Should I be worried?.... bottom end going?

[WallaceGlanza]

Right as usual I'm paranoid about there being something wrong with the glanza!:homer:

There's a couple of things; a few weeks ago when driving I was noticing a kind of grumbling noise at low rpm and only off boost, especially when the car was under load ie going uphill in a low gear, the noise was very noticeable. I drove over 100 miles on this trip with it making the noise but nothing came of it. The noise could be due to the poly engine mounts and/or the fact that my exhaust is leaking but I'm not so sure.

I've since done a few hundred miles and the noise isn't as noticeable but is still there at times, I also think the car feels a little more sluggish off boost than usual, on boost its still pulling very well.

The other thing is the oil temp seems to be higher than it used to be, today it was sitting at 95 degrees whilst sitting at 75mph on my way home (40mins at that speed), I had never noticed the oil go over 90 before except when really pushing it.

So any thoughts or things I can check, I was going to do a compression test tomorrow for the sake of it but as I said the car is fine when boosting there is just the slightly grumbly noise low down (not always though) and higher oil temp?

 

[steveep82]

Get the oil out and see if it has a silver sheen or any signs of metal deposits. Does it sound a tiny bit offbeat? Ie like a subaru?

 

[scot-ish]

yup, i would advise a change, run it through a magnet, for fillings, not to worry you, but thats sounds of bearings gettin hot,

 

[WallaceGlanza]

Get the oil out and see if it has a silver sheen or any signs of metal deposits. Does it sound a tiny bit offbeat? Ie like a subaru?

I forgot to mention I had changed the oil not long before I noticed the noise, its only done about 1k since then but I will check it. When the noise does occur it is a little scoobyish it is like theres a bit of extra vibration from the engine or something rubbing.

yup, i would advise a change, run it through a magnet, for fillings, not to worry you, but thats sounds of bearings gettin hot,

That's what I was kinda thinking too, would make sense with the oil temp going up.

 

[scot-ish]

what oil did you put in it?? was there any signs in the last oil change??

 

[WallaceGlanza]

No looked fine when it came out, its the same oil as I've been using for years - silkolene xtr (semi synth) 10w40.

 

[Sparky]

The slightly off beat idle sounds to mee like rings.

Mine and my mates Glanza both sounded like it before they gave up the ghost.

Does it you oil alot or but it out through the breather when boosting it?

Also take the breather or dipstick out when its running see if any smoke comes out, if so could be the rings or piston.

 

[clarkytrd]

mm was gonna ut up a thread bout this, im getting the same kind of noises as u mate!!

kinda sounds like a scooby when driving real slow...

but now i remember my sisters 2year old child put a little bouncy ball into my exhaust!! (little bo11ox :haha

would that cause it to rumble like a scooby?!?

kinda sounds like something is rubbing too...!?

 

[WallaceGlanza]

The slightly off beat idle sounds to mee like rings.

Mine and my mates Glanza both sounded like it before they gave up the ghost.

Does it you oil alot or but it out through the breather when boosting it?

Also take the breather or dipstick out when its running see if any smoke comes out, if so could be the rings or piston.

It uses a little oil but nothing comes out the breather on the rocker cover, its not really offbeat when normally running, its just that slight noise under load - its certainly nothing like when my old engine went and was running on 2 cylinders.

 

[Rory]

Not sounding good buddy.

Drop the oil thats in it, and see if you can see any metal flakes in it.
If there is, the bearings are on there way out, and thats how your temps are up.

If the oil looks clean, then i would head for a compression test and see how that comes back.

Either way, possile rebuild on the horizon.

 

[WallaceGlanza]

Not sounding good buddy.

Drop the oil thats in it, and see if you can see any metal flakes in it.
If there is, the bearings are on there way out, and thats how your temps are up.

If the oil looks clean, then i would head for a compression test and see how that comes back.

Either way, possile rebuild on the horizon.

Typical! Well I'll do both tomorrow and see how it looks, cheers guys.

 

[weakboy2]

TBH i think everyone is getting a little ahead of themselves, if it was the bottom end, it would have most certainly got ALOT worse doing 75mph for 40mins. Do you have an oil pressure gauge?

Also if its big ends it will do it on the spot, you should be able to "play" with the revs to get the noise from big end knock.

The fact that your exhaust is blowing would maybe point to the sound? also how long have the poly mounts been in? mine grumbles and vibrates and all sorts low down lol. Nothing wrong with my engine though.

 

[WallaceGlanza]

TBH i think everyone is getting a little ahead of themselves, if it was the bottom end, it would have most certainly got ALOT worse doing 75mph for 40mins. Do you have an oil pressure gauge?

Also if its big ends it will do it on the spot, you should be able to "play" with the revs to get the noise from big end knock.

The fact that your exhaust is blowing would maybe point to the sound? also how long have the poly mounts been in? mine grumbles and vibrates and all sorts low down lol. Nothing wrong with my engine though.

I was hoping somebody might say something like this!

Oil pressure is the same as it always has been - about 4 bar at 75mph, 2 bar idling.

It doesn't make the moise when revving only when under load (also I've tried to get it to make the noise but can't now) , which could be when there would be a bit more vibration, the mounts hadn't been in long before I started noticing the noise maybe only a couple of hundred miles. Also the exhaust has gone through stages of making some very nasty noises with it blowing.

The one thing the exhaust and mounts wouldn't contribute to is the higher oil temps though (water temp is normal btw), for just cruising at 3.5k for 40mins 95 degrees seems a bit high?

 

[weakboy2]

I dont think its that high tbh mate. admittedly if you say its always been 90 and now its going higher then it makes you wonder why. Has it been going to 95 since you changed the oil? maybe the oil level is a tad low? could be a number of things but it is deffo not hot enough to worry about.

Oil pressure sounds good, if the big ends/mains were dying oil pressure would be getting lower as it got worse. Also, big end noise only usually happens when the oil is hot (unless its farked completely) and it would happen every time you drove the car to running temp too.

It almost sounds like you have something resonating somewhere. I panicked after japfest, caned my car round track for 3 sessions. Drove home and had a nasty metallic rattle at a certain RPM point!! turned out to be my decat bracket had came loose and was rattling against the block!

Its always easier to start with the simpler things matey. Deffo worth having a rummage around for loose brackets or stuff fouling up somewhere.

 

[WallaceGlanza]

I dont think its that high tbh mate. admittedly if you say its always been 90 and now its going higher then it makes you wonder why. Has it been going to 95 since you changed the oil? maybe the oil level is a tad low? could be a number of things but it is deffo not hot enough to worry about.

Oil pressure sounds good, if the big ends/mains were dying oil pressure would be getting lower as it got worse. Also, big end noise only usually happens when the oil is hot (unless its farked completely) and it would happen every time you drove the car to running temp too.

It almost sounds like you have something resonating somewhere. I panicked after japfest, caned my car round track for 3 sessions. Drove home and had a nasty metallic rattle at a certain RPM point!! turned out to be my decat bracket had came loose and was rattling against the block!

Its always easier to start with the simpler things matey. Deffo worth having a rummage around for loose brackets or stuff fouling up somewhere.

To start with I thought it was probably just something vibrating or because of the exhaust blowing (it ay also contribute to the sluggish feel off boost) but with the oil temp being a bit higher today and my paranoia I'm worried it could be something else. It has been making the noise for a while but as I said its running fine when on boost and I've certainly not been driving it gingerly either - it was spitting flames on the way to work this morning!:haha:

I'll check the oil and compression tomorrow though, I was also meant to be getting the exhaust sorted tomorrow but the garage I was going to get it done at is useless - thats another story, so I'll get that done soon and see if it changes anything.

Cheers again for the help.

 

[weakboy2]

No worries mate

 

[gorganl2000]

well...from my recollection....when bearings go..they go.....its no inbetween...also, the noise is unmistakeable

and u have driven pretty far, so u would have known by now if they were destroyed

u sure u now getting a little detonation/pinging low down

i guess your tests will give u some insight one way or the other

 

[HYBRID]

if u ask me the heistation hes having could be cause the tps needs allignment, or the lambda sensor is on its way out.. as for the noise ur hearing id do as weakboy & gorganl said & get a few test done yourself/ check if anything is loose.

kon

 

[WallaceGlanza]

if u ask me the heistation hes having could be cause the tps needs allignment, or the lambda sensor is on its way out.. as for the noise ur hearing id do as weakboy & gorganl said & get a few test done yourself/ check if anything is loose.

kon

Well its definately running very rich low down due to the exhaust leak, so it could be that causing the sluggish feel?

The fact that it has had the noise for a while now and hasn't dramatically gone is making me think/hope there isn't a major problem but still the oil temps yesterday had me more concerned although it was a bit hotter but still....

I'll get the tests done in a bit.

 

[WallaceGlanza]

Due to me being lazy and busy I only just got round to doing a few little checks yesterday;

Oil looks ok and will be due a change soon anyway and compression is healthy at 180 across the board (pretty much all exactly the same).

The oil temp is still sitting higher but it doesn't get higher quicker than it used to, it just creeps up over long runs. The grumbly noise is still there, occasionally - but so is the hole in the exhaust, that will be getting sorted this weekend so I'll see if that makes a difference.

I've also get a new radiator on the way to see if that helps with the temps - although the water temp seems as it always has been. Overall its running fine though so it maybe is just my paranoia......