Water pump replacement

1973-1980 : 280S, 280SE, 280SEL, 300SD, 350SE, 350SEL, 450SE, 450SEL, 450SEL 6.9
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Cream 280SE
Posts: 4
Joined: Sun 04 Dec, 2016 5:54 am
Model you own: w116

Water pump replacement

Post by Cream 280SE » Sun 23 Apr, 2017 10:44 pm

Hi , I am replacing the water pump on my 77 280se. I cannot get to the two lower bolts on the water pump to remove it as it looks like I have to remove that balancer. Do I have to remove the large bolt in the middle to remove it or the 6 hex screws? Or is there an easier way to get to those lower bolts? Thanks for any advice.

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mrkozzy
Pagoda
Posts: 148
Joined: Sun 24 May, 2009 2:47 am
Model you own: w116
Location: Melbourne Australia

Re: Water pump replacement

Post by mrkozzy » Mon 01 May, 2017 5:35 am

Replied to your pm.
Cheers
w116 280se 1975 English Red
w108 250s 1967 Graphite Gray

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brycedunn
250s
Posts: 278
Joined: Wed 13 Jul, 2005 11:15 am
Model you own: w111
Location: Sydney
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Re: Water pump replacement

Post by brycedunn » Sat 06 May, 2017 12:20 am

Cream 280SE wrote:Hi , I am replacing the water pump on my 77 280se. I cannot get to the two lower bolts on the water pump to remove it as it looks like I have to remove that balancer. Do I have to remove the large bolt in the middle to remove it or the 6 hex screws? Or is there an easier way to get to those lower bolts? Thanks for any advice.
From memory its the hex bolts. and yes you'll need to remove it to do the water pump on the M110. The hardest part for me was the bolts on the viscous fan as they had been rounded before. With a bit of penetrating fluid balancer came off easily. I think I used an allen socket and a breaker bar.

You'll end up with a parts pile looking something like this:

Image
Bryce
250SE & 450SLC
http://blog.docmong.com

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