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Showing results 1 to 11 of 11
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Search: Posts Made By: Mechsmith
Forum: Engines 06-13-2014
Replies: 2
Views: 272
Posted By Mechsmith
Re: fuel pump repairs

They are not taboo. The difficulties are largely the high degree of cleanliness required and since they fail pretty rarely parts aren't easily availiable.

In the last 50 years I have never had...
Forum: Diesel 03-24-2014
Replies: 4
Views: 536
Posted By Mechsmith
Re: Perkins 4-107 Overhaul

I feel like talkin. Hope you feel like readin.

First when you have an older motor lets see what you have as far as the hard parts are concerned.:(

Get the thing warmed up and take her out some....
Forum: Diesel 12-22-2013
Replies: 6
Views: 783
Posted By Mechsmith
Re: Volvo Penta MD7A Where are Timing Marks? Which is #2 Cyl?

Unfortunetly logic may have little to do with it. At least one major manufacturer of inlines numbers motors from the flywheel (output) end. All three US auto manufacters use a different method of...
Forum: Diesel 12-22-2013
Replies: 6
Views: 783
Posted By Mechsmith
Re: Volvo Penta MD7A Where are Timing Marks? Which is #2 Cyl?

Basic timing.
To find or make your own timing marks.
First put the piston up.(either one) Then put a cellophane drinking straw through the (removed) injector hole. Back the crankshaft pulley until...
Forum: Diesel 12-19-2013
Replies: 6
Views: 783
Posted By Mechsmith
Re: Volvo Penta MD7A Where are Timing Marks? Which is #2 Cyl?

Valves rocking is the term used for the position of the pistons at valve overlap. At a very short time in the cycle both valves are moving. This is on the top of the stroke on the cylinder opposite...
Forum: Diesel 11-27-2013
Replies: 1
Views: 378
Posted By Mechsmith
Diesel overview

I have been working on agricultural equipment for many years. Hopefully some of my experience (s) will help.

A diesel is compression ignition. This means that the temperature generated by the...
Forum: Introduce Yourself 09-15-2013
Replies: 1
Views: 343
Posted By Mechsmith
Re: Sailstar Tallstar HID#00953 restoration

Most states use the Dep't of Motor Vehicles. Sometimes they are helpful. Sometimes not so.

Search Sailstar on this site. There are several there and somebody may know something about yours.
Forum: Diesel 09-10-2013
Replies: 6
Views: 544
Posted By Mechsmith
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

The oil pressure relief valve has to be situated before the filter. There is also one in the filter housing. In that case it is called an "oil filter bypass valve".

The squeaking noticed could...
Forum: Diesel 09-09-2013
Replies: 6
Views: 544
Posted By Mechsmith
Re: Assistance neeed for Volvo high oil pressure (jump) above 1300 rpm

First check it with a mechanical gauge. The electric gauges can short out. If it turns out to really exceed normal pressures then you have a problem with the relief valve. (Usually mounted in the...
Forum: Gear & Maintenance 07-22-2013
Replies: 8
Views: 483
Posted By Mechsmith
Re: Outboard fuel leak

That is an atmospheric vent for the float bowl. It should have gasoline vapor only. You have another carbureter problem. That fitting should lead to a screen, filter or cannister someplace away from...
Forum: Gear & Maintenance 07-15-2013
Replies: 2
Views: 440
Posted By Mechsmith
Re: '87 Johnson Sailmaster charging circuit

Don't worry about idle voltage. The alternator is too small to overheat the battery. If the charging voltage is somewhere between 12.8 V and 15.5 V you are gaining some but not too much. There is no...
Showing results 1 to 11 of 11

 

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