Motor Sounding Sus

Post by **bushpig59** » Wed Jan 25, 2006 11:34 pm

Hi everybody its a newbie with a Suzuki SJ70 Engine G13BA (Bugger All)
Just got the bug bad 2" OME Lift (Really a 10" plus of the ground) Need a bloody ladder to get to ground level.. BFG Muddies. New leads filter etc etc goes like the clappers here in Geelong Vic (Mexico for those who dont live here)..........Love the site love the posts....... I have a little problem with the zook... There is a distinct Deisel sound coming from the motor under acceleration.. Took it to the brother in law mechanic of 20years says its normal to sound like this took it to another mech (the guy did my OME 2"lift )
Says its ok .... I'm still not convinced as they are not zook owners... Is it a lifter? Did the put a garden hose as a stethscope on the motor and the "sound" was coming from the front top end of the block.. But I'm not a mechanic so who knows. Any ideas??? Oh Happy Australia Day

Post by **HotAe92** » Wed Jan 25, 2006 11:59 pm

Its normal for zooks to sound like small truck engines.
To muffle the sound, i suggest you fit a cat-back exhaust, to remind you of the fact that the engine is still a four-pot.

Post by **moose** » Thu Jan 26, 2006 12:14 am

sounds like it might be pinging !!!!
try getting the timing backed off 1 or 2 degree,s !!!
OR put a tank of PREMIUM fuel in it !!!

Post by **Eddy** » Thu Jan 26, 2006 6:48 am

yep ... pinging.

Check timing!

Post by **ronoor** » Thu Jan 26, 2006 11:35 am

I have heard the car and driven it does not ping sounds like push rod or lifter noise ?

Post by **bushpig59** » Thu Jan 26, 2006 11:59 am

Thanks Mouse and others...its been running premium (its much better) I can id pinging in an instant(she pings in 3rd whilst driving like an F1 driver) but no its a diesel sound and only is noticable in acceleration and when backing off the sound almost but disappears,soon as you put pedal to the metal she's back on... Its still goes up embankments like superman and drives very well.
And I am very greatful for your replies... Any other suggestions? Thanks Ron for the input ronoor. And Ron (he's me mate) thanks for cutting the bumper bar and underneath so the BFG Muddies wont rub,done a really good job. I will post pics and progressive what I have done to her soon....
Can any one tell me the best way of putting pics etc on (size of jpegs allowable etc)

Post by **Spike_Sierra** » Thu Jan 26, 2006 12:33 pm

cant be push rod as they dont have any.
i rekon it might be the lifters, take the cover off and check the clearance between the lifter arm and the valve.should be .25mm or something...

Post by **christover1** » Thu Jan 26, 2006 12:37 pm

sometimes the dizzy bearing can echo thru the cam making a similar noise, makes it hard to tell which end noises are from.
fuel pump off cam can make similar noises, too.

christover

Post by **mooks100** » Thu Jan 26, 2006 1:49 pm

I reckon it's that lead (the metal), doughnut-shaped exhaust gaskett just south of the mannifold. If thats worn out it can give a throaty diesel sound under acceleration and nothing when cruising.
My 2c

Post by **bushpig59** » Thu Jan 26, 2006 9:04 pm

mooks100 wrote:I reckon it's that lead (the metal), doughnut-shaped exhaust gaskett just south of the mannifold. If thats worn out it can give a throaty diesel sound under acceleration and nothing when cruising.
My 2c

its a good call mooks100 but replaced it last sat at the bro in laws garage had fun removing the two bolts put it on the hoist and used secret spray and then armstrong 12mm from mem. The old exhaust gasket was stuffed new one seats in very well. I think I will go back to the lifter but christover1 has an interesting diagnosis not sure on that but will keep everone posted again thanks for your interest. I will show what I have done to the zook from start to finish with breif desc. Its not going to be a mad one but it might get their....

Post by **DrCarlo** » Fri Jan 27, 2006 10:16 am

When i brought my car the girl said she used good fuel to stop the noise under the bonnet. I didnt think twice about this *stupid me* and didnt hear it on the test drive.

Then a few days later, heard it.. the ping of death.. The timing was WAY out on my poor zook.

Plus her mechanic who said he was servicing the car (sticker in the car was new when i got it) didnt do any of the service item. Bad spark plugs etc etc.

Fixed everything up.. goes really well now. Glad the engine didnt get killed to much. NO doubt its shortened its life but its not like those engines are too expensive.

Post by **Vineboy** » Fri Jan 27, 2006 2:48 pm

I've got one word Kimmy...Piston slap.

Post by **ronoor** » Fri Jan 27, 2006 3:55 pm

Thats two words

Post by **bushpig59** » Sat Jan 28, 2006 9:57 pm

Vineboy

PostPosted: Fri Jan 27, 2006 2:48 pm
I've got one word Kimmy...Piston slap.

mY bro in law mentioned this a:what is piston slap b:how does one identify this? do I do a compression test?
Also when I try to get some one to listen to it , the sound was not as pronounced as from cold take off. I am going to get to the bottom of this. even if I have to rebuild the bloody motor. I like the lifter theory as the hose against the block revealed noise from top front part of motor but I not a mechanic.. Refilled the car with standard unleaded yesterday and boy she pings (no its not the sound I telling you about) and the best I got with a bit of 4wd and around town was 339kms approx which is not great fuel economy but hay its a toy to have a bush bash with....

Post by **Vineboy** » Sun Jan 29, 2006 10:48 am

My idea of piston slap (as distinct from "pissed'n'broke) is when the motor is under a bit of work (ie going uphill) and the pistons move sideways in the bore as the pressure on them increases. A compression test is always worthwhile even for an academic experiment. Good to see if all cylinders are within 10psi (I think it's 10psi) of each other. Don't ask me what the compression should be. Thats for the zook gurus not imposters like myself.

PS What size and type of wheels are yours?

Post by **bushpig59** » Sun Jan 29, 2006 12:46 pm

Vineboy you will steal my thunder as I was going to post pics plus all the mods and things doin to it The tyres are BFG 30 x 9.5R15 M/T's.....RIMS 15X7
2"lift kit OME Shocks HDUTY Front Rear Springs, And an oversized OME Steering damper (not one bit of back lash to be felt....yet)Handling is a dream on the tar she has no understeer or oversteer off road as you would expect (The Jukes of Hazzard are kindergarten kids). A liitle more work for the front end got to cut more metal so tyres dont scrap but gettin close....
I think that this site is great and the posting of what you done too your vehicle has given me greater insite on how to go broke even quicker but I am rapt.........

Post by **bushpig59** » Sun Jan 29, 2006 5:03 pm

Some info re "sound of motor" Just went for a short drive (rained last night) went to the local mud bowl and the noise after 10-15mins is nowhere as noticable Under power in 3 rd gear noticable but 4th not so noticable...Anyway will do the compression test and check the noisy lifter theory......

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Motor Sounding Sus

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