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Inlet Manifold

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=48762
Printed Date: 19-May-2024 at 16:45


Topic: Inlet Manifold
Posted By: Inept
Subject: Inlet Manifold
Date Posted: 06-February-2012 at 14:16
Hello - can anybody help on this query please:
320D Inlet Manifold  old style 11 61 7 787 318
New part number;11 61 7 800 577
 
Does any body know what the changes are I know the stems went from 4mm to 4.5mm dia.
 
Also '579 is this the latest manifold for 320d?
 
Any help would be appreciated
 
thanks


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tsk


Replies:
Posted By: Andrew Rolland
Date Posted: 06-February-2012 at 16:44
Probably a modification to the dreaded http://www.motormec.co.uk/swirl.pdf" rel="nofollow - swirl flaps that crippled oil burning engines.  Modifications were made to later http://www.swirlflaps.co.uk/what-are-swirl-flaps.html" rel="nofollow - inlet manifolds to remove this achilies heel.

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Be exclusive and drive a Petrol 5 Series!

Current
'13 62 F10 535i MSport Auto

Previous
'04 04 E60 545i SE Auto
'03 53 E60 545i SE Auto (Stolen)
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Posted By: Inept
Date Posted: 06-February-2012 at 16:53
Thanks for the reply Roland - but what were the changes;I already know of the increase in stem dia?
 
regards


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tsk

Posted By: Andrew Rolland
Date Posted: 06-February-2012 at 18:49
As I said earlier, modifications were made to remove the swirl flaps from newer inlet manifolds.  Newer cars don't have them and the spare part for the older cars was modified at the same time to eliminate them.

-------------
Be exclusive and drive a Petrol 5 Series!

Current
'13 62 F10 535i MSport Auto

Previous
'04 04 E60 545i SE Auto
'03 53 E60 545i SE Auto (Stolen)
'98 S E39 523i SE Auto

Posted By: Inept
Date Posted: 25-July-2012 at 16:54
Hi Andrew,
 
I am currently agonising over whether to remove my swirl flaps which happen to be the latest variety that is the part number ending in '577. I have had them in my 320d for 2 years now but have always been relunctant to fetch them out. This is because it is difficult to locate a specfic case of failure on the latest version - plenty of hearsay though. Also there are some negatives that is loss of torque at low revs and mpg taking a hit! Some say that it may effect the life of the turbo! Also selling on a car which has been "modified" may not be appreciated by the buyer(garage or even Franchise). Generally I opt for cleaning/inspecting the Inlet Manifold on a yearly basis. However both alternatives are costly although the over kill method has its merit. I can locate a garage which will do the job for £100 if I supply the blanks, although my local Indie will charge £150 incl blanks and clean the EGR as well. The panic merchants on other forums will always say deflap.  So which is best ; clean and inspect or deflap! Personally I prefer the cleaning op as I know my Inlet Manifold is in good condition but ...........
 
regards Tony


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tsk

Posted By: Andrew Rolland
Date Posted: 26-July-2012 at 08:22
Do nothing.  Trade it in, don't say a word.  Buyers beware. 

-------------
Be exclusive and drive a Petrol 5 Series!

Current
'13 62 F10 535i MSport Auto

Previous
'04 04 E60 545i SE Auto
'03 53 E60 545i SE Auto (Stolen)
'98 S E39 523i SE Auto


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