FAO those with loud ticking - MG-Rover.org Forums

Broon · 11-11-2007, 13:08

Symptoms
- loud ticking on startup
- speed with engine revs
- disappears after a few minutes

This can be tappets caused by oil after periods of standing, but mine would come back after 15 mins or so of engine being switched off.

I did an extensive search on google and it seemd as though a leaking exhaust manifold would make the ticking noise (dont ask me how).

I then realised I had replaced mine around the same time as the ticking started.

Anyway, I went out and found one of the bolts was only torqued to 40nM, instead of 45!!!!! A whole 5 nM!!

Tightened it up, and voila, engine is as quiet as a mouse!!

Wortha check folks

Just have to rmeove the manifold heatshield (one 13mm bolt and two 10mm screws), then you can access the manifold bolts.

Jobe done.

(I also discovered there seems to be a bolt missing!!!!, but this doesnt seem to affect the ticking. Will replace as soon as I can get one. MAybe this is elading to performance issue?)

pob · 11-11-2007, 13:31

Spookyness, by coincidence i just popped in to check my manaul as I'd only done 4 exhaust manifold nuts and couldn't fine the 5th one. Being nosey I checked on the forum to find yer thread. Mine is missing one too!!! Centre one at top of manifold. Spooky but helpful, cheers Broon

Anyone else noticed this?

gaz

Broon · 11-11-2007, 13:50

MIne was the one next to the coolant sensor (number 4 in workshop manual). I am sure there was 5 when I replaced it the other month?

Mjust be a manifold bolt thief travelling the country

pob · 11-11-2007, 14:30

After travelling from Aberdeen to Harrogate he must be exhausted then.

Gets coat, again

pob · 11-11-2007, 14:39

Broon, any idea how to get to the bottom bolts on the inlet manifold? am a bit stuck on that one? I wasn't looking forward to the exhaust manifold but that turned out to be a doddle

Cheers

Gaz

Sprinter · 11-11-2007, 14:42

Hey Broon - good job you didn't sell the car in desperation. More car problems are caused by poor maintenance than poor manufacture. But it's no wonder none of us suggested that as a cure - imagine your response if we said "it's all down to you".

NOW ENJOY THE CAR.

Broon · 11-11-2007, 15:05

Quote:

Originally Posted by pob

Broon, any idea how to get to the bottom bolts on the inlet manifold? am a bit stuck on that one? I wasn't looking forward to the exhaust manifold but that turned out to be a doddle

Cheers

Gaz

I gave up in the end and never did mine. BEst to just have a good selection of tools which cana ccess all angles.

I agree. Exhasut manifold was a sinch (cinch?)

1955diesel · 11-11-2007, 15:21

Inlet manifold fixings - in the past I have just used a cheap 1/4" drive socket set. I think the trick lies in getting the right length extension.

MGFmad · 11-11-2007, 20:09

Quote:

Originally Posted by Broon

Symptoms
- loud ticking on startup
- speed with engine revs
- disappears after a few minutes

This can be tappets caused by oil after periods of standing, but mine would come back after 15 mins or so of engine being switched off.

I did an extensive search on google and it seemd as though a leaking exhaust manifold would make the ticking noise (dont ask me how).

I then realised I had replaced mine around the same time as the ticking started.

Anyway, I went out and found one of the bolts was only torqued to 40nM, instead of 45!!!!! A whole 5 nM!!

Tightened it up, and voila, engine is as quiet as a mouse!!

Wortha check folks

Just have to rmeove the manifold heatshield (one 13mm bolt and two 10mm screws), then you can access the manifold bolts.

Jobe done.

(I also discovered there seems to be a bolt missing!!!!, but this doesnt seem to affect the ticking. Will replace as soon as I can get one. MAybe this is elading to performance issue?)

That could answer why my car was ticking. It started doing it quite a bit when first starting up, I put it down to the HG starting to fail and some water getting into the oil. Since I replaced the HG in June all has been fine - of course I had to remove the manifold to do the work so maybe that was the problem.

1955diesel · 12-11-2007, 03:00

Ticking due to head gasket??
That's a new one.

Broon · 12-11-2007, 08:33

Quote:

Originally Posted by 1955diesel

Ticking due to head gasket??
That's a new one.

Its not the head gasket, its the exhaust manifold gasket

1955diesel · 12-11-2007, 08:38

Yes, I know. My comment was for MGFmad in the post above.

colsmgf · 13-11-2007, 20:23

well regards to this being the ticking on my car no way if you read my thread ticking plz help i have had it checked today and was told its the hydraulic tappets that has gone maybe 1 or more so its going in to get new ones fitted along with timing belt just deciding which garage to take it too

Broon · 13-11-2007, 20:25

Scotland site on here is dead. smot of them oved over to the ZR site due to disagreements with mods

. Try joining and posting on the mgzr.co.uk site, its more active and has a large scottish contingent

colsmgf · 13-11-2007, 21:25

can you get to the bolts on manifold from below the car or do you have to take engine cover off

Broon · 13-11-2007, 21:26

Cover job I am afraid. Then remeove heatshield. Not a big thing really.

MGFmad · 13-11-2007, 21:48

Quote:

Originally Posted by 1955diesel

Yes, I know. My comment was for MGFmad in the post above.

I better explain my theory!

I had the oil mixing with the coolant and some mayo in the dip stick for a few weeks but as there was such a slight water loss and no overheating, I used the car for a few weeks until I had the parts together and a free weekend to replace the gasket. As time went on the ticking started and I had the theory that as water was getting into the oil, it might have found its way to the tappets and caused the ticking

Maybe so or not, but after the oil change when the gasket was replaced, the ticking stopped.

Broon · 17-11-2007, 13:08

OK, my ticking came back over time , big style, but then I had a missing bolt on my manifold.

Got new bolts yesterday and fitted today. Quiet as a mouse.

I an confirm that the loud ticking , in time with revs, dieing off after a minute or two, msotly on load, as opposed to idle, was caused by a leaking exhaust manifold.

I will post ups comparative sound files before and after from today, when I can be bothered shortenign them a bit

Pic below -Mmmm, shiny

Whislt looking at the pic though, what is the bracket for? And does it look like someone has been welding near my manifold?

IN the second pic, this was bolt no 3, under the bracket. It was unable to be tightened properly. It seems to be shorter than the rest, or rather the smooth bit in the middle seems larger?

. It is also blackened, suggesting it has been leaking. New one is nice and tight (45 Nm). Wonder if this has been causing any perofrmance issues? (although it would surely affect emissions but mine was fine

Petevick · 17-11-2007, 15:10

isn't the bracket for the heat shield ??

that stud has deffo had exhaust gasses on it from a leaking gasket, which would be detrimental to your performance......and the cars

good work detective Broon

Broon · 17-11-2007, 15:12

Quote:

Originally Posted by Petevick

isn't the bracket for the heat shield ??

that stud has deffo had exhaust gasses on it from a leaking gasket, which would be detrimental to your performance......and the cars

good work detective Broon

Er, that will be where I placed a screw in the heat shield when re-fitting then

11-11-2007, 13:31	#2
pob pi awe bi Join Date: Apr 2007 Location: Harrogate Car: MG TF 160 Posts: 537	Spookyness, by coincidence i just popped in to check my manaul as I'd only done 4 exhaust manifold nuts and couldn't fine the 5th one. Being nosey I checked on the forum to find yer thread. Mine is missing one too!!! Centre one at top of manifold. Spooky but helpful, cheers Broon Anyone else noticed this? gaz __________________ Why do today what you can leave til tomorrow.

11-11-2007, 14:30	#4
pob pi awe bi Join Date: Apr 2007 Location: Harrogate Car: MG TF 160 Posts: 537	After travelling from Aberdeen to Harrogate he must be exhausted then. Gets coat, again __________________ Why do today what you can leave til tomorrow.

11-11-2007, 14:39	#5
pob pi awe bi Join Date: Apr 2007 Location: Harrogate Car: MG TF 160 Posts: 537	Broon, any idea how to get to the bottom bolts on the inlet manifold? am a bit stuck on that one? I wasn't looking forward to the exhaust manifold but that turned out to be a doddle Cheers Gaz __________________ Why do today what you can leave til tomorrow.

17-11-2007, 15:10	#19
Petevick regained interest Join Date: Jul 2004 Location: Leicestershire Car: MG TF 160 in Trophy Yellow Posts: 39,683	isn't the bracket for the heat shield ?? that stud has deffo had exhaust gasses on it from a leaking gasket, which would be detrimental to your performance......and the cars good work detective Broon __________________ Pete Vickerstaff - Proud to drive an MG TF 160 in Trophy Yellow MG F/TF Central - your one stop shop for MGF/TF tips, tricks, faq's, how to's and links Soft Resin Badges for sale

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

11-11-2007, 14:42	#6
Sprinter Supporter Join Date: Oct 2003 Location: Herts Car: MG TF135 184 g/km Posts: 15,551	Hey Broon - good job you didn't sell the car in desperation. More car problems are caused by poor maintenance than poor manufacture. But it's no wonder none of us suggested that as a cure - imagine your response if we said "it's all down to you". NOW ENJOY THE CAR.

11-11-2007, 15:21	#8
1955diesel Registered User Join Date: Jan 2005 Location: Birmingham Car: Other Manufacturer Posts: 11,766	Inlet manifold fixings - in the past I have just used a cheap 1/4" drive socket set. I think the trick lies in getting the right length extension.

12-11-2007, 03:00	#10
1955diesel Registered User Join Date: Jan 2005 Location: Birmingham Car: Other Manufacturer Posts: 11,766	Ticking due to head gasket?? That's a new one.

12-11-2007, 08:38	#12
1955diesel Registered User Join Date: Jan 2005 Location: Birmingham Car: Other Manufacturer Posts: 11,766	Yes, I know. My comment was for MGFmad in the post above.

13-11-2007, 20:23	#13
colsmgf Registered User Join Date: Aug 2007 Location: ayrshire Car: MG TF Posts: 30	well regards to this being the ticking on my car no way if you read my thread ticking plz help i have had it checked today and was told its the hydraulic tappets that has gone maybe 1 or more so its going in to get new ones fitted along with timing belt just deciding which garage to take it too

13-11-2007, 21:25	#15
colsmgf Registered User Join Date: Aug 2007 Location: ayrshire Car: MG TF Posts: 30	can you get to the bolts on manifold from below the car or do you have to take engine cover off

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
loud ticking from engine	marritt79	MG ZR / Rover 25, 200 & Streetwise	15	04-10-2009 21:15
Loud ticking noise !!!!	Jamie S	'R8' Rovers (aka Wedges!!)	17	09-10-2008 17:53
loud ticking noise	tommy101c	MG ZT / Rover 75	5	25-08-2008 18:29
loud ticking noise	cdti_88	MG ZR / Rover 25, 200 & Streetwise	2	03-10-2007 07:30
Loud ticking over	Dunc32	MG ZR / Rover 25, 200 & Streetwise	11	20-02-2005 09:28