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-88 SL560 vacuum tank, where is it?
- Erik1
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27 Nov 2020 10:29 #263530
by Erik1
-88 SL560 vacuum tank, where is it? was created by Erik1
Hi, this is my first post in this forum. I am impressed over the amount of topics in here
I was about to inspect the big vacuum tank, which I thought was located under the right front fender. No tank there. I assume I have the small tank located with the A pillar left side. Is this small A pillar tank the only tank?
Appreciate any responses.
Greetings from Norway.
I was about to inspect the big vacuum tank, which I thought was located under the right front fender. No tank there. I assume I have the small tank located with the A pillar left side. Is this small A pillar tank the only tank?
Appreciate any responses.
Greetings from Norway.
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27 Nov 2020 12:04 #263540
by Dr-DJet
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
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Replied by Dr-DJet on topic -88 SL560 vacuum tank, where is it?
Hi Erik old Viking ,
you only have a small vacuum tank for air conditioning system. It is on left front but only accessible from inside. There is a flap underneath your dashboard. If you remove that you will find that small tank.
you only have a small vacuum tank for air conditioning system. It is on left front but only accessible from inside. There is a flap underneath your dashboard. If you remove that you will find that small tank.
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Fast alles zu Zündung und Jetronic auf jetronic.org
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27 Nov 2020 12:14 #263543
by Erik1
Replied by Erik1 on topic -88 SL560 vacuum tank, where is it?
Hi Dr-DJet,
thanks for your quick reply.
Okay, so I dont have the tank under the fender. I would believe that the small tank you refer to was too small to maintain vacuum over time. We learn every day
thanks for your quick reply.
Okay, so I dont have the tank under the fender. I would believe that the small tank you refer to was too small to maintain vacuum over time. We learn every day
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27 Nov 2020 14:31 - 27 Nov 2020 16:57 #263559
by Dr-DJet
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
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Replied by Dr-DJet on topic -88 SL560 vacuum tank, where is it?
Hi Erik,
size of the tank only determines the volume, not for how long vacuum is kept.
The big tank was needed for SLs up to 1985 with vacuum only operated central locking. yours has an electrical vacuum pump.
size of the tank only determines the volume, not for how long vacuum is kept.
The big tank was needed for SLs up to 1985 with vacuum only operated central locking. yours has an electrical vacuum pump.
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Last edit: 27 Nov 2020 16:57 by Dr-DJet. Reason: Typo
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27 Nov 2020 14:59 #263561
by Erik1
Replied by Erik1 on topic -88 SL560 vacuum tank, where is it?
Hi, looks like you know a thing or two about the vacuum system. I have another question which bothers me, because I am not able to figure it out.
I take my liberty to ask you about this. I will refer to the attached vacuum diagram and picture.
According to the diagram, which I believe is the correct one (!), the line (marked with red arrow) from the gas port in the distributor leading to the vacuum amplifier (90), is not there.
And I cant find the amplifier (90).
The line going from the temp switch (79 upper) is NOT going via 90, but directly to the EGR valve. If I can locate 90, I could rewire according to the diagram, but again I am not completely sure if I have the correct diagram...
Dont know if this explanation is understandable, but I wonder if the lines in my car is wrongly connected, or if I have a wrong diagram?
Do you have any idea?
I take my liberty to ask you about this. I will refer to the attached vacuum diagram and picture.
According to the diagram, which I believe is the correct one (!), the line (marked with red arrow) from the gas port in the distributor leading to the vacuum amplifier (90), is not there.
And I cant find the amplifier (90).
The line going from the temp switch (79 upper) is NOT going via 90, but directly to the EGR valve. If I can locate 90, I could rewire according to the diagram, but again I am not completely sure if I have the correct diagram...
Dont know if this explanation is understandable, but I wonder if the lines in my car is wrongly connected, or if I have a wrong diagram?
Do you have any idea?
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27 Nov 2020 16:49 - 27 Nov 2020 16:59 #263565
by Dr-DJet
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
Fast alles zu Zündung und Jetronic auf jetronic.org
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Replied by Dr-DJet on topic -88 SL560 vacuum tank, where is it?
Hi Erik,
would be nice if you could join our Netiquette and sign with firstname.
Regarding your vacuum amplifier. This is not an amplifier, just a control valve. It is only used till model year 87. As of model year 88 it is omitted. Source: 107 workshop manual in menu above then read chapter 14-475 Checking exhaust gas recirculation .
Many 560 SL drivers decided to remove EGR. But I am not a specialist on that as my car does not have such fancy stuff from origin.
would be nice if you could join our Netiquette and sign with firstname.
Regarding your vacuum amplifier. This is not an amplifier, just a control valve. It is only used till model year 87. As of model year 88 it is omitted. Source: 107 workshop manual in menu above then read chapter 14-475 Checking exhaust gas recirculation .
Many 560 SL drivers decided to remove EGR. But I am not a specialist on that as my car does not have such fancy stuff from origin.
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
Fast alles zu Zündung und Jetronic auf jetronic.org
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Last edit: 27 Nov 2020 16:59 by Dr-DJet.
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27 Nov 2020 16:58 #263566
by Dr-DJet
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
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Replied by Dr-DJet on topic -88 SL560 vacuum tank, where is it?
In German manual you also find a picture of 79 and 90:
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Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
Fast alles zu Zündung und Jetronic auf jetronic.org
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27 Nov 2020 20:49 #263588
by Erik1
Replied by Erik1 on topic -88 SL560 vacuum tank, where is it?
Hello Dr-DJet,
thanks for the tip about the signature. Appreciate the guidance to enable me to adapt to this excellent forum.
As I have an -88, does that explain why I dont have nr 90. According to the schematics in the link, does it seems like the hose connection referred to in my picture (of the drosselklappen) is unconnected. Still, it is open ended and atmospheric pressure is present. Maybe that is correct.
Thanks for taking this of my chest. I will leave it as it is.
Best regards Erik "the viking"
thanks for the tip about the signature. Appreciate the guidance to enable me to adapt to this excellent forum.
As I have an -88, does that explain why I dont have nr 90. According to the schematics in the link, does it seems like the hose connection referred to in my picture (of the drosselklappen) is unconnected. Still, it is open ended and atmospheric pressure is present. Maybe that is correct.
Thanks for taking this of my chest. I will leave it as it is.
Best regards Erik "the viking"
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27 Nov 2020 20:58 #263589
by Dr-DJet
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
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Replied by Dr-DJet on topic -88 SL560 vacuum tank, where is it?
Hi Erik,
it is not unusual to have a universal 2 fold connection on throttle if both single or double connection is possible depending on year of make. In that case close the open connector with a plug.
it is not unusual to have a universal 2 fold connection on throttle if both single or double connection is possible depending on year of make. In that case close the open connector with a plug.
Viele Schraubergrüße - best regards, Volker, Admin und Betreiber dieser Webseite
Fast alles zu Zündung und Jetronic auf jetronic.org
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28 Nov 2020 12:29 #263610
by Erik1
Replied by Erik1 on topic -88 SL560 vacuum tank, where is it?
Hi again,
ok, I will plug the connector. Thanks again for the valuable tips. Now I can put back the distributor
Rgds Erik
ok, I will plug the connector. Thanks again for the valuable tips. Now I can put back the distributor
Rgds Erik
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