|
||
|
18th May 2022, 05:50 | #1 |
Loves to post
MGZT Join Date: Aug 2019
Location: Richmond
Posts: 255
Thanks: 26
Thanked 80 Times in 45 Posts
|
MGZT KV6-Rattle-Driving Me Mad!!
Dear All
I hope you are all well. ZT seems to be going ok since its head rebuild and belts and pump change, still has a rattle, normally when stone cold over night. I suspect its the inlet manifold (I did swap this last year), the odd thing is, if I go out from work at lunchtime, the rattle seems worse! It does eventually subside once the car is warmed up. Going to try and get another inlet manifold and go back to busking in York to pay for all the bills, I will not let this car beat me!! Best wishes to all Persistent Bob |
18th May 2022, 06:39 | #2 |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,270
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
Hi Bob,
As the rattle is present only after a cold start, it's very unlikely to be a worn power valve linkage in the manifold chamber. I'd bet on a belt tension problem which is rather worrying bearing in mind your recent engine rebuild which would have included timing belt replacement. Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
18th May 2022, 07:05 | #3 |
Posted a thing or two
Rover 75 Saloon Join Date: Mar 2014
Location: Louth
Posts: 1,394
Thanks: 380
Thanked 986 Times in 476 Posts
|
Hi Bob did it rattle before the rebuild I suspect it did as the people that did your engine have a good reputation so don't get worried unnecessarily
Dave |
18th May 2022, 07:10 | #4 |
Loves to post
MGZT Join Date: Aug 2019
Location: Richmond
Posts: 255
Thanks: 26
Thanked 80 Times in 45 Posts
|
Rattle
Thanks Simon and Dave
It did rattle slightly before the disastrous engine incident, that why I changed the inlet manifold, I have to admit it wasn't much better after the change! It ran fine this morning on the 25 mile drive to work, but it is in open countryside so you cannot hear the rattle, in town it seems worse. It might just be me, but something isn't right, I like things to be spot on! Bob |
18th May 2022, 07:36 | #5 |
Premium Trader
Rover 75 Join Date: Nov 2010
Location: Devon
Posts: 33,714
Thanks: 8,837
Thanked 14,831 Times in 8,030 Posts
|
I'd do a good engine flush and change the oil, tappets are known to do this after a rebuild.
Sent from my SM-G780G using Tapatalk
__________________
Lest we forget..
|
18th May 2022, 09:18 | #6 |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
Location: Hampshire
Posts: 11,531
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
|
Could be piston slap. Not unknown with the KV6.
|
18th May 2022, 12:18 | #7 |
This is my second home
Lagoon 2.0 V6 75 Conn SE Saloon Join Date: Nov 2006
Location: Chertsey
Posts: 5,198
Thanks: 2,825
Thanked 2,920 Times in 1,570 Posts
|
Indeed. Does it sound anything like this? (noise starts around the 19 second mark): Cliff
__________________
No. 4 of 6 |
18th May 2022, 14:53 | #8 |
Loves to post
MGZT Join Date: Aug 2019
Location: Richmond
Posts: 255
Thanks: 26
Thanked 80 Times in 45 Posts
|
Noise
Thanks for this Teflon, not sure but I am going into the car park in a few minutes once I get 150 students out on placement next week. I need a reliable car next week to visit them!!
Best wishes Bob PS What is the noise after 19 seconds?? Did you find out?? |
18th May 2022, 14:56 | #9 |
Loves to post
MGZT Join Date: Aug 2019
Location: Richmond
Posts: 255
Thanks: 26
Thanked 80 Times in 45 Posts
|
Tappet noise
Thanks Trikey,
This happened last summer on my wife's TF, had the head skimmed and it was fine for two days, then made a really bad noise, changed the oil and he presto noise disappeared!! It did waste 4.5 litres of fully synthetic!! Bob Last edited by Bob Walker; 18th May 2022 at 15:02.. |
18th May 2022, 18:46 | #10 | |
This is my second home
Lagoon 2.0 V6 75 Conn SE Saloon Join Date: Nov 2006
Location: Chertsey
Posts: 5,198
Thanks: 2,825
Thanked 2,920 Times in 1,570 Posts
|
Quote:
Cliff
__________________
No. 4 of 6 |
|
Thread Tools | |
Display Modes | |
|
|