Evinrude Service Bulletin ????

[KRH1326]

1987 Evinrude 175 HP E175TXCUA - Engine reassembly is coming along nicely, thank you to those who have helped me thus far...

Getting close to Intake manifold and carbs. I was told that these cross flow V-6's were prone to ring and/or piston failure due to carbon build up, which is the cause of my tear down and rebuild. I have read about the specific fuels, oils and additives and spray treatments to use as preventive maintenance.

I was also told that there was a "service bulletin" that advised to use a # 52 drill to increase the size of the high speed orifices, in the carbs. Was not given a bulletin number.

Before doing this, I would like to see and read it, for myself, but have not had luck with google... I find thousands and thousands of bulletins that I would have to sit and read through each one, hoping to get lucky and find the one that applies... Does anyone know how to search for a specific bulletin without the actual number?

Thanks, Kenny

 

[Faztbullet]

There may have be a TSB on jet replacement but factory would never tell you to drill them, most of coking problem are 2stroke oil and cylinder temps....

 

[KRH1326]

Ok.... Maybe my friend's rejet solution was the #52 bit. Is there a way to find this TSB without having to pour thru thousands of them, randomly? I tried to search for motor specific bulletins, so I could access info on my motor. Is there a way to find only those that pertain to mine?

 

[emdsapmgr]

Agree with Fastbullet, OMC would never suggest drilling of any jet. You might have luck calling the Bombardier (Evinrude) consumer hotline. 262-884-5993. In my 2.6, I run nothing but Bombardier XD50 oil, since it has a carbon guard additive. Premium fuel only. Every two years, I decarb the powerhead, but it does not get many hours each year.