Silver Block Fuel Problems

[OldMercsRule]

I run some older inlines, (the silver blocks were 1972 n' older), n they had brass fittings on their fuel loops from the male end at the base of the powerhead to the first of two fuel pumps in a gang looped to the three carbs on the sixes n' two carbs on the fours.

Nearly every 35 plus year old gas line with the "compression" fitting end attached to a "compression" end 90 degree elbow into a 1/8 pipe threaded male into either a carb or a fuel pump is likely failing or has failed.

I finally found the 90 degree fitting, that can replace the two above "odd ball" fittings that were impossible to match from current off the shelf brass fittings I searched through. I thought anyone running these older engines would like to know the part number and name so you can contact yer local brass fittings shop n' get the right one, (without having to search as hard as I did).

This is a "Parker" part # 129HB-5-2 90 degree hose barb for a5/16 gas line.

These will replace the 90 degree odd ball elbow and allow a person to build a fresh line from current alcohol resistent gas line to replace the one that seems the most vulnerable to the current fuels.

Hope that helps some of ya. JR

 

[Scaaty]

Re: Silver Block Fuel Problems

Looks like ya done some homework!

Should have the 13x23 twisting this week...

 

[rdgordon1@cox.net]

Re: Silver Block Fuel Problems

I just got my '69 650 fired after sitting for 20 years and this is info intended for me I would say.It runs as good as it did when I shut it off 20 years ago.
The only problems I had was the choke button is froze and the starter solenoid makes a nice healthy thunk but won't spin the starter.That is small stuff.If I can't flip the washer in it I will buy another.I had to rewire the harness on the engine side and with a new tank of gas she fired right up by jumping the starter.I will replace the waterpump impeller before she goes in the water but I now need to replace the floor/transom in my Glastron V-143 JetFlite.I have no indication that it won't run well at speed but of course I won't know that until I get my boat repaired.I will be watching that gas line and it makes me glad to have this place to pick up tips from.I posted a video on YouTube of the second start because I had to run to get my camera so the video shows it starting warm at low idle but she just purrs.I am a big Merc fan so it goes without saying that I am pleased.I will post the link to it if anyone is interested,it is about 6.5 minutes.Ron G

 

[Smig]

Re: Silver Block Fuel Problems

I'd like to see (actually hear) it...

 

[rdgordon1@cox.net]

Re: Silver Block Fuel Problems

Here is the link,it has pretty good sound although the the video takes a hit when you post it on YouTube but the original 640x480 vid is 118 mb which I reduced to 25 mb before I sent it to YouTube and they reduced it even further but it's free,right??)
I want to thank you for posting the link to the power trim instructions and also for the time it took to scan them.I just bought another 650 locally with power trim which I am in the process of changing over to my original motor and that info is a great help to me.Please try to overlook my dirty boat,I promise you that she will clean up just fine.The loud noise at the beginning is traffic going up the hill below my house.I narrated the vid the best I could because I was pretty excited about things and really had only planned to view the video myself but you really have to share these things as others have shared with you in the past.Enjoy it and any positive comments are welcome,I get enough criticism here at home.LOL Ron G
http://www.youtube.com/watch?v=wyDh5B_1k3E

 

[Plainsman]

Re: Silver Block Fuel Problems

Thanks OMR for the info!

You sound like a happy man Ron, and you should be! Video was great!!

 

[rdgordon1@cox.net]

Re: Silver Block Fuel Problems

Thank you plainsman,I am indeed very pleased with the outcome.I gave it a good wash yesterday with a squirt bottle of simple green and a couple capfuls of carwash stuff in my bucket of water since it was raining anyway and she looks pretty good now.I may even give it a coat of wax to keep up the momentum)Ron G