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Discussion Starter #1
I have a ticking noise on my rover that has been getting progressively worse as time goes. I am concerned it is a sleve getting ready to go. I do not know the complete history of the vehicle, but I assume that it's temperature was redlined due to it being in California all its life. It is more likely that it is a valve, rocker, lifter, or cam shaft problem. However, I am still concerned. I have not done a compression test yet, and I should :x . I am thinking about buying a used engine and rebuilding it for the time when the current one finally does go. I tried some additives to see if they would clean some stuff out, and nothiing. Right now the rover sits in the garage waiting for new tires, as the current ones are dangerousely worn. So I haven't had a chance to drive it other than random puts around the neighborhood.
 

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G'day Scotty,
The ticking sound could be the releaf valve spring in the oil pump,could be the fan viscous they tick and carry on on warm up ? Maybe a noisy lifter? What oil do you use :think:
My brother has the same sound ,doesn't worry him any more just change oil and filter ever 5000klm with 15/50w and some lucus half bottle or a good 20/50w minerial base oil or a blend ,to costly for full syn,over rated for push rod motors.
If its running ok serviced well,breathing well just drive it and enjoy. :dance:
Yes if you intend to keep your car for a long time and the motor has more than 350,000klm on it yea look at doing your own rebuild for the future :thumb:
 

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Discussion Starter #4
It doesn't seem to be loosing any coolant. If I put the coolant in the resivour to the "cool" level, it will just leak it out until it gets to a specific level (don't know why) then no more, which is where it is at right now. I use 10w-40 Castrol High Mileage, and mixed probably 3oz of synthetic in there to clean things out. I took the rover out of the garage today and let it sit there idling with the OBD scanner plugged in. It maxed at 201F with the ambient temp being 75F. I tried keeping it at 195 or less by revving the engine to 2k RMPs. I revved it until the fan clutch released at about 188F. The ticking noise is always there, sounds like an exhaust leak at start up but then it seems to get worse. The sound is primarily on the right side of the engine when facing the steering wheel, I can also hear a faint tick tick from the other side. It is old and has a lot of miles, so I am just suspecting the worse and preparing for it. Granted something is actually wrong :) . My problem is I notice too many details with vehicles. I am used to driving a Korean made hyundai that runs like a swiss watch in comparison to a vehicle that is GREAT but has random little annoyances. I just noticed a slightly louder TICK than normal. There is a rover V8 from a disco for $150 that I am considering purchasing just to keep my A$$ covered. The catch is, it blew a head gasket and I am awaiting pictures that show the damage of the "rusty" cylinders. I still might buy it just to take it apart and gain more knowledge about the rover V8 when I go to finally take mine apart, god willing that never happens :pray: . I might make a little video of it here shortly to help with the diagnosis. Thanks for the help, I really appreciate it.
 

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lrscott said:
I have a ticking noise on my rover that has been getting progressively worse as time goes. I am concerned it is a sleve getting ready to go. I do not know the complete history of the vehicle, but I assume that it's temperature was redlined due to it being in California all its life. It is more likely that it is a valve, rocker, lifter, or cam shaft problem. However, I am still concerned. I have not done a compression test yet, and I should :x . I am thinking about buying a used engine and rebuilding it for the time when the current one finally does go. I tried some additives to see if they would clean some stuff out, and nothiing. Right now the rover sits in the garage waiting for new tires, as the current ones are dangerousely worn. So I haven't had a chance to drive it other than random puts around the neighborhood.

Hi, I have just had the same thing on my 4.6, it's done 130k miles and dont think it had seen new oil in the last 50k!!

Took the right hand rocker cover off, full of black tar and what looked like bits of coal. Left hand was the same plus breather blocked.

Took right hand rocker bar off and found three of the rockers were so stiff on the bar I dont know how they were working, so £186 and two new rocker sets, bars & posts.

Total bliss now....NO TICKING........but tick over is lumpy still, new OEM leads ordered....
 

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lrscott said:
I use 10w-40 Castrol High Mileage, and mixed probably 3oz of synthetic in there to clean things out.
I'm sure you are not supposed to mix Mineral oil and synthetic together. They don't blend. It's the same as mixing two different synthetic oil brands together, they don't mix either.. May be a worn rocker arm (just a thought since the noise is coming from one bank and not central). Are the coolant hoses becoming pressurised?
 

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Discussion Starter #9
I'm sure you are not supposed to mix Mineral oil and synthetic together. They don't blend. It's the same as mixing two different synthetic oil brands together, they don't mix either.. May be a worn rocker arm (just a thought since the noise is coming from one bank and not central). Are the coolant hoses becoming pressurised?
Didn't realize you were not supposed to mix synthetic :oops: . Thankfully I only put about 1/4 of a quart (if that) in, it was just left over from the previous oil change on another car. I did take the valve cover off not to long ago, nothing was black, just brown. It looked like the holes were clear and it was getting adequate oil so I threw the valve cover back on and did not give it much thought after that. I am concerned that the pan is sludged and is causing poor oil circulation. The hoses are pressurizing and the vehicle seems to be staying cool. I just go off the actual temps from the OBD right now, because of a short somewhere causing the needle to be inaccurate on the gauge.

Mine was ticking a while ago too. Had some exhaust work done and they put new gaskets in... ticking went away. Just a thought.
Mine already has an exhaust leak about halfway down the vehicle. Not a huge one, thankfully they did not catch that during inspection :thumb: . That is probably the cause, as it is more noticeable on the passenger side than the driver side.

Hi, I have just had the same thing on my 4.6, it's done 130k miles and dont think it had seen new oil in the last 50k!!
Took the right hand rocker cover off, full of black tar and what looked like bits of coal. Left hand was the same plus breather blocked.
Took right hand rocker bar off and found three of the rockers were so stiff on the bar I dont know how they were working, so £186 and two new rocker sets, bars & posts. Total bliss now....NO TICKING........but tick over is lumpy still, new OEM leads ordered....
I hate it when people don't take care of their rovers. My boss is that way with his and it drives me nuts. Thankfully your rover found a good home.

My thoughts that you could use a higher Vis oil for the climiate you live in .read this thread its great,dose'nt mean go out and buy the No 1 oil but also look at Viscosity for low tolarance push rod V8. The oil you are using is more suited to a worn out overhead multi-cam engine.
Well, 10w-40 is right within the temp range right now, at least according to the owners manual. You mentioned something about a thread, that I would really like to visit :D .

Thanks all for your help!
 

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Selby P38 said:
G'day Scotty,
My thoughts that you could use a higher Vis oil for the climiate you live in .read this thread its great,dose'nt mean go out and buy the No 1 oil but also look at Viscosity for low tolarance push rod V8.
The oil you are using is more suited to a worn out overhead multi-cam engine.



http://www.performanceoilnews.com/oils_ ... oils.shtml
Scotty the Link was right under my post good read,
lrscott said:
I'm sure you are not supposed to mix Mineral oil and synthetic together. They don't blend. It's the same as mixing two different synthetic oil brands together, they don't mix either.. May be a worn rocker arm (just a thought since the noise is coming from one bank and not central). Are the coolant hoses becoming pressurised?
Didn't realize you were not supposed to mix synthetic :oops: . Thankfully I only put about 1/4 of a quart (if that) in, it was just left over from the previous oil change on another car. I did take the valve cover off not to long ago, nothing was black, just brown. It looked like the holes were clear and it was getting adequate oil so I threw the valve cover back on and did not give it much thought after that. I am concerned that the pan is sludged and is causing poor oil circulation. The hoses are pressurizing and the vehicle seems to be staying cool. I just go off the actual temps from the OBD right now, because of a short somewhere causing the needle to be inaccurate on the gauge.

[quote:1qq1k9d4]Mine was ticking a while ago too. Had some exhaust work done and they put new gaskets in... ticking went away. Just a thought.
Mine already has an exhaust leak about halfway down the vehicle. Not a huge one, thankfully they did not catch that during inspection :thumb: . That is probably the cause, as it is more noticeable on the passenger side than the driver side.

Hi, I have just had the same thing on my 4.6, it's done 130k miles and dont think it had seen new oil in the last 50k!!
Took the right hand rocker cover off, full of black tar and what looked like bits of coal. Left hand was the same plus breather blocked.
Took right hand rocker bar off and found three of the rockers were so stiff on the bar I dont know how they were working, so £186 and two new rocker sets, bars & posts. Total bliss now....NO TICKING........but tick over is lumpy still, new OEM leads ordered....
I hate it when people don't take care of their rovers. My boss is that way with his and it drives me nuts. Thankfully your rover found a good home.

My thoughts that you could use a higher Vis oil for the climiate you live in .read this thread its great,dose'nt mean go out and buy the No 1 oil but also look at Viscosity for low tolarance push rod V8. The oil you are using is more suited to a worn out overhead multi-cam engine.
Well, 10w-40 is right within the temp range right now, at least according to the owners manual. You mentioned something about a thread, that I would really like to visit :D .

Thanks all for your help![/quote:1qq1k9d4]

Going by Amsoil some do mix there Racing full syn with minerial based oils but read more into it :think:
 

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Discussion Starter #11
lol wow, sorry I can't believe I missed that link. Looking at it right now, thanks! :D
 

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you need to establish if ticking noise is internal or external, top or bottom of engine, exhaust manifolds can blow behind the heat shield that also makes a ticking noise.

A length of hose can also aid in finding the noise
 

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Check out the idler pulley... the lightweight composite design has a habit of detaching from the bearing case and it rattles... enough to think it may be a slipped liner... as advised elsewhere, a length of hose to the ear is your friend. Valve gear is also a known problem especially if push rods and lifters have stopped rotating sufficiently, thereby creating abnormal wear patterns on the lifter face where it contacts the cam lobe.. tick tick tick....
 

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Discussion Starter #14
a length of hose to the ear is your friend
Did not think to use a hose, thanks! I know the sound is coming from the sides of the engine. Some times the sound is there, sometimes its not. Usually during start up it is not noticeable ( I think due to the fan roaring until the oil in the clutch spreads) I'll have to let the fan noise dissipate and then listen for it. It does it off and on, on both sides. I'll get that hose and see if i can pin point it. Thanks for the advice. :D
 

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My 97 rover was problem free until about 8 months ago when it started developing a ticking sound from the side of the engine, as best as i could determine. Really bad on cold weather start up then lessened or stopped at idle temp. I did oil changes with synthetic regularly/lucas and cleaning additives but couldn't ever get rid of it. Recently blew my head gasket when the rocker covers came off they were full of coffee grind like sludge, as mentioned by SID in his post, and the circulation holes were all blocked up. My mechanic said this would be the cause of the tick the oil circulation is poor and blocked so the motor is likely badly worn. We dropped the oil pan and the pick screen was 60% blocked with a solid mask of sludge. I went with a complete rebuild and when the motor was apart it was evident that the lack of oil flow had done pretty good damage. The shop is an engine rebuild specialist and they see a lot of rovers, jags and audis that have this problem due to improper maintenance of the breather hoses. You might want to check under your rocker covers and see what's there, if its what gunk like SID or I described you could start looking there as a source of your tick and hopefully prevent further expensive damage.
 

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lrscott said:
I'm sure you are not supposed to mix Mineral oil and synthetic together. They don't blend. It's the same as mixing two different synthetic oil brands together, they don't mix either.. May be a worn rocker arm (just a thought since the noise is coming from one bank and not central). Are the coolant hoses becoming pressurised?
Didn't realize you were not supposed to mix synthetic :oops: . Thankfully I only put about 1/4 of a quart (if that) in, it was just left over from the previous oil change on another car. I did take the valve cover off not to long ago, nothing was black, just brown. It looked like the holes were clear and it was getting adequate oil so I threw the valve cover back on and did not give it much thought after that. I am concerned that the pan is sludged and is causing poor oil circulation. The hoses are pressurizing and the vehicle seems to be staying cool. I just go off the actual temps from the OBD right now, because of a short somewhere causing the needle to be inaccurate on the gauge.
Nah, you can mix any and all motor oils to your heart's content. They are all the same stuff, a base stock of hydrocarbons either distilled from crude oil (mineral oil) or manufactured (synthetic) mixed with an additive package which makes up a small percentage of the whole volume. The small volume of the additive packages aren't going to render two oils immiscible.

The exhaust manifolds have an "accordian" section under the heat shield. These tend to get holes in the creases of the accordion. If the hole is small it may manifest a "tick" sound. Mine was bigger and was louder than a tick, but I can imagine a small hole making a smaller sound. Just another possibility (which I think was already mentioned, but I thought I add to it).

As already mentioned, a mechanic's stethoscope is your friend.

Brett
 

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Discussion Starter #17
It does not really make the noise when it is cold, after warm up the noise is there. It is very faint and happens about every 1/2 second, on both sides too and sounds very mechanical. I am wondering if dropping the pan and cleaning the sludge out might help, probably dramatically :) (will have to wait until the next oil change). Thanks for the advice, especially on the oil.
 
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