three inch exhaust
Submitted: Sunday, Jul 24, 2005 at 16:33
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6
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Member - Sjouke C (WA)
I know this has been done to death but I have a small question. The heat shields are removed are there any feed back if this has caused problems.
regards Catsy
Reply By: Gerhardp1 - Sunday, Jul 24, 2005 at 17:11
Sunday, Jul 24, 2005 at 17:11
In my opinion, the manufacturer would gladly leave the heat shields off if the standard exhaust didn't cause a potential problem. I'm pretty sure that a non-standard exhaust that is closer to the parts that are shielded will cause a problem much more quickly.
Remove them if you don't mind catching fire when you least expect it.
AnswerID:
121818
Reply By: Member - Roachie (SA) - Sunday, Jul 24, 2005 at 18:23
Sunday, Jul 24, 2005 at 18:23
Mate; are you talking about the heat shield/s on the exhaust manifold or the one under the floor pan, just above the muffler?
Mine has a 3" system with only a small hotdog muffler. The original heat shields are still in place and I can't imagine any advantage in removing them.
Cheers
Roachie
AnswerID:
121831
Reply By: Member - DOZER- Sunday, Jul 24, 2005 at 20:28
Sunday, Jul 24, 2005 at 20:28
Yep, please be more specific.....model car for a start....id have to say that there will be no problem associated with the removed heat shields...they will be quite happy to be removed and out of harms way:-)
Andrew
AnswerID:
121844
Follow Up By: Member - Roachie (SA) - Sunday, Jul 24, 2005 at 21:14
Sunday, Jul 24, 2005 at 21:14
Dozer,
I thought the same thing, but then, realising he is a member, I checked his rig profile and found he has a Patrol 4.2TD (same as
mine).
FollowupID:
377017
Follow Up By: Member - DOZER- Sunday, Jul 24, 2005 at 21:41
Sunday, Jul 24, 2005 at 21:41
Gday
To think it was right there infront of me....i better get my glasses on.
and no jokes about overheating Nissan diesel turbo motors either .... im up for a new head gasket this week....
Andrew
FollowupID:
377018
Follow Up By: Member Eric - Sunday, Jul 24, 2005 at 21:48
Sunday, Jul 24, 2005 at 21:48
Hi Andrew , hows the turbo set up comming along ?
Ps , the Jap thing went real
well , cheers
FollowupID:
377019
Reply By: Member - Robyn J (QLD) - Sunday, Jul 24, 2005 at 22:24
Sunday, Jul 24, 2005 at 22:24
We had a 3inch system fitted to our 4.2T and we replaced the heat shield around the manafold ourselves. The exhuast system certainly improved the performance of the car.
Cheers
Jenkie
AnswerID:
121855
Reply By: Member - John - Sunday, Jul 24, 2005 at 23:21
Sunday, Jul 24, 2005 at 23:21
When I changed my GU 4.2 TD exhaust to 3", the heat sheilds where removed and I had the section that goes under the cab High Performance coated, keeps the heat in and not into the cab, works
well.
AnswerID:
121864
Reply By: JamieMac - Monday, Jul 25, 2005 at 09:32
Monday, Jul 25, 2005 at 09:32
I left the heat shield off the piping for my MTQ 3" system. Partly as it was a bugger to put back on but mainly as it was causing premature corrosion (rust) on the original exhaust after only 35,000k. I thought this was a much bigger issue for problems later on.
The shield on the dump pipe and turbo was put back on with the holes moved a tad. The mounting holes pentrate into the exhaust flow so the bolt must go back in at the very least.
Have had no issues with heat at all but it is a little noisier but still no problem. The Original heat shields were packed with an 'asbestos' looking material that trapped the water and I think that Nissan's maini aim was to reduce noise rather than heat. This stuff trapped water and hence the rust.
I'll post if I have any problem with it setup like it is.
cheers
JamieMac
AnswerID:
121886