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Old 07-30-2018, 07:42 AM
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soren.911
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Default Oil pump replacement
hi all

is it necessary to remove all 3 chain tensioners before removing the oil pump (main pump) or is it enough just to remove the bank 2 tensioner?
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Old 07-30-2018, 05:19 PM
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Noz1974
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Why do you think you need to change your oil pump??
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Old 07-31-2018, 04:10 PM
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soren.911
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The pump is rattling at idle when warm. I have the cover of and can see is is starting to wear out.
thats why I will change it.
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Old 07-31-2018, 06:33 PM
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Chris(MA)
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Originally Posted by soren.911
The pump is rattling at idle when warm. I have the cover of and can see is is starting to wear out.
thats why I will change it.
That seems quite unusual, can you post pics? as far as I know the pump is very reliable, unless it ingests garbage and gets damaged
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Old 07-31-2018, 06:45 PM
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Coopduc
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Could the rattling really be the IMSB? The pump is driven off the shaft.
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Old 08-10-2018, 08:26 AM
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soren.911
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It was enough just to remove bank 2 chain tensioner. I locked the crankshaft just in case.
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Old 08-10-2018, 12:18 PM
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JTT
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So, was the pump damaged? I had mine out this winter, they are pretty robust. I think I'd be checking filter and dropping sump. If you find anything there, pull the transmission and check that IMS.
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Old 08-10-2018, 12:45 PM
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808Bill
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I too would like to see what a damaged oil pump looks like. Have you dropped the sump and inspected your oil filter?
As others have said IMSB would be my main concern!
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Old 08-10-2018, 04:10 PM
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soren.911
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Nothing observed in oil filter and the pump had only minor surface scratches on end plate and opposite side of the two pump gears.

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Old 08-10-2018, 04:13 PM
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Old 08-10-2018, 04:15 PM
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808Bill
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Then the rattling must be something else. Are you sure it's coming from the pump, maybe a pulley bearing? Lets us know what you find.
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Old 08-10-2018, 04:21 PM
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soren.911
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Yes it was from the pump. It is now rattle free after replacement. I had also expected more wear inside to make it rattle like it did.
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Old 08-10-2018, 04:33 PM
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808Bill
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Glad to hear it's all good to go.
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