINE   Lacquer Peel

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Posted 31 May 2016 - 10:21 AM

It might be the same problem but the servo is driven by a cam driven vac pump on the diesels, they get tired and may take a moment to build up a vacuum.
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#18 ONLINE   scdan4

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Posted 31 May 2016 - 08:06 PM

Cant remember, I wasnt paying attention to the bloke waffling on about it, just caught evry other bit of interesting information. Fordperv may have been listening more tho.

 

As for the brakes, I seam to remember doing that on my drive but never payed much attention to it, it was always fine half way down my street ..... if you're on Facetube, join a group called volvo V70 owners, theres loads of people on there with these... they might be able to shed some more light. I know a bloke on facebook that brakes these V70s too, he might have some bumper mounts, I'll send him a messarge.

 

Halfway down the street and they're ok, but we're tight on road parking round here, so every driving adventure begins with wiggle forward, full lock, wiggle back, full lock, wiggle forward yada yada yada. I'm finding start, footbrake on (normal pressure like), select gear, handbrake off and OH MY JESUS CHRIST nearly slam it into the neighbours car a bit of a strain on my heart. I'm not as young as I was and can't afford lose any more hair.

 

Mounts would be good if you'd be kind enough to ask. I don't do faceache i'm afraid!

 

It might be the same problem but the servo is driven by a cam driven vac pump on the diesels, they get tired and may take a moment to build up a vacuum.

 

I'm going to have a nose - I hadn't noticed that link wasn't a diesel one! The symptoms he describes are spot on so i'll have a delve and see what I can find / test.

 

Not having a manometer though, i have no idea how i'll test a pumps effectiveness. I did notice some of the vac hoses present were pretty cracked and tatty when I was having a nose at the egr, could have something to do with it.

 

 

In other news, i've done a couple of long trips today and yesterday so used them as a economy run. Sat at 60mph on cruise control it has done...

 

...nearly 60 to a gallon.

 

I'm genuinely a bit gobsmacked about that.


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#19 ONLINE   Lacquer Peel

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Posted 31 May 2016 - 09:02 PM

My V70 TDI auto was really fuel efficient on gentle runs too, but awful around the doors, sometimes sub-30MPG, it was running on a high percentage of veg at the time though, and I don't think the timing was ever quite right.



#20 ONLINE   scdan4

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Posted 08 June 2016 - 01:58 PM

I've just had a good look at the brakes and bits.

 

The servo seems to be entirely powered by the cam driven vac pump 

 

The vac pipe to the servo looks old, but also ok as far as i could see. It does have the most tortuous route around the engine bay though, bits are buried under the fuse box and air filter box etc, so can't see them. 

 

So I assume the pump has had it.

 

parts for saabs have one but it's over 100 quid.

 

Do they all do that, or if I get one from a breaker should it be a lot better than the one on there? (which, in mitigation has done 200k)



#21 OFFLINE   Jifflemon

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Posted 09 June 2016 - 06:04 PM

Just a thought, the same engine is used in various vw's so may be cheaper at a VW breaker?

#22 ONLINE   scdan4

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Posted 09 June 2016 - 07:39 PM

To answer my own questions i did some nosing on the internet. 

 

Lots of vw owners reporting sludge in the pump making it noisey and ineffective.

 

So bravely got stuck in today.

 

The pump is at the front in the middle of the engine, so easy to get at, but also heavily obstructed by fuel lines and the like, which made getting the bottom nut off a complete pig of a job, but managed to slide a spanner down there and tease it off.

 

IMG_7666.JPG

 

pump off

 

IMG_7668.JPG

 

stripped and washed - no pics of the sludge im afraid as my hands were very manky by that point, but there was plenty off it.

 

IMG_7670.JPG

 

Back together was as much of a bitch as taking it off, but fitted.

 

And wayhey. brakes. hurrah for that.

 

job well done and all for nowt. My favourite price. 


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#23 ONLINE   scdan4

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Posted 09 June 2016 - 07:43 PM

Just a thought, the same engine is used in various vw's so may be cheaper at a VW breaker?

 

yes, during my searching for this i found out it had an audi engine.

 

was a surprise to me. Will now tell my friends i/ve reached the heady heights of driving an audi.



#24 ONLINE   Lacquer Peel

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Posted 09 June 2016 - 08:39 PM

Aye, it was first used in the Audi 100 TDI, then  in VW Transporter and LT vans. Also Steyr-Puch Pinzgauers.


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#25 OFFLINE   Richard

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Posted 09 June 2016 - 08:43 PM

I had a look at the bumper mounts on the breaker at the weekend and they are indeed buggered I'm afraid.


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#26 ONLINE   Lacquer Peel

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Posted 09 June 2016 - 09:02 PM

Maybe my SCRAPPED V70 wasn't so bad after all, the rear bumper mounts were good to go after a lick of paint.


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#27 ONLINE   scdan4

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Posted 10 June 2016 - 11:27 AM

I had a look at the bumper mounts on the breaker at the weekend and they are indeed buggered I'm afraid.

 

Thanks for looking. Flushed with vacuum pump success I've just ordered some new ones off ebay. 

 

35 quid delivered - not the end of the world.


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#28 OFFLINE   Richard

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Posted 10 June 2016 - 03:38 PM

I'm tempted to strip down my own vacuum pump now. Was it just a case of taking it to bits, cleaning it and putting it back together?



#29 ONLINE   scdan4

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Posted 11 June 2016 - 09:21 AM

I'm tempted to strip down my own vacuum pump now. Was it just a case of taking it to bits, cleaning it and putting it back together?

 

yep. 

 

Popped the top plate off it (6 torx screws) and gave the whole thing a good wash in white spirit.

 

It was all covered in oil sludge, including the 3 little valves, so would explain nicely why it was not very effective.

 

Well worth it for the 3 hours or so it took. (and most of that was doing the bottom mounting nut!)


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#30 ONLINE   scdan4

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Posted 07 July 2016 - 07:21 PM

New bumper bracket time.

 

old bumper brackets have seen better days.

 

IMG_7671.JPG

 

the towbar was the only thing holding it on, so had to be dropped to allow the bumper off

 

IMG_7672.JPG

 

which allowed me to discover this reassuring delight. 

 

IMG_7674.JPG

 

(we do have a bit of nose weight in the trailer, yes).

 

Back on was a relative delight with new bolts (some stainless, gurt posh), copperslip and brackets. Nothing seized at all. Marvellous. Went so well that I didn't take any photos of the bumper now back on, lined up, straight and true. But I promise i managed it. 

 

So we took it for a wash to celebrate.

 

IMG_7676.JPG

 

 

Next on the niggle list is the gear shifter release button has broken. This, obviously, results in the ignition key getting stuck in the ignition. (Took me some working out that one). Anyone got one they don't want?


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