Repair Shop Experience

[john9861]

   
    On our way to the Nashville rally we blew an injector tip & burnt a valve. This also washed out the cylinder & possibly this had been happening for a while as we had been dealing with the heavy black smoke issue. I got WW Williams in Atlanta to send someone to check it out in case it didn't have to be towed. The technician (John Allen) was very good with his diagnosis procedure & I began to feel very confident in his abilities & the way he handled dealing with me. Very honest & straight shooter Even the tow company was very good & carefully handled the bus.
There was lots of communication through phone & emails. The repairs were completed in 3 weeks which included an extra week waiting on a replacement injector for a new one that was stuck open. Decided to replace all injectors since this was the 2nd split tip injector in less than 1000 miles. Reworked head, 1 cylinder kit, new injectors, rack run, all new hoses, new fuel filters & all new fuel lines, throttle delay worked on, reset the no load rpms which was set 500 too high, steam clean engine compartment to get rid of all the black sutt, & this is getting so long winded I'll just say that I was very pleased at the performance of the engine & all the black smoke issue is now gone. If you are near Atlanta & need help please don't hesitate to use WW Williams near the airport. They have a group of guys that specialize in 2 strokes. Don't hesitate to call on this company. They were very good to us.

[Geoff]

How much?

[thomasinnv]

Just curious, you say the no load rpm was 500 too high...what was it? There are about as many different opinions as there are members on this board as far as what the no load rpm should be set at. Myself, I don't set it too the bus manual, I set it according to the DD book.

[Utahclaimjumper]

If you keep spitting injectors, I would look for water in your fuel system.>>>Dan

[john9861]

 

How much?

Total cost  $5500 excluding tow of $500. Don't know what that means to you but to me the feeling I now have concerning the engine performance helps me swallow a little better. I wish I had known these guys before my last repair shop outing. It may have saved me thousands...

Just curious, you say the no load rpm was 500 too high...what was it? There are about as many different opinions as there are members on this board as far as what the no load rpm should be set at. Myself, I don't set it too the bus manual, I set it according to the DD book.

2650. It was reset at 2200.

If you keep spitting injectors, I would look for water in your fuel system.>>>Dan

   Now that statement caught my eye. Is there a test of my fuel that will tell me if I have an excess of water there?  Or do I put the water remover alcohol in & keep my fingers crossed?  I can say that NOW the engine operates better than it ever has...
 

 

[thomasinnv]

2200 seems kinda low. Is that right for a 6v92? da book says 2450 for my 8v71. like I said, everyone seems to have a different opinion for what it should be.

[Bill in KS]

Yes, you can test your fuel, it cost round $100.00.  More importantly is who you are getting your fuel from and what their tanks look like inside. If you will use a good fuel treatment it will emulsify the water and get it out of the system. 

I've pulled fuel right off of one of our local jobbers and it had over 115ppm water, 100ppm is the allowable limit.  ( this was farm fuel )


I pulled a sample off of two tanks at a local fuel place and one had water standing in the bottom of the tank and the other had bacteria starting to grow. 


Bill in KS


Diesel fuel storage and diesel fuel systems need maintance just like other systems on your bus. 

Bill in KS

[luvrbus]

I set the 6v92 on 2250 rpm that's about as high as I will go on a 92 series

good luck

[DMoedave]

If you can dip your tank with a stick there is a paste you can buy at a plumbing or oil burner service that will show water in your tank. Mr dan from utah has a great point!!!