2002 Jackaroo V6 3.5L Engine Ticker

Submitted: Tuesday, Apr 19, 2005 at 08:51
ThreadID: 22184 Views:2907 Replies:4 FollowUps:4
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My 2002 Jackaroo has 49K on the clock (I bought it about 2K ago) and in that time the engine has developed a somewhat noticeable "tick tick tick" noise at idle (whilst driving not noticeable). Not sure where the noise comes from, ie. whether it is injector noise, lifters, etc.

Anyone out there with a similar model with similar symptoms or does anyone know whether this is even something to worry about ?
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Reply By: BenSpoon - Tuesday, Apr 19, 2005 at 10:17

Tuesday, Apr 19, 2005 at 10:17
Came across a similar problem with a number of ford falcons- turned out to be the tappets/lifters on all of them. Also had a subaru with the same drama, but it started ticking only after you pushed it a bit too hard.
AnswerID: 107353

Follow Up By: GlenH - Tuesday, Apr 19, 2005 at 10:23

Tuesday, Apr 19, 2005 at 10:23
I assume there was no need to replace the lifters ? (unless they get real bad I assume).

Would using a better quality synthetic oil help quiet them down ?
FollowupID: 364278

Follow Up By: BenSpoon - Tuesday, Apr 19, 2005 at 10:33

Tuesday, Apr 19, 2005 at 10:33
The falcons I came across were either mates cars or family members cars, so I couldnt give an answer as to the effects of the oil, but I assume it didnt help as they all were taken to mechanics in the end to have the tappets adjusted. As I understand, the main cost was in the labour.
If youve got a car manual and a free day or 2 on the long weekend, I guess it couldnt hurt you to check all the specs.
FollowupID: 364279

Reply By: Diamond (Vic) - Tuesday, Apr 19, 2005 at 21:36

Tuesday, Apr 19, 2005 at 21:36
i may be wrong but i think the 3.5 use shims instead if the typical rocker/lifter set up where the cam runs straight onto the valve with shims underneath to adjust the gap.
it is aparently a very expensive job.
people on this site recoment waitung till the cam belt needs done and do the whole lot together.
member brad is pretty cluey on the 3.5 jacks.
AnswerID: 107454

Follow Up By: 80scruiser - Tuesday, Apr 19, 2005 at 22:09

Tuesday, Apr 19, 2005 at 22:09
They are bucket type set up and very rarely get out of adjustment.
I would run an engine flush through the engine. Something like Nulon and then refill the sump with a 15w40 or even a 10w30 grade oil. I think the Jacks and the Rodeos state to run a 20w50 oil. The lighter oils move around alot quicker and give better fuel economy.
It is hard to get your head around a thinner oil but it is great stuff.
Does your car have a good service record.
I have had one that wasn't serviced and blocked up the oil pick up starving the engine for oil. Not a pretty sight.
Best of luck
FollowupID: 364356

Reply By: Savvas - Wednesday, Apr 20, 2005 at 22:15

Wednesday, Apr 20, 2005 at 22:15
If it has ticking at 49000, thats not normal. It's not serious, but shouldn't be there. Mine has 97000 and no undue noise out of it. I'm aware of others that have got to 150000 with no valve noise yet.

My guess is that oil changes haven't been kept up to it. I'd get an oil change done pronto, using a top grade synthetic or semi-synthetic oil.

I'm currently using Penrite HPR5 in mine during the colder months, and HPR10 during summer.

Until last year, I was changing every 3 months/5000kms. I now change every 4 months or 7500kms, rather than wait 6 months/10000kms.
AnswerID: 107608

Reply By: Member - Bradley- Thursday, Apr 21, 2005 at 00:04

Thursday, Apr 21, 2005 at 00:04
yeah it is probably running real shiza oil and its broken down (the oil).

just do a change and start running some good gear in her. Yes the bucket and shim doesnt go too badly out of spec, i'm waiting till 160 to do the belt and valves all in one go.

Mine has 147000k on it and gets a bit ticky towards the end of the service cycle, but new oil quietens it down again straight away. I run a 5w50 sl fully synthetic oil in mine and it loves it.
AnswerID: 107623

Follow Up By: Willykj - Thursday, Apr 21, 2005 at 18:07

Thursday, Apr 21, 2005 at 18:07
A also use a Fully synthetic 5/50 oil on my 3.5 Jack. Great oil & mine has done 110K & has no noise at all.

FollowupID: 364597

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