Logo
FULL SITE MENU

Mystery Bolt!?

T

taylor021

New member
I recently had my engine removed by a shop in order to free some broken starter bolts (that's a whole nother story...) After having the engine replaced and repaired, we brought the boat out on the lake for a couple trips. After this I opened up the engine bay and saw this bolt laying in the bottom of the bilge. I search all around the engine looking for where it may have come from but couldn't find a spot to stick it back in.

It looks very similar to the bolt heads of the engine mount however the icon on the top is slightly different and non of the bolts are missing in the mounts.

Do you think I am missing the spot where this bolt belongs or could it just be an extra bolt that was dropped from the shop that removed and replaced my engine?

Any help would be appreciated!

https://photos.app.goo.gl/fpebUfqZLaYxFzEL8

https://photos.app.goo.gl/2KUP8vyFxjyxzzDPA

Volvo Penta 3.0 (2003)
 
i'd guess someone dropped a bolt, easier to grab a new one sometimes than dig something from under the engine.
 
I found it!

After another thorough examination of the motor, I found the hole for the bolt! It appears to be a support arm of sorts for the water pump hose.

https://photos.app.goo.gl/LC2ofNRFkHJUmxpV9

New question: the end of the support arm (circled in red) does not have a hole in it. Is the water pump just suppose to rest on this support arm without being secured to it? The end of the arm seems to be full of some type of thick grease or tar.

https://photos.app.goo.gl/HsaL6XwDbhqgBUCi6

​​​​​​​
 
Looks like a crank shaft driven raw water pump? The bracket be bolted to the engine and the pump. Can't tell from pics. Is it?
 
sandkicker said:
re: " the icon on the top is slightly different" meaningless for your purposes.
Click to expand...

The reason I mentioned that is because the bolt is slightly different from the other bolts on the engine mounts indicating that it wasn't likely a dropped bolt from those engine mounts that was simply replaced during the engine replacement.

Nevertheless, I figured it out!
 
noelct said:
Looks like a crank shaft driven raw water pump? The bracket be bolted to the engine and the pump. Can't tell from pics. Is it?
Click to expand...

You got it! The bolt was holding up the support bracket for the water pump. The other end of the support arm does not attach to the water pump but simply rests against it with a rubber grommet to prevent the pump from spinning during engine operation.
 
Back
Top