Faulty car repair- mechanics with an opinion?

vax2002

When the engine has stopped, quickly undue the oil cap, does it puff or hiss ?
If so the breathers need doing, the cam cover has to come off again...
The rattle will be the pistons tapping the valves.

s_b

vax2002 wrote: »

When the engine has stopped, quickly undue the oil cap, does it puff or hiss ?
If so the breathers need doing, the cam cover has to come off again...
The rattle will be the pistons tapping the valves.

i would have likened the rattle to pinking because the injection timing isnt spilled correctly

dragonsoul

i agree with most of whats been said, but i have been out of the trade for a while now, so im very out of touch.

on this van does it have a cam belt driven diesel pump? as many diesels (ford transit for example) needs to have that timed too, i only ask as the mechanic you are using doesn't sound very competent.

also i hate to say this, but there is a chance the timing is now correct, IF they miss timed it during the cam belt process it is possible that it has bent a valve or two, and then they have put sorted the timing, but left the damage. will a couple of bent valves you would get the sluggish-ness etc

one more thing, i have a niggling issue at the back of my mind, i think (but cant be sure) it was the belingos that had the recall of cam covers due to them warping, and they replaced metal for plastic or vice versa

the next thing are you 100% its just oil? and does it look like there is more coming out then you are putting in? as again i must stress i have been of this trade for a while and im very rusty, but... on the back of those enigines i recall a small plastic pipe for the diesel feed, now these split and leak diesel around the back of the head, its possible that this is leaking (giving low power) and mixing with oil around the back of the engine and giving a larger puddle, if you see what i mean?

atrixblue.-MFR-.

your mobile mechanics perception of timing being out slightly = non runner is completely bullsh!t.

even drastically out as soon as started will smash everything in the pistons wake and then make it a non runner, but if its a tooth or two out, the valves dont complete a fully open close cycle and compression is lost through the valves.

the wrattle you hear maybe piston slap where the piston just about touches the valves !!!!! (slapping it), in wich case those valves need replacing.

or pinging from the mechanical diesel pump.

as suggested, somewone may have !!!!'d up, knew they had and then re-timed it to spec but the damage left in its wake has been done and thought they would get away with it.

ask for a reimbursment for the rocker gasket he bodged it broke it and then replaced with a bead of silly-cone :P wich will deteriorate over time with heat and oil eating at it.

Muscle750

On french diesil engine or any modern diesil engine its imperative that the timing is spot on otherwise you have diaster, pistons hitting valves etc, one thing nobodies mentioned is does it have a intercooler and if so has the pipe come off that will give very poor performance, personally i think if the timing was out and piston had hit valve the thing wouldnt run fullstop, plus if its common rail pump the pipe timing is irrevalvent as all the pump does is provide pressure, i would contact the garage he said that done it asked them if they did if they did id be straight there tomorrow asking some serious questions threatening trading standards local press etc, then id be off to see the so called mobile and threatening him with some sort of action as well.

Muscle750

Ive also seen a Passat that had jumped as tooth on the cambelt (petrol) it ran but the racket from the top was unbelievable, retimeds with a new belt and all was fine the owner was very lucky

dragonsoul

Muscle750 wrote: »

Ive also seen a Passat that had jumped as tooth on the cambelt (petrol) it ran but the racket from the top was unbelievable, retimeds with a new belt and all was fine the owner was very lucky

i have seen that too on VW's, but then diesels dont seem to be as forgiving. you mentioned an inter-cooler in your last post, i didnt notice any mention of it being a turbo, or did i miss something?

atrixblue.-MFR-.

i thought we were talking about a straight deisel not a turbo diesel.

the naturally asperated engine.

so no intercooler.

s_b

atrixblue.-MFR-. wrote: »

i thought we were talking about a straight deisel not a turbo diesel.

the naturally asperated engine.

so no intercooler.

it is mfr with a bally long belt on it and it looks real easy to get the pump slightly out

pitkin2020

deffo bog standard diesel no luxury of a turbo in this bad boy lol.

We had the RAC out today so if they would give an opinion, he took it for a spin and also agreed the timing has to be out as he couldn't get it over 40. He also commented that the state the engine has been left in is pretty disgusting as no effort to remove all the spilt oil from the previous blowout has been done. The RAC guy said if you had another oil leak you would have no way of seeing or even knowing as it looks like a gallon or two is there already lol.

We will be taking it to an independent garage shortly to ask them to give us a written report on what has happened, what should have been done, what damage has been caused and how much its going to cost to rectify. Its the only option.

Mistakes happen for various reason and when they do you need to hold your hands up and atleast say your sorry but you will sort it out. The mechanic hasn't made an apology of any sort and has either blamed the other garage (incidently the garage we never asked to do any work) or the poor design of the engine being the reason the gasket blew (flat surface to flat surface and only 3 bolts to tighten the rocker down with).

We have also noticed that the top bracket of the cam cover is now broken where it was bolted to part of the rocker cover. On the first return the bolt was raised and only screwed in by a couple of threads, when we asked him he said it was nothing it was meant to be like. After he did the 2nd repair the bolt mysteriously disappeared!!

I will be naming and shaming once we have got our money back and more and the car has been put right by a proper mechanic.

Thanks again everyone you have been really helpful