NM 3.5 exhaust manifold problems

[Matt-NMexceed]

Hi all - i have the well documented problem of cracked manifolds (both). Car has travelled 170k so they have lasted ok i guess. Down here in Hobart the best price for a set of Wildcat (made by Geneie) Extractor fitted is $680.

I am guessing that other people have had this problem, and recell it featured on the old forums.

Is this a competative price or should i haggle some more?

Matt

[psproule]

Price sounds alright. There are a pair of factory manifolds on ebay right now - listed for the second time I think. But if it was me I would go the headders.

[wrexed03]

Good price go the headers. NM was prone to doing manifolds. I have replaced one of mine.. Next time around headers for sure.

Regards

[Matt-NMexceed]

Thanks for that - booked in today - pickup at 3. Will et you know what i think

Matt

[icysyrup]

I just went and bought some Nickel Arc welding rod and welded the manifold up on mine and it cost me a total of about 2 hours of my own time and 10 bucks for the welding rod.

[exRevHead]

Do the headers give any extra power on these engines?
Are wildcat the only ones availabe?

[Matt-NMexceed]

Well - all fitted - all the exhaust shops were quoting on the windcats - there was a huge variation in prices - from the $680 that i went for to over $1050.

Both were cracked (i thought it may have just been the RHS one - wrong....

Car (whether this is correct - or just in my head) does seem to go better, and when towing a 2 tonne trailer sailer today seemed to have more power.

Will advise on economy in next few days.

Thanks for the advice everyone.

Matt

[beaky]

manifold crack

I'm new here just catching up with a bit of reading on NM and have some questions

does the NM have flexible joints in the exhaust sytem?

If not is this a reason they crack manifolds?


bruce

[exRevHead]

Does anyone have the part number for wildcat headers to fit an NP?

[Matt-NMexceed]

Believe it is WILD132

[exRevHead]

Thanks mate - just checking I was looking at the right set on the Genie headers website.

They are actualy listed as NJ headers ? might be a typo.

[psproule]

No flexible joints from memory so that could be a contributing factor. So too could be the different expansion rates between the alloy heads and cast manifolds.

Pat

[simoncurly]

No flexible joints from memory so that could be a contributing factor. So too could be the different expansion rates between the alloy heads and cast manifolds.

Pat

plus.... heat and oxidation .....

[beaky]

flex joint

some good points there

Ive had cars now for over 40 years the last 20years they have been 4wd and in that time I have never ever had a cracked manifold. The last 3 have all had flexible joints so I would suspect vibration as the main cause. I may be wrong but I reckon I'll get one installed when I get my NM in a few weeks.

[Matt-NMexceed]

The invoice listed mine as WILD132 - NJ Pajero. Apparantly they fit all of the models from then ??