 |
|
|
|
|
|
|
|
|
|
twindongs
Fordmods Parts Gopher
Posts: 59
Joined: 20 Apr 2008
Location: perth WA, Australia
View User Gallery (0)
|
 Posted: Mon Nov 03, 2008 9:42 pm Post subject: I have a whirring noise!! el xr6 |
 |
|
Hey guys
About 2 weeks ago when i pulled up at home after a short drive i noticed a bit of a high pitched whirring noise coming from the engine bay of my car. i thought it was weird, turned the car off and back on and it went away. It then started to come back, but intermittantly- the only time you can hear the noise is when the car is still (prolly does it while moving i guess but it is just drowned out by other noises) and so i noticed it pulling up at lights etc at first not all the time but now it does it whenever the car is sitting still once warm. it doesnt make the noise when its cold.
So the next thing i did was start the car without the belt on to eliminate those things (alt, ps pump etc) and the noise stayed. Soo now my next problem is trying to figure out where else the noise could come from. It really is hard to pick out exactly which area but it does seem rather loud whilst under the car around the crank- but im not sure if the crank/HB can make this sort of noise like does it have bearings?? (ps it has also been leaking oil around the crank recently) I guess it would make sense if its possible because the whirring does sound like something rotational- not an air leak sorta thing.
okay so here are the key factors!
NOISE:
- Rotational whirring sound moves up and down with lower revs (below 2000rpm) whilst car is stationary- could possibly be making the noise in all revs its just i cant hear it over everything else!
- Continues to make noise with belt off
- Doesnt make noise when cold
- Slowly getting worse each drive basically
- Quite loud when under the car- crank/harmonic balancer maybe??
What do you think because i really have no clue where to go from here!
Thanks heaps for any help!
Dame |
|
| Back to top |
|
|
|
|
|
|
|
|
|
joolz
Fordmods - Getting Side Ways
Age:34
Posts: 2503
Joined: 06 Nov 2004
Location: Melbourne VIC, Australia
View User Gallery (11)
|
| Posted: Mon Nov 03, 2008 9:59 pm Post subject: |
|
|
| More than likely its the timing chain. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
twindongs
Fordmods Parts Gopher
Posts: 59
Joined: 20 Apr 2008
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Mon Nov 03, 2008 10:09 pm Post subject: |
|
|
| ohh yeah the timing chain wouldnt be more or a rattling noise would it? because this noise is quite high pitched- sam sorta sound as a stuffed bearing |
|
| Back to top |
|
|
|
|
|
|
|
|
|
lil_lincoln
Fordmods - Getting Side Ways
Age:18
Posts: 592
Joined: 10 May 2007
Location: Melbourne VIC, Australia
View User Gallery (0)
|
| Posted: Mon Nov 03, 2008 10:12 pm Post subject: |
|
|
sure its not the cat?? mine made that "whirring" noise once i replaced it no more whirring noise???? didnt do it when cold only hot. was reqally loud to so i thought it was from the engine but nope  |
|
| Back to top |
|
|
|
|
|
|
|
|
|
Krytox
Technical Contributor
Age:29
Posts: 2730
Joined: 20 Mar 2005
Location: Seaford State: VIC, Australia
View User Gallery (2)
|
| Posted: Mon Nov 03, 2008 11:40 pm Post subject: |
|
|
As above, more than likely its the timing chain or guide.
In my case it was the Aux shaft bolts that came loose breaking the guide and forcing it through the timing cover. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
FordFairmont
Fordmods - Getting Side Ways
Posts: 3650
Joined: 08 May 2007
Location: Sunny QLD, Australia
View User Gallery (2)
|
| Posted: Tue Nov 04, 2008 6:57 am Post subject: |
|
|
| snapped plastic chain guide |
|
| Back to top |
|
|
|
|
|
|
|
|
|
TROYMAN
Technical Contributor
Age:34
Posts: 3095
Joined: 07 Nov 2004
Location: South Western Sydney NSW, Australia
View User Gallery (20)
|
| Posted: Tue Nov 04, 2008 7:20 am Post subject: |
|
|
hi
check your dizzy isnt starting to seize?
ive had a dizzy that was tight and was starting to seize and it made a whirring noise because it was putting strain on the aux shaft and cam chain...
or cam chain guide broken and has wedged itself somewhere??
or a posable noisy oil pump in your transmision ??(assuming its auto)?? |
|
| Back to top |
|
|
|
|
|
|
|
|
|
joolz
Fordmods - Getting Side Ways
Age:34
Posts: 2503
Joined: 06 Nov 2004
Location: Melbourne VIC, Australia
View User Gallery (11)
|
| Posted: Tue Nov 04, 2008 7:46 am Post subject: |
|
|
| twindongs wrote: | | ohh yeah the timing chain wouldnt be more or a rattling noise would it? because this noise is quite high pitched- sam sorta sound as a stuffed bearing |
The timing chains dont just come loose and rattle. I had the same whistle noise and it was the timing chain running over worn guides. I just bought a kit which is basically everything including the tensioner. Noise gone. For a quick check remove the oil filler cap and have a listen. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
green car
Fordmods - Getting Side Ways
Age:31
Posts: 567
Joined: 27 Sep 2007
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Tue Nov 04, 2008 11:57 am Post subject: |
|
|
Didnt you install a cam not too long ago in the xr?
Maybe its noisy because of the extra load on the valve train now. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
FordFairmont
Fordmods - Getting Side Ways
Posts: 3650
Joined: 08 May 2007
Location: Sunny QLD, Australia
View User Gallery (2)
|
| Posted: Tue Nov 04, 2008 12:14 pm Post subject: |
|
|
| green car wrote: | | Didnt you install a cam not too long ago in the xr? |
was thinking about that....
did you reset the tensioner when swapping cams, or did you try keeping tension on the chain/cam gear instead?
if its the latter, then its possible the tensioner sprung out & overtightened the chain causing guides to snap, or aux shaft probs etc
but its all guessing until you have a look |
|
| Back to top |
|
|
|
|
|
|
|
|
|
twindongs
Fordmods Parts Gopher
Posts: 59
Joined: 20 Apr 2008
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Tue Nov 04, 2008 6:10 pm Post subject: |
|
|
yep i did put a cam in not to long ago and we did reset the tensioner.
i removed the filler cap while it was makin the noise and stuck my ear over it, to be honest it didnt sound like it was coming from in there. ill have to take the rocker off though and get the torch into it. how many plastic chain guides are there?
if it does turn out to be a guide is it a big job to replace them and where do i get a kit with everything in it??
cheers! |
|
| Back to top |
|
|
|
|
|
|
|
|
|
low_ryda
Fordmods - Smokin em up
Posts: 257
Joined: 03 May 2007
Location: south coast NSW, Australia
View User Gallery (4)
|
| Posted: Tue Nov 04, 2008 6:26 pm Post subject: |
|
|
get the longest, biggest screw driver you can find and put the big end on your ear and start pointing the small end around the engine bay (contacting different points) you will soon find where it's coming from.
i over tensioned my chain once it didn't sound real nice, best description would be ultimate load and friction. loosened it off and had rattle re-adjusted and no dramas.
and on the dampners i took my last engine apart (C.O.D: cracked number 1 compression ring caused by detonation caused by blocked cat)
and the bottom tensioner had been sitting in the sump for quite some time and the chain had worn in it's own relief into the timing case and it still wasn't audibly evident. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
twindongs
Fordmods Parts Gopher
Posts: 59
Joined: 20 Apr 2008
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Tue Nov 04, 2008 10:10 pm Post subject: |
|
|
ok well it turns out that it is the thrust bearing!!
But its got me stumped because it not the usual TB problem because the noise doesnt go away when you clutch it, it only goes away when ya get your foot in behind the clutch pedal and pull it towards you which was just pure luck that my dad tried doing that!
What does this mean, like i cant quite get my head around why it has done what it has.
its a new thrust bearing too, only put the new clutch kit in about 2-3 months ago! |
|
| Back to top |
|
|
|
|
|
|
|
|
|
bushman
Fordmods Stock as a Rock
Age:19
Posts: 130
Joined: 20 May 2007
Location: Brisvegas baby QLD, Australia
View User Gallery (0)
|
| Posted: Wed Nov 05, 2008 8:18 am Post subject: |
|
|
| well at least its not a death rattle from your donk |
|
| Back to top |
|
|
|
|
|
|
|
|
|
green car
Fordmods - Getting Side Ways
Age:31
Posts: 567
Joined: 27 Sep 2007
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Wed Nov 05, 2008 12:38 pm Post subject: |
|
|
Could be the spigot bearing, did you replace that?
Was the pressure plate new? |
|
| Back to top |
|
|
|
|
|
|
|
|
|
twindongs
Fordmods Parts Gopher
Posts: 59
Joined: 20 Apr 2008
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Wed Nov 05, 2008 6:13 pm Post subject: |
|
|
i didnt replace the spigot but i do have a spare one here if it looks like that once i pull it apart.
yeh the pressure plate was a newy
cheers |
|
| Back to top |
|
|
|
|
|
|
|
|
|
green car
Fordmods - Getting Side Ways
Age:31
Posts: 567
Joined: 27 Sep 2007
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Fri Nov 07, 2008 11:09 am Post subject: |
|
|
You are meant to do the spigot when you do the clutch, i would replace it or you will wish you did later.
Its hard to get out thats why it never gets done.
You do realise the spigot supports the main shaft of the gearbox. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
KRUPTD
Fordmods - Getting Side Ways
Age:25
Posts: 463
Joined: 21 Nov 2005
Location: griffith NSW, Australia
View User Gallery (25)
|
| Posted: Sat Nov 08, 2008 1:15 pm Post subject: |
|
|
Yeah is the spigot noise as you describe the symptoms.The weak forks on the pressure plates are getting weaker and not returning the thrust bearing to its place.Just make sure as others have mentioned to replace the spigot bearing aswell it is a roller type bearing im pretty sure ford keep them in stock.Also clean up the input shaft where the thrust bearing slides on and make sure you lubricate the input shaft and inside the thrust bearing.
Also make sure your clutch cable moves freely whne disconnected from the clutch fork if it doesnt,replace it.With heavy clutch cables and heady duty clutches you tened to crack the firewall and crack your pedal box if they havent been reinforced. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
twindongs
Fordmods Parts Gopher
Posts: 59
Joined: 20 Apr 2008
Location: perth WA, Australia
View User Gallery (0)
|
| Posted: Sat Nov 08, 2008 2:47 pm Post subject: |
|
|
All fixed,
Put a new TB in last night. didnt replace the spigot though but that definatley wasnt the problem. probly should have a guess but didnt read till just now that its a good idea haha ah well can get everything i and out in about 3 hours with 2 people now so it isnt the end of the world if it packs up also.
So faulty thrust bearing was to blame, gona send it back under warranty.
i did clean the input shaft and re-grease it on the part where the bearing rubs and put grease inside the bearing (has already pulled out before because we didnt put grease in there and it was getting a heap of friction!)
thanks for all the help! |
|
| Back to top |
|
|
|
|
|
|
|
|
|
KRUPTD
Fordmods - Getting Side Ways
Age:25
Posts: 463
Joined: 21 Nov 2005
Location: griffith NSW, Australia
View User Gallery (25)
|
| Posted: Sat Nov 08, 2008 5:34 pm Post subject: |
|
|
| A thing to watch out for on the T5 boxes holden or fords,they wear out the input shaft wear they slide and can create bad clutch operation,at work we have done a few where we couldnt get onto any new input shaft housings,so we had them tig welded over to build them up and have them machined. |
|
| Back to top |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
