4jh1-tc Catalytic Converter?

joelbrug
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4jh1-tc Catalytic Converter?

Unread post by joelbrug » May 3rd, 2011, 4:42 pm

Hello
I am looking at changing my dumppipe from the turbo as the rest of the exhaust is upgraded to 2.75" and i think this will be the last restriction in the exhaust.

I have been told that there is a diesel cat in the dump pipe and i can see a squarish box in the dump pipe which might be it?
Is this what it is or is it just a collection/filter type box?

The ute is a 2005 RA 3.0l Diesel turbo 4jh1-tc

I emailed Beaudesert exhaust as they seem to be highly respected in this area and they said they dont replace the cat on these as they are not legally needed?

Im sure someone else has replaced this section of exhaust, did you replace the cat? where did you get your dump pipe from?

All help greatly appreciated.

Joel

azzad
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Re: 4jh1-tc Catalytic Converter?

Unread post by azzad » May 3rd, 2011, 8:34 pm

Give Manta systems a call in WA they will sell you a 3" dump with or without the Particulate Filter.

Dazza

08RA
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Re: 4jh1-tc Catalytic Converter?

Unread post by 08RA » May 3rd, 2011, 9:52 pm

As far as I know you can not remove a manufacturers pollution device legally, even if it was only fitted to satisfy markets elsewhere in the world and not required for ADR's at the time.
Having said that, a Holden service manager swore black and blue that my RA7 CRD did not have a cat !!

btw you may want to leave a "squarish looking box" in the system, even if it is hollow.

joelbrug
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Re: 4jh1-tc Catalytic Converter?

Unread post by joelbrug » May 4th, 2011, 9:35 am

Thanks for the responses.
I have sent an email to Mantra Systems.

Are the particulate filter and cat the same thing?

thanks
Joel

STEELJOCKEY
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Re: 4jh1-tc Catalytic Converter?

Unread post by STEELJOCKEY » May 4th, 2011, 12:44 pm

no. a catalytic converter uses a catalyst to convert noxious gases to something safer, ie carbon monoxide to carbon dioxide. Whereas a particulate filter catches soot in a filter, which is either changed for a new filter or has a burn off feature to clean the filter
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STEELJOCKEY
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Re: 4jh1-tc Catalytic Converter?

Unread post by STEELJOCKEY » May 4th, 2011, 12:54 pm

Both the 4jh1 and 4jj1 engines have catalytic converters only
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mcgyvah
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Re: 4jh1-tc Catalytic Converter?

Unread post by mcgyvah » February 25th, 2015, 8:33 am

I have been told that there is a diesel cat in the dump pipe and i can see a squarish box in the dump pipe which might be it?
Is this what it is or is it just a collection/filter type box?
Is this the catalytic converter?
How do I get it off at the turbo end. I removed the heat shield and it appears to be held by 3 round nuts? that are welded to the turbo housing?
Could someone let me know if this is the cat and how it would normally come off.
Thanks

mcgyvah
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Re: 4jh1-tc Catalytic Converter?

Unread post by mcgyvah » February 25th, 2015, 9:17 am

So I looked from the bottom and its definitely cat & dump pipe in one. Any ideas on how to get it off?

STEELJOCKEY
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Re: 4jh1-tc Catalytic Converter?

Unread post by STEELJOCKEY » March 1st, 2015, 9:01 am

4 nuts hold the pipe to the back of the turbo, can be quite difficult to remove, use lots of WD40 etc and lots of soaking. If your nuts are round maybe someone else has tried to remove them in the past and rounded them off. Could be lots of fun then
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mydmax
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Re: 4jh1-tc Catalytic Converter?

Unread post by mydmax » March 1st, 2015, 10:45 am

Standard form tools may not work for you and therefore you may need to modify standard ring or open end spanners to allow loosening and removal of the nuts.

Often a specially bent spanner may be required. The ring or the ring spanner may also require thinning to get in beside the dump and the nut.

Nothing as satisfying as having special tools to loosen your nuts.
Sometimes a socket and "special" T bar or ratchet is required.

STEELJOCKEY
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Re: 4jh1-tc Catalytic Converter?

Unread post by STEELJOCKEY » March 1st, 2015, 12:44 pm

mydmax wrote:Nothing as satisfying as having special tools to loosen your nuts.
Touche
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