Johns blue sport · Jun 15, 2019

Hi I own a 2007 Range rover sport, 2.7tdv6 l320. recently has developed a tapped sound under load, sound like slack tappet rattling. Anyone any idea what it could be, and how to fix it. engine still strong no loss in power, and returns 32mpg, noise is bugging me thanks

Mark Piercy · Jun 15, 2019

Hey there,
Hmmm, Maybe a couple of opinions from a couple of garages could prove helpful on addition to any info from the bus drivers on here?

dubbleRR · Jun 16, 2019

Sounds like a cracked manifold ,If its only when under load....Also check all rubber belts for bits missing ,that can sound like a slack timing chain....

Datatek · Jun 16, 2019

Is that the engine that needs an oil pump mod?

gstuart · Jun 16, 2019

Datatek said:
Is that the engine that needs an oil pump mod?

Yes , indeed it does , especially from 2007

Has cam timing chains on the passenger side front and drivers side rear

Mark Piercy · Jun 16, 2019

gstuart said:
Yes , indeed it does , especially from 2007

Has cam timing chains on the passenger side front and drivers side rear

Why would they do that with the timing chains??
Same head mounted the other way around??

gstuart · Jun 17, 2019

Mark Piercy said:
Why would they do that with the timing chains??
Same head mounted the other way around??

Hi

Here’s some piccies

tomcat59alan · Jun 17, 2019

Isn't that engine prone to the crankshaft snapping?

gstuart · Jun 17, 2019

tomcat59alan said:
Isn't that engine prone to the crankshaft snapping?

Indeed they are , all the way through into the D4s

DanClarke · Jun 17, 2019

Ahhhhhh.... they don't make 'em like they used to; do they?
I am really surprised there has been no lawsuit on a grand scale on this calamitous failing.

Johns blue sport · Jun 17, 2019

Datatek said:
Is that the engine that needs an oil pump mod?

Yeah snaps at one of the bolt holes on the pump casing

Johns blue sport · Jun 17, 2019

dubbleRR said:
Sounds like a cracked manifold ,If its only when under load....Also check all rubber belts for bits missing ,that can sound like a slack timing chain....

Thanks I'll check that out

Mark Piercy · Jun 18, 2019

gstuart said:
Hi

Here’s some piccies

View attachment 181608 View attachment 181609 View attachment 181610

Cheers @gstuart , but why make it so complicated?

Newinnwoodman · Jun 18, 2019

Hi John
Welcome .
I don’t know your level of expertise but if you chasing a possible leak in the manifold. Put compressed air up it’s back passage(sealed with an old bike inner tube) and spray all along the exhaust with soapy water from a garden sprayer. If there are leaks there will be bubbles . But don’t get over giddy

Newinnwoodman · Jun 18, 2019

Can’t resist this:
Student pilot snags an aircraft and writes unfamiliar noise in port engine.
The tech who dealt with the snag wrote:
Port engine run for 30mins, noise now familiar !

tomcat59alan · Jun 19, 2019

Newinnwoodman said:
Hi John
Welcome .
I don’t know your level of expertise but if you chasing a possible leak in the manifold. Put compressed air up it’s back passage(sealed with an old bike inner tube) and spray all along the exhaust with soapy water from a garden sprayer. If there are leaks there will be bubbles . But don’t get over giddy

Or get someone to hold a rag over the end of the exhaust with the engine running.o

tomcat59alan · Jun 19, 2019

Newinnwoodman said:
Hi John
Welcome .
I don’t know your level of expertise but if you chasing a possible leak in the manifold. Put compressed air up it’s back passage(sealed with an old bike inner tube) and spray all along the exhaust with soapy water from a garden sprayer. If there are leaks there will be bubbles . But don’t get over giddy