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Pump belt replacement - pump adjustment

 
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Blaumann
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Post03-09-2010, 10:47    Subject: Pump belt replacement - pump adjustment Quote

hello

Please don't think I'm completely incompetent - but I had to take a quick and dirty action yesterday to replace my pump belt, as the front tension pulley had already come loose. And after I had all the parts in the garage, I did it quickly - it couldn't really go wrong.
so far, everything has worked perfectly, the car runs smoothly - however, I would like to explain some things to myself in the follow-up:

I understand the basic theoretical approach with setting (measuring instrument and OT) is clear – at least as it would be found in the wiki or in instructions.

"However, I made it really easy for myself, I marked everything - removed the rollers, immediately put on the new belt, and simply reattached the rollers - and that's it. Don't ask me how the static setting looks now - but I had it pretty well set up after two adjustments - the box is running perfectly, to my surprise. Let's see how the new belt behaves, I'll probably go back to the earlier start time in the winter so that the car starts better..."

after my information in this regard is only theoretical, I would like to have my theory about the story evaluated:

Code:

"First, the basic setting is achieved using the camshaft."
This should be done so that the tension is centered with the tensioner – in order to potentially improve tolerances later. If you are already at the bottom when changing the belt with the tensioner, and you later need to go even further down – wouldn't that then no longer be possible?


In the t4wiki, for example, it states that the setting is made dynamically with the roles (using the IMBUS), which also seems logical to me.
So, if I'm now perfectly centered on the measurement and the tension rollers also have enough space in both directions, it seems like I've gotten lucky and can definitely leave it as is?


Greetings
volvo 850 tdi - 2.5l AEL aut. bj.96 - bald 500000km
volvo v70n 2.4 - 2.5l 5Zyl Sauger bj. 2005


Translated on 03-07-2026, 15:19.
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dieselschrauber
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Post03-09-2010, 11:10    Subject: Pump belt replacement - pump adjustment Translating...

[Translating...]

/viewtopic.php?t=3195
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Blaumann
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Post03-09-2010, 11:46    Subject: Pump belt replacement - pump adjustment Translating...

[Translating...]

dieselschrauber wrote:
/viewtopic.php?t=3195


tausend dank, hilft in der theorie sicher etwas weiter- muss ich mir daheim genau durchlesen...

prktisch gesehen hab ich zwar mechanisch das selbe ding wie im audi - elektronisch hab ich aber nicht die möglichkeit über vag-com.
das steuergerät ist sicher ziemlich baugleich, aber nur mit spezialtools zu diagnostizieren. dementsprechend glücklich bin ich, dass ich brickdiag als software kaufen konnte - hier gibt es im bezug auf die einstellung folgenden screen:
http://gallery.localhost.co.at/d/10841-1/Bild.jpg

aktuell läuft mein wagen eben auf -0,5 - kraftstoff war auch etwas wärmer - aber für einen neuen riemen genau mittig.

die frage die ich jetzt noch hab - wenn diese dynamische messung korrekt ist - die statische aber nicht 100% stimmt - macht sich das uu. unter anderen umständen negativ bemerkbar ? etwa eine höhere drehzahl oder so ?

nicht das ich jetzt davon ausgehe, das alles einwandfrei funktioniert, nur weil es dieses programm zeigt, das auto aber im teillastbereich oder so komplett falsch läuft ?

danke euch

gruß
volvo 850 tdi - 2.5l AEL aut. bj.96 - bald 500000km
volvo v70n 2.4 - 2.5l 5Zyl Sauger bj. 2005
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Post03-09-2010, 19:10    Subject: Pump belt replacement - pump adjustment Translating...

[Translating...]

Macht sich nicht bemerkbar. Die statische Einstellung dient dazu, wenn man keine Markierungen hat, daß der Motor überhaupt mal anspringt und damit eine dynamische Einstellung ermöglicht.
Gruß Christian
A6 BPP, Ex-A6 AKN (Gurke), Ex-Audi100 92 AAT (5Zyl.)
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Blaumann
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Post06-09-2010, 9:08    Subject: Pump belt replacement - pump adjustment Translating...

[Translating...]

tausend dank !! immer wieder fein hier nicht als doofkopf abgestempelt zu werden, wenn man mitunter mal blöde fragen hat. ich meine, lieber fragen (zumal man es ja nicht gelernt hat) als einen schaden risikieren.

die pumpe läuft wie nicht anders zu erwarten einwandfrei.

gruß
volvo 850 tdi - 2.5l AEL aut. bj.96 - bald 500000km
volvo v70n 2.4 - 2.5l 5Zyl Sauger bj. 2005
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