View previous topic :: View next topic |
Author |
Message |
signetone *
Joined: 06 Dec 2005 Posts: 21 Location: Mid Wales
|
Posted: Sun May 14, 2006 6:24 Post subject: 3.2 Petrol Monterey - Sticking Hydraulic Tappets |
|
|
Sticking Hydraulic Tappets on one side.
I have flushed and changed the engine oil, after trying a product for this problem from Halfords.. I now have Mobile one oil in, to clear the problem. It's only the one side - the other is fine. It has been like this since I bought it, sounds like a diesel. Only do short trips and none at high speed.
The oil pressure seems fine, under the 85 mark.
Any thoughts please?
Thanks
Brian _________________ 1997 Monterey 3.2 v6
Diamond Auto |
|
Back to top |
|
|
Google Sponsor
|
Posted: Sun May 14, 2006 6:24 Post subject: Google Ads keep this community free to join! |
|
|
|
|
Back to top |
|
|
shyster *
Joined: 04 Nov 2005 Posts: 35 Location: Nelson
|
Posted: Sun May 14, 2006 19:40 Post subject: |
|
|
Brian are you sure its the tappets , if it sound that bad it may be the same problem as i had on my 3.2 trooper which was a faulty automatic timing belt tensioner . |
|
Back to top |
|
|
THE QUIET ONE *****
Joined: 13 Feb 2006 Posts: 575 Location: bury /manchester
|
Posted: Sun May 14, 2006 23:12 Post subject: |
|
|
im glad to c some petrol troopers on ere
yes that could b one problem but if u dont get it hot enought
the flush might not of worked
try wynns tappet fluid asdas do it for £3.00
does the noise sound like a growl or is it ttttttttttttttttttttttttttttttttttttttttttttttt
also check spark plugs for right gap and heat range for that this also sounds like tappetty sounds i had that problem once it was my plugs _________________
mk1 2.8 ex skippy
mu 3.1 xs turbo
bendy bus
SCUM RUN 2010 |
|
Back to top |
|
|
signetone *
Joined: 06 Dec 2005 Posts: 21 Location: Mid Wales
|
Posted: Sun May 14, 2006 23:45 Post subject: |
|
|
spike wrote: |
im glad to c some petrol troopers on ere
yes that could b one problem but if u dont get it hot enought
the flush might not of worked
try wynns tappet fluid asdas do it for £3.00
does the noise sound like a growl or is it ttttttttttttttttttttttttttttttttttttttttttttttt
also check spark plugs for right gap and heat range for that this also sounds like tappetty sounds i had that problem once it was my plugs |
Hi Thanks
It's the ttttttttttttttttttttt's and it's from the top of that side of the engine [RHD - passenger side]. I have changed the plugs and before putting in mobile one did try Wynns fluid and then used flushing oil. I have not had the vehicle that long, the oil was very dirty on purchase but I did not think the noise was as bad then. I did think when the vehicle was going up say 30 degree slop, that the tappet noise stopped just for a fraction!
I was hoping that it would cure itself - it sounds like a diesel!
Thanks Again
Brian _________________ 1997 Monterey 3.2 v6
Diamond Auto |
|
Back to top |
|
|
Philp *******
Joined: 12 Oct 2004 Posts: 3869 Location: Shropshire
|
Posted: Mon May 15, 2006 8:37 Post subject: |
|
|
A leaking exhaust gasket can also make that sort of taptaptap kinda noise, it did on my V8, worth a squint to see if theres any soot marks or if you can feel a blow around the manifold. _________________ Phil
96 or is it a 98 Isuzu Bighorn Lotus |
|
Back to top |
|
|
Chris01 **
Joined: 13 Dec 2004 Posts: 108
|
Posted: Mon May 15, 2006 12:51 Post subject: |
|
|
Mine does this intermittantly as well, strangely it gets worse after an oil change then gets better after about 500miles. You need to get it warm, sit on the motorway at 90 for half an hour, that'll fix it |
|
Back to top |
|
|
signetone *
Joined: 06 Dec 2005 Posts: 21 Location: Mid Wales
|
Posted: Tue May 16, 2006 22:36 Post subject: |
|
|
Chris01 wrote: |
Mine does this intermittantly as well, strangely it gets worse after an oil change then gets better after about 500miles. You need to get it warm, sit on the motorway at 90 for half an hour, that'll fix it |
Hi Thanks
Put in Mobile one - it's a bit of a drive to a motorway! Mid Wales here, back lanes and bendy 'A' roads'. Longest journey so far was 8 miles, then a bending 'A' road. I hope the tappet noise will go - I was hoping it would just clear one day - I was hoping it would not end in a top end strip. Think the previous owner must have done little servicing - the oil was black and needed a flush. The tappets on the one side have got louder with the clean oil but the power has increased also!
Thanks All
Brian
Any more comments would be appreciated. _________________ 1997 Monterey 3.2 v6
Diamond Auto |
|
Back to top |
|
|
kindwarf *
Joined: 01 Apr 2006 Posts: 31 Location: huddersfild
|
Posted: Wed May 17, 2006 2:06 Post subject: tappet |
|
|
This seemes to be a common problem Mine does it for a about 20 second s on starting then quietens but does not completely go away I'v tried an aditive and I think it done some good, mine was illtreated before I got it and I dont think the oil was chainged regularly or the right grade of oil used Ive only had it a few monthes gave it a full sevice with right oil ect I will run for 3000 miles and change it again and see if it gets better. _________________ I love my country but fear my government.
94 swb trooper 3.2 petrol auto |
|
Back to top |
|
|
Chris01 **
Joined: 13 Dec 2004 Posts: 108
|
Posted: Wed May 17, 2006 8:39 Post subject: |
|
|
I think we're all wasting our time, this engine seems to do this anyway, i've had mine 7 years and 80K miles and it s always done it. I have changed the oil very 5K, the noise just comes an goes. Strangely now at nearly 140k its quieter than ever.
I think the answer is ear muffs or pretend its the diesel, but don't bother stripping the top end, it'll just be money down the drain. |
|
Back to top |
|
|
KENM Newbie
Joined: 14 May 2006 Posts: 1 Location: South Shropshire
|
Posted: Mon May 29, 2006 21:47 Post subject: |
|
|
Are u sure youve got hydra. taps. Most of them are shimmed n no amount of flushing is gonna cure that. Ken |
|
Back to top |
|
|
sgarre13 *
Joined: 26 Jan 2006 Posts: 29
|
Posted: Fri Jun 02, 2006 20:30 Post subject: |
|
|
Our 1996 Monty taps like a good 'un also. I tried the Wynns tappet fix stuff but to no effect. I spoke with an oil expert I know he suggests flushes and tappet fluids are a waste of time anyway. Best to use the correct grade of oil and change regularly. He did suggest using a API-CH4 truck oil (MB Sprinters use it also) since the detergency on those type of oils is very good and lasts a long time because your average heavy truck goes for a lot longer between services, but keep well within the 10000mile interval. The detergency level helps to clean up the tappets in a more gentle way and keep the crud suspended and dispersed in the oil, unlike a flush which is basically toluene and a light oil which would flush it out, only for it to get stuck as a coagulated lump in your oil pump relief valve, and then BANG no oil pressure. I would like to know what measurable benefit sticking a coke can's worth of toluene into your engine for 10mins, as opposed to using a decent oil for 400 engine hours, actually gives you.
At the moment I'm sticking with a decent Semi-synth and 5000mile or less oil change interval. Noise died down after the last one but is coming back again now so due for another change. _________________ Vauxhall Monterey
It's not Jack and it's not cheese
It's just overlooked |
|
Back to top |
|
|
Chris01 **
Joined: 13 Dec 2004 Posts: 108
|
Posted: Mon Jun 05, 2006 13:46 Post subject: |
|
|
Isuzu reccommend you use Mobil-1 0-40W as the fix for tappet noise, its a bit too expensive for me, so I just put up with the noise which isn't too bad on mine and comes a goes a bit. |
|
Back to top |
|
|
sgarre13 *
Joined: 26 Jan 2006 Posts: 29
|
Posted: Thu Jun 08, 2006 11:25 Post subject: |
|
|
Just done another oil change with 10W40 Semi Synthetic, no flushing just straightforward drain for 20minutes and refill and new Fram (badged as Halfords) filter. Noise gone right down from the tappets. Engine sounds sweet as a nut.
Also took the opportunity to fit a Fumoto drain valve. Seems to fit and work a treat.
Another change in 3 - 4000miles or when I hear the tapping again I reckon.
No need for Mobil 1. _________________ Vauxhall Monterey
It's not Jack and it's not cheese
It's just overlooked |
|
Back to top |
|
|
Peterjday ***
Joined: 28 Apr 2004 Posts: 249
|
Posted: Fri Jun 09, 2006 11:12 Post subject: |
|
|
The 3.2 hydraulic tappet noise has been the subject of more than one previous thread.
Isuzu issued a bulletin that explained both the problem and the cure, and you can find a reference for the bulletin to download from the web and a text only transcript if you read the previous threads.
Briefly, the problem is build up of "varnish" from degraded oil in the hydraulics that cause the tappet piston to stick; (and sometimes the oil pressure relief valve[s]).
Recommendation is to use Mobil 1, and if that fails, to strip and clean (procedure described in the Isuzu bulletin). Don't expect a miracle cure. If it has taken 10 years to build up, it might take a year to break down and cure. I went down the Mobile 1 route as recommended and it does work, but it takes a long while. _________________ Peter |
|
Back to top |
|
|
|