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10-19-2015, 04:23 PM | #21 | |
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Re: Lower water pump bolt
Quote:
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The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 Last edited by petehoovie; 10-19-2015 at 05:06 PM. |
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10-19-2015, 05:03 PM | #22 | |
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Re: Lower water pump bolt
Quote:
The bolts that were removed in this case were noticeably loose as a result of lost material on the bolt. Not only the water pump but the threaded portion in the block could be compromised.
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10-19-2015, 05:10 PM | #23 | |
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Re: Lower water pump bolt
Quote:
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The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
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10-19-2015, 05:16 PM | #24 |
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Re: Lower water pump bolt
SO........What should the guys like me that read that,and thought that Stainless bolts and washer were THE thing use.....DO ??? I run 50/50 red Toyota antifreeze....
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10-19-2015, 05:19 PM | #25 |
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Re: Lower water pump bolt
Would a sacrifical anode work in preventing this?
http://www.summitracing.com/parts/sd...RNIaAr2F8P8HAQ Or is this only work for aluminum to cast iron? |
10-19-2015, 06:11 PM | #26 |
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Re: Lower water pump bolt
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10-19-2015, 06:40 PM | #27 |
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Re: Lower water pump bolt
Simple, just do the same as 'Henry' did, steel bolt and lock washer.
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10-19-2015, 07:39 PM | #28 |
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Re: Lower water pump bolt
Steel bolt, steel washer, replace antifreeze with two gallons of Jim Beam. Problem solved.
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10-19-2015, 08:29 PM | #29 |
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Re: Lower water pump bolt
It's good that you learned and shared from your mistake....
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The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
10-19-2015, 10:58 PM | #30 |
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Re: Lower water pump bolt
How about bronze or monel bolts/washers (as in marine applications) ?
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10-20-2015, 12:25 AM | #31 |
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Re: Lower water pump bolt
Thank you Steve (I think)
So: 1. Do I assume a std ford (or steel) bolt will last longer in this situation? and 2. Does a corrosion inhibitor not stop this from happening (even with a stainless bolt and stainless washer?)? I have to wonder how the head gasket is affected (if at all) It makes me realize how important the inhibitor is when there are steel head gaskets involved. As an aside, I just checked out a you tube thing last night and the guy said to put a volt meter on 20v dc., hook one lead on the battery, and drop the other in the coolant. If it reads 0.3 of a volt or higher, the inhibitor is past its useby. He used a couple of other methods as well. I always wondered how to tell when it was time to replace it. |
10-20-2015, 02:56 PM | #32 |
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Re: Lower water pump bolt
51 MERC-CT,
This is a good topic you've brought up. Based on this chart I found, it appears the type of stainless steel used in the fastener affects galvanic action from "marginally increased" to "markedly increased". I used B8M bolts available from McMaster and they are Type 316 with ss lock washers. Not sure where that falls on the chart, but I had the rad off recently to install a new belt tensioner. Since I had access, I checked the lower bolts for tight and they were fine. This is after five years of running. So I'm wondering if the bolt is made up tight, then does the actual contact surface between lock washer and water pump stay dry and less prone to galvanic deterioration? |
10-20-2015, 04:44 PM | #33 |
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Re: Lower water pump bolt
On my engines the internal water pump bolt I use is always stainless with a matching stainless lock washer. Never discovered any type of corrosion on the bolt head or under the bolt plus the lock washer is also fine. The water pump bolt surface also looks fine. The set on my roadster have been in service for at least 20 years a good grade 316 stainless will last a long time at least they have in my application.
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10-20-2015, 04:55 PM | #34 | |
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Re: Lower water pump bolt
Quote:
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10-20-2015, 05:21 PM | #35 |
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Re: Lower water pump bolt
I'm quite sure a good quality steel bolt would live much longer than 20 years also. Personally I have not had a problem with Henry Ford bolts and I have taken an awful lot of engines apart.
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