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smiggy *
Joined: 15 Jan 2011 Posts: 48 Location: mansfield notts
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Posted: Wed Apr 06, 2011 9:01 Post subject: ticking noise |
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hi all first post i have ever done so here goes 3,i diesel 1993 trooper got it in december and love it the problem i have is was told when i got it exhaust was blowing checked this but seems ok . Checked manifold gasket this also ok .on tickover ok reving up ok but when driveing and engine under load i get what i can only describe os a loud ticking noise from engine could this be tappets? or do u have any other ideas thanks in advance |
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Posted: Wed Apr 06, 2011 9:01 Post subject: Google Ads keep this community free to join! |
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leeanson ****
Joined: 03 Feb 2006 Posts: 351 Location: northumberland
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Posted: Wed Apr 06, 2011 22:01 Post subject: |
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sounds like what my 2.8td is doing now aswell. my mechanic says its nackerd but im not convinced, im getting someone else to check timing and injectors, ive had no response to my problem from people on here and i thought i would. i hope you have more look mate. _________________ The secret is not to tighten things to tight coz you can never get the BA****DS off again. HE HE...
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smiggy *
Joined: 15 Jan 2011 Posts: 48 Location: mansfield notts
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Posted: Wed Apr 06, 2011 22:59 Post subject: |
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thanks very much for your reply i am going to change manifold gasket tomorrow will post if this cures it |
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Rhanagar Lifetime member
Joined: 12 Jan 2010 Posts: 4861 Location: Preston, Lancs.
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Posted: Wed Apr 06, 2011 23:55 Post subject: |
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Could just mean the top of the push rods are a little worn and the tappets need adjusting. Don't ask me how though, but I am sure there is a how2 on here somewhere. _________________ 1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition
Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS
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Malcolm Lifetime member
Joined: 22 Feb 2009 Posts: 834 Location: Great Yarmouth Norfolk
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Posted: Thu Apr 07, 2011 6:00 Post subject: |
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Have you got any evidence of soot round the manifold? If you have got a leak from one cylinder only then this can give strange noises under load.
You may want to spend a little time with a mirror all round the underside of the manifold to check this out.
Could allways change manifold gasket an see as they are not too expensive from a factors, only problem is there is allways the risk of snapped studs with exhaust manifolds. _________________ Never let a meal go by----Empty sacks dont stand up!!! |
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smiggy *
Joined: 15 Jan 2011 Posts: 48 Location: mansfield notts
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Posted: Thu Apr 07, 2011 20:23 Post subject: |
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hi all not a hapy camper tried to do manifold gasket today All 4 top bolts were slack thought great i am on a winner here. How wrong can u be. I think bottom bolts had been put on with inch drive impact wrench.After 6 hrs had 3 of the bottom bolts loose BUT HOW DO U GET A SPANNER ON THE ONE BEHIND TURBO after 2 hrs trying to slack this one off and failing gave in and put it back together in the hope that with the bolts being slack in the first place GOD would smile on me and it would be ok .Took of EGR pipes and blanked off set tappits. All going good rebuilt it all.Spent 10 mins praying fired the beast up on tickover and low revs upto about 2000 sounds nice and quiet.took it for roadtest tick tick tick decided to pull over and CRY for 5 mins.so not cured fault but had alot of fun.So will try again over the weekend. |
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Rhanagar Lifetime member
Joined: 12 Jan 2010 Posts: 4861 Location: Preston, Lancs.
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Posted: Fri Apr 08, 2011 8:57 Post subject: |
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The one under the turbo is a B%$£h. I got to it by moving the aircon pump out of the way. Belt off, undo mounting bolts (good luck with the one at the back at the bottom. That one is easier if you take the battery out and swing the unit to the left as far as it will go. Remember your radio code if you need it) Just remember to NOT UNDO THE AIRCON HOSES! _________________ 1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition
Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS
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Gribble *******
Joined: 11 Oct 2007 Posts: 8448 Location: Holset H221W
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Posted: Fri Apr 08, 2011 20:23 Post subject: |
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Possibly -
Tappets have worn but put a dip on the rocker arm and a bump on the valve stem so the clearence is the high bit of the bump to the rocker arm so set them all then go 5 thou less but check there is some clearence before a test run.
Part of the exhaust expanding due to heat under load in a joint or the pipes rusted thin.
Piston(s) touching the head due to worn big ends or small ends .
Common on a ricardo style piston with big miles .
Drop the sump to check and wind some new ones in .
If you have the head off it will be a clean carbon free area on the piston crown edge as a telltale .
Depends on the tone of the noise ,to experienced ears its normally plain ,is it a light tick under full power or a constant one from warm . |
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smiggy *
Joined: 15 Jan 2011 Posts: 48 Location: mansfield notts
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Posted: Fri Apr 08, 2011 20:44 Post subject: |
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thanks for your input Gribble. Ihope its none of them sounds expensive had another go at manifold gasket today have got new one on will finish rebuilding tomorrow.Will post tomorrow and let u know if its cured. |
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leeanson ****
Joined: 03 Feb 2006 Posts: 351 Location: northumberland
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Posted: Fri Apr 08, 2011 21:33 Post subject: |
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have you checked your timing mate ? ive had mine checked couple of days ago and it 3 degrees out which can be enough to make it knock. so im going to put a timing belt kit on and see if that cures it, mine sounds like a valve knock and could just be coz timing is out, so going to try the belt kit before having head off for valves, as im not sure if valves can be tightened or adjusted if one has come loose if you no what i mean.
sorry for rabbiting on but it could be something you should check before taking everything to bits.
ill keep you posted you do the same if you dont mind pal _________________ The secret is not to tighten things to tight coz you can never get the BA****DS off again. HE HE...
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smiggy *
Joined: 15 Jan 2011 Posts: 48 Location: mansfield notts
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Posted: Sat Apr 09, 2011 14:29 Post subject: |
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Happyness is a trooper that does not sound like Big Ben. Put my baby back together. Started her up sounds ok took her out NO TICKING boy am i happy camper.So it seems i got lucky no major issues just a blown gasket. Thanks very much to all of you for your thoughts and info. |
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Malcolm Lifetime member
Joined: 22 Feb 2009 Posts: 834 Location: Great Yarmouth Norfolk
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Posted: Sat Apr 09, 2011 14:38 Post subject: |
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Don't you just love a happy ending _________________ Never let a meal go by----Empty sacks dont stand up!!! |
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Rhanagar Lifetime member
Joined: 12 Jan 2010 Posts: 4861 Location: Preston, Lancs.
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Posted: Sat Apr 09, 2011 20:18 Post subject: |
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Nice one! _________________ 1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition
Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS
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eddyb203 Newbie
Joined: 16 Aug 2018 Posts: 2 Location: United Kingdom
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Posted: Thu Aug 16, 2018 12:18 Post subject: Isuzu trooper promblem |
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Hi my isuzu trooper has been standing for about a year it over heated because off water pump failure I've now changed both head gaskets and had heads skimmed and I've put a new belt water pump on I've started it up and it's making a knocking noise I put 10w 40 engine oil in and also when it warms up its like its missing a bit and going out cut out but it doesnt it also back fires any idea what this could be please?? |
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