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Old 06-01-2010, 01:25 PM   #1 (permalink)
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Default Suzuki Jimny Exhaust Problems

2004, M13A engine, 42K.

My Jimny has developed a small leak in the exhaust system somewhere near the leading end of the CAT unit.

The pipework generally looks to be in good condition. I suspect a hole near a run of weld rather than that of general corrosion. Is the shield around the CAT likely to be difficult to remove if the leak is under it?

Any suggestions on how I might plug the leak for the MOT; I understand the use of exhaust paste is not reconmended option?

I guess there is not such thing as high temperture silicone sealant?

Thanks in advance for any practical advice you can give.
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Old 06-02-2010, 02:48 AM   #2 (permalink)
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I suggest taking it to an exaust shop and just weld it.

About the high temp silicone, it does exist in fact, the red silicone (RTV sealant) which is used for the headers gasket.
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Old 06-02-2010, 05:18 AM   #3 (permalink)
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I don't think you can get a high temperature silicon sealant that is sensor safe. You should only use sensor safe sealants on an EFI engine, particularly on the exhaust!. The shield may be difficult to remove, those bolts are subject to a lot of heat and are likely to be rusted in place too.
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Old 06-09-2010, 01:34 PM   #4 (permalink)
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Default Identifying the Parts of the Exhaust

I now realise the exhaust is beyond economic repair (not good for only 42K).

I visited a few local garages for a price to replace some or all of it.

If I could fully identify the parts I can buy cheaper on the internet and fit it myself.

The logbook says I have a M13A engine which is 1328cc (DOHC/chain drive).
The garages exhaust catalogues list the engine as G13B 1298cc (SOHC/belt drive).
Apparently both engines were used in the Jimny for a number of over-lapping years.

Problem is: Is the exhaust, especially the first part containing the CAT, one and the same or are they different for the two engines?
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Old 06-10-2010, 02:59 AM   #5 (permalink)
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The DOHC will be different than the SOHC engine. The DOHC is higher compression and produces more heat.

It's easy to identify the two engines. The SOHC has one lobe on top of the engine and the plugs are over on the side just above the exhaust manifold.

The DOHC engine has 2 lobes on top and the spark plugs run down the center of the engine between the two lobes.
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Old 06-10-2010, 03:19 AM   #6 (permalink)
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Default Identifying Exhaust Parts

I know I have the M13A engine with the chain driven twin cam.

What I don't know is why the exhaust fitters’ catalogues only appear to list the exhaust for the G13B engine.

It is possible the exhaust systems are one and the same for my year.
(2004 / JLX).
I need to be sure before ordering one on the internet as suppliers websites also only list one (G13.
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Old 06-10-2010, 01:40 PM   #7 (permalink)
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Yeah I'd definitely check around and find out before ordering. The two engines are SO different. About the only thing in common is the 1.3L and the suzuki name. Does the suzuki dealer near you have any input? You guys still have that engine in production over there don't you?

We havn't had SJ413's here in the US for so long That a Tech at a US suzuki dealership would just look at you like bugs were crawling out your ears if you started asking questions about one.
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Old 06-10-2010, 02:10 PM   #8 (permalink)
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Default Exhaust System Nearly Sorted!

I have now identified the break in the exhaust and it will be mig welded tomorrow.
If that is not sucessful then I will visit yet another local supplier who said he would match the exhaust from the company's large stock.
He thinks that the OBD version is the one for my vehicle. (My Jimny does have a OBD socket - I have used it in the past).
Additionally they will match the cheaper internet prices and also give me back something for the old cat!

thanks for your help
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Old 06-10-2010, 02:10 PM   #9 (permalink)
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Quote:
Originally Posted by Baratacus View Post
Yeah I'd definitely check around and find out before ordering. The two engines are SO different. About the only thing in common is the 1.3L and the suzuki name. Does the suzuki dealer near you have any input? You guys still have that engine in production over there don't you?

We havn't had SJ413's here in the US for so long That a Tech at a US suzuki dealership would just look at you like bugs were crawling out your ears if you started asking questions about one.

Do you think the engine block is still the same? As the displacement is perfectly identical to those older Samurais.
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Old 06-10-2010, 02:22 PM   #10 (permalink)
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Default Jimny Exhausted!

see previous post - thanks for your interest.

I believe the two engines were both used in the same period of time - which one dependant on the body trim/variant.

I suspect it might be a case of where the vehicle was assembled - Spain or Japan, etc. Result: one of the factories run out of the older G13A before the other(s) and was then the first to switch over to the newer M13A engine???

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