[W126 Coupe] "Whirring" noise in the engine

Jay Hirsch J.Hirsch at mac.com
Tue Feb 1 22:49:48 EST 2011


Cannot hurt to use Type F i all transmissons

Friend of mine who rebuilds tranny's and owns three MBs use's
Type F in all his rebuilds and has done so for twenty five years
keep sleighin
Jay H
On Feb 1, 2011, at 7:27 PM, Jonathan Hodgman wrote:


> worn reverse and front pump cheesing out are two very different

> problems.. your reverse clutches were/are weak, lucas has an

> additive package that helps make them Grab, as well as thickening

> the fluid which ups the pressure on the band/clutch pack.

>

> You can buy a good bit of time w/ lucas and worn clutches.

> Switching to Type F helps as well.

>

> Jonathan

>

> On 2/1/2011 6:42 PM, mavris2 wrote:

>>

>> Not in anyway would i promote this.... But if worse came to worse

>> and it turns out trans pump. I would try some lucas tranny

>> additive. A few years ago my tranny would lung into reverse. Long

>> story short 2 different shops said needs tranny. I put the lucas

>> in and the reverse problem completly went away. Maybe it will help

>> the seals in the pump if thats where its coming from?

>>

>> Jason

>>

>> From: Jonathan Hodgman <jhodgman at gmail.com>

>> Sent: Tuesday, February 01, 2011 4:58 PM

>> To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>

>> Subject: Re: [W126 Coupe] "Whirring" noise in the engine

>>

>> if it's from the trans only thing that would whir would be the

>> front pump....NG :(

>>

>>

>> On 2/1/2011 4:47 PM, Michael Ramay wrote:

>>>

>>> I did the long screwdriver to the ear trick and it,

>>> unfortunately, ain't the pump. Darn. Good idea though.

>>>

>>> What about something in the front of the tranny??

>>>

>>> On Tue, Feb 1, 2011 at 1:46 PM, Jonathan Hodgman

>>> <jhodgman at gmail.com> wrote:

>>> they don't have to leak to make noise;-)

>>>

>>> On jack's SEC his pump made noise when it was cold.

>>>

>>>

>>>

>>> On 2/1/2011 4:35 PM, Michael Ramay wrote:

>>>> Thought about that too and took mine apart (it was fine), then

>>>> put in a new set of viton o-rings. It "should" be good for ten

>>>> more years.

>>>>

>>>> Good ideas, but not the problem one yet!!

>>>> Mike

>>>>

>>>> On Tue, Feb 1, 2011 at 9:13 AM, Jonathan Hodgman

>>>> <jhodgman at gmail.com> wrote:

>>>> I've seen the SLS pumps make a noise that's hard to locate..

>>>>

>>>>

>>>>

>>>> On 2/1/2011 9:22 AM, Michael Ramay wrote:

>>>>> It's not turning and it's unplugged.

>>>>>

>>>>> On Tue, Feb 1, 2011 at 6:15 AM, Markus Meyer

>>>>> <markusfmeyer at gmail.com> wrote:

>>>>> Is your air pump unplugged? That's what mine sounded like

>>>>> till I unplugged it.

>>>>>

>>>>> Markus

>>>>>

>>>>> On Tue, Feb 1, 2011 at 9:00 AM, Michael Ramay

>>>>> <mike.ramay at gmail.com> wrote:

>>>>> My '87 560SEL makes a "whirring" noise when it's first started.

>>>>> Sounds almost like a bad bearing in

>>>>> the alternator and

>>>>> loud enough that my wife is commenting on it but in a mile or

>>>>> so it goes away.

>>>>>

>>>>> - I removed all the V-belts on the front of the motor, still

>>>>> have the noise.

>>>>> - Since it sounds like it's coming from the passenger side of

>>>>> the engine up high, I removed that valve cover then ran the

>>>>> engine - it was louder.

>>>>> - Put in a new timing chain and new guides. !@#$%^&* - still

>>>>> have the noise but the car has noticeably more power.

>>>>>

>>>>> It REALLY needed the guides since one was broken in two and a

>>>>> 3" long piece is missing plus another had the hole for the

>>>>> retention pin wallowed out. I looked very carefully down the

>>>>> chain pathway during the installations but no sign of the piece.

>>>>>

>>>>> Will removal of the oil pan allow me to see much of the lower

>>>>> timing chain guide area? If the missing chain guide is jammed

>>>>> in there and rubbing on the rotating bits, why would the noise

>>>>> diminish in a minute or so of operation?

>>>>>

>>>>> Suggestions??

>>>>>

>>>>> Thanks,

>>>>> Mike

>>>>>

>>>>>

>>>

>>> The MB Coupes Website!

>>> W126 SEC Mailing List

>>> Postings remain property of MB Coupes, L.L.C.

>>

>> The MB Coupes Website!

>> W126 SEC Mailing List

>> Postings remain property of MB Coupes, L.L.C.

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.


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