1HD-FTE air intake to manifold...full of crap!!!!

Submitted: Tuesday, Mar 03, 2009 at 19:22
ThreadID: 66472 Views:10427 Replies:5 FollowUps:11
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I had the valve clearances checked on my 100TD today during 120k service..

The air intake section which sits across the top of the engine and bolts to the intake manifold is removed in the process.

I noticed in doing so the intake is lined with about 1 - 2mm of sooty oily crap.

Mechanic says no issues there, normal....

Is it normal?, anyway of preventing such a thing?

Cheers
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Reply By: Madfisher - Tuesday, Mar 03, 2009 at 20:27

Tuesday, Mar 03, 2009 at 20:27
I think its the exhaust gas retriculation that does it, all part of modern motors to meet exhaust emmisions unfortunalty. Its worth while cleaning up as it should breath better.
Cheers Pete
AnswerID: 352051

Reply By: Member - Phil G (SA) - Tuesday, Mar 03, 2009 at 20:44

Tuesday, Mar 03, 2009 at 20:44
Read all about it HERE.

Some of those photos came from my vehicle. I vacuumed out the intake and manifold, and doctored the EGR as suggested, and never looked back. I took it all apart to do the clearances again last year, and after 40,000k, it was all still clean.
AnswerID: 352056

Follow Up By: Member - Andrew (WA) - Tuesday, Mar 03, 2009 at 20:57

Tuesday, Mar 03, 2009 at 20:57
Excellent, thanks Phil.
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FollowupID: 620247

Reply By: Member - Nick (TAS) - Tuesday, Mar 03, 2009 at 20:46

Tuesday, Mar 03, 2009 at 20:46
Even better, blank off the EGR and stop all that crap re entering the intake.
AnswerID: 352057

Follow Up By: Member - Andrew (WA) - Tuesday, Mar 03, 2009 at 20:59

Tuesday, Mar 03, 2009 at 20:59
Any idea if there is a common item used to do the job Nick?

Cheers
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Follow Up By: Member - Nick (TAS) - Tuesday, Mar 03, 2009 at 21:08

Tuesday, Mar 03, 2009 at 21:08
Where the EGR pipe comes off the exhaust manifold, just remove it and make up a blanking plate, a bit of exhaust sealant on each side and bolt it back together.An invisable fix.....wink wink
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FollowupID: 620251

Follow Up By: Member - Andrew (WA) - Tuesday, Mar 03, 2009 at 21:16

Tuesday, Mar 03, 2009 at 21:16
Have a look at Phil G's link above in his thread reply. The mod is different to your suggestion by the looks of it. In the pic, it looks like something has just been placed in the rubber tube line.

I'm not real mechanically minded (except what I learn here) and imagine if you're talking about a pipe that comes off the manifold, it would be steel...yes?
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Follow Up By: Member - Dick (Int) - Tuesday, Mar 03, 2009 at 21:24

Tuesday, Mar 03, 2009 at 21:24
Just follow Phil's link and you have all you need. I did it to my Troopy some time ago and it works perfectly.

Cheers
Dick







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Follow Up By: Member - Nick (TAS) - Tuesday, Mar 03, 2009 at 21:31

Tuesday, Mar 03, 2009 at 21:31
Yep, that way works and is how most people do it.But it is possible for the EGR valve to sieze open and if it is blocking the vacumn pipe of will do nothing as its stuck open.Blocking the pick up point off truely blocks it off.
Yes, the pipe off the manifold is steel, a bronzie coloured pipe.
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Follow Up By: Member - Andrew (WA) - Tuesday, Mar 03, 2009 at 21:43

Tuesday, Mar 03, 2009 at 21:43
Thanks Nick and others for your replies.

I see what you mean Nick and it looks like an easy job off the manifold....

Cheers
Andrew
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Follow Up By: Madfisher - Tuesday, Mar 03, 2009 at 21:59

Tuesday, Mar 03, 2009 at 21:59
Nick can you do the same with petrol motors, and will it have any ill effects.
Cheers Pete
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Follow Up By: Member - Nick (TAS) - Tuesday, Mar 03, 2009 at 22:42

Tuesday, Mar 03, 2009 at 22:42
Havent had much to do with EGR's on petrol motors but seeing as petrols run much cleaner than diesels(older motors anyway), I doubt it would achive anything.
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FollowupID: 620280

Reply By: Member - Paul W- Esq (VIC) - Tuesday, Mar 03, 2009 at 21:23

Tuesday, Mar 03, 2009 at 21:23
I had mine off at 40k, full of oily sludge, cleaned it up and refitted it, it was off gain at 61k and same thing. EGR system at work.
AnswerID: 352069

Follow Up By: Member - Andrew (WA) - Tuesday, Mar 03, 2009 at 21:25

Tuesday, Mar 03, 2009 at 21:25
Paul...after cleaning it up the 1st time, did you notice any difference in performance.???

Cheers
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Follow Up By: Member - Paul W- Esq (VIC) - Tuesday, Mar 03, 2009 at 22:28

Tuesday, Mar 03, 2009 at 22:28
No noticeable difference Andrew, none whatsoever unfortunately.
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FollowupID: 620276

Reply By: Flywest - Wednesday, Mar 04, 2009 at 13:23

Wednesday, Mar 04, 2009 at 13:23
Had much the same issue, with the F 250, Ram Air head of the snorkel jammed chockers full.

Pulled it off and cleaned it out and found 2 slow Nissan MQ Patrols and a Prado jammed in there! ;o)

Cheers!
AnswerID: 352151

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