Member Since: 05 Jun 2021
Location: Luton
Posts: 44
Crossover pipe
Hi all. My crossover pipe needs replacing.
I can not justify the £300+ for a new standard. I have seen the stainless ones advertised- is this a logical option? Or do they fail ?
Or do I go for a good condition used withe the risk of possible failure?
Also noted the stainless ones are not insulated ? Would this need to be fitted or is there enough air gap to prevent heat transfer to the gearbox/ floor pan?
Thanks.
24th Jul 2021 8:02 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
The stainless steel ones will need covering with exhaust wrap before fitting.
The standard ones are good for many years and i have only seen them crack on the expansion part
Stainless steel is harder than mild steel but is more prone to cracking so unless they have got the design right it may nit last as long.
As for fitting a second hand one its up to you, yes it may go again but on the other hand you know the bolts will come undone.Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
24th Jul 2021 8:10 am
Apache
Member Since: 17 Oct 2011
Location: Yorkshire
Posts: 691
If you can find genuine for £300 then buy it. Closer to £500 when I bought mine (with studs etc).
Biggest cost is labour of doing. I know some people mess about from underneath but usually a body off job. All of my nuts were rust balls and needed chiselling off - don't think that would have happened any other way. I'd go genuine.
24th Jul 2021 1:54 pm
motorworks
Member Since: 14 Nov 2019
Location: Usk
Posts: 401
It is a gamble, but I would opt for a used COP. A big financial hit when they fail, which I think is rarely considering how many single turbo TDV6's are still in use.
Chances are you could mitigate the body off cost by checking/ replacing any other parts close to failure. There are several items I routinely look at. Rear ARB bushes for example, relatively small cost and much easier with top access to the bolts. HPFP belt and tensioner replacement is another quick and easy job.
Failure of a replacement COP would be painful. I reckon a stuck turbo actuator or failed coolant pipe, a few months later would be more annoying.Chris
24th Jul 2021 3:47 pm
mek
Member Since: 18 Mar 2015
Location: Zurich
Posts: 468
Regarding HPFP belt comment. Out of curiosity if you removed transmission and were able to successfully remove the old crossover pipe that way, does this give easier access up to the HPFP belt?
24th Jul 2021 10:35 pm
motorworks
Member Since: 14 Nov 2019
Location: Usk
Posts: 401
I have not tried HPFP belt replacement from underneath. With gearbox fitted it is impossible to reach, but gearbox out it should fairly easy.
I reckon two hours would be minimum, working over back of the engine. With body off, rear belt replacement takes a matter of minutes.Chris
24th Jul 2021 10:49 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4626
mek wrote:
Regarding HPFP belt comment. Out of curiosity if you removed transmission and were able to successfully remove the old crossover pipe that way, does this give easier access up to the HPFP belt?
Yes, 10 min job inc cup of tea!
However, if you are in a position to facilitate body removal you can easily sort the belt and the COP,
as well as addressing all other pending/maintenance issues without the need to touch the transmission!yµ (idµ - eAµ) ψ=mψ
25th Jul 2021 2:59 am
DaveCav
Member Since: 05 Jun 2021
Location: Luton
Posts: 44
Thanks all.
I am not in a position to have the body off etc. .
I am currently in the middle of changing my timing belt and oil pump myself and will be doing the COP myself too.
I know this will be a pain but it is my only option to be honest.
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