Engine work for charity

[Golden Gate ER]

Here is something you don't see every day. This here is a 6-71 Detroit Diesel. She is a 2-stroke that is 100℅ mechanical. all that is required to run this engine is a fuel source & a way to start it. via electric starter, air starter & yes even hand crank. Rated at 150 to 318 HP depending on year and model variation.
Dont know the date of manufacture however I do now it was made prior to 1970 because it only had 2 exhaust valves in the head. (4 valves after 1970) I suspect this old beauty was made in 1951 because that's the year the boat it goes to was made. This engine was rebuilt atleast once in its life time and the block bored out .010" in the process. This engine ran up until last year.

Detroit Diesel started production of this engine around 1930 at stopped about 1995 only due to stupid government emissions regulations.

This pitucular engine I am rebuilding is for charity. I'm donating my labor & know how to the Liberty Maritime Museum which is operated by local Sea Scouts.

It's been 20 years sense I've seen one let alone repaired one. Fun & exciting project ahead.

 

[Leben]

Here is something you don't see every day. This here is a 6-71 Detroit Diesel. She is a 2-stroke that is 100℅ mechanical. all that is required to run this engine is a fuel source & a way to start it. via electric starter, air starter & yes even hand crank. Rated at 150 to 318 HP depending on year and model variation.
Dont know the date of manufacture however I do now it was made prior to 1970 because it only had 2 exhaust valves in the head. (4 valves after 1970) I suspect this old beauty was made in 1951 because that's the year the boat it goes to was made. This engine was rebuilt atleast once in its life time and the block bored out .010" in the process. This engine ran up until last year.

Detroit Diesel started production of this engine around 1930 at stopped about 1995 only due to stupid government emissions regulations.

This pitucular engine I am rebuilding is for charity. I'm donating my labor & know how to the Liberty Maritime Museum which is operated by local Sea Scouts.

It's been 20 years sense I've seen one let alone repaired one. Fun & exciting project ahead. View attachment 19317

Very cool, a mechanical work of art. Nice of you to donate your skills.

 

[Opa1]

Nice shop! Get that back in shape. Going to be some heavy lifting going on.

 

[RPMac]

DD is division of GM. These motors were designed to be rebuilt and for continuous use (no parts to wear out). Fuel system is low pressure pump and cam shaft triggered injectors (change injectors to change horsepower and fuel use).
Great motors!

 

[SPL db]

Very cool! Even cooler to get a chance to work on one of those once again!

 

[Thermionics]

Detroit Diesel started production of this engine around 1930 at stopped about 1995 only due to stupid government emissions regulations.

I'm going to disagree with you about emissions regulations - there's a reason we have them and a reason they are a very, very good thing.

 

[Golden Gate ER]

I'm going to disagree with you about emissions regulations - there's a reason we have them and a reason they are a very, very good thing.

Emissions systems in densely populated areas is a very very good thing. In secluded & rual areas it's simply not necessary and there's a steep and expensive burden.

My hatred of diesel after treatment systems is that the public is forced to have it & it's outrageously expensive to maintain. Just now I completed a Truck with a $13,000 bill because of a failure. Truck drivers, farmers, bus operations and entire trucking companies have been put out of business because of it. When the system fails the truck is disabled until the repair is made. I'm a master technician for Mack & Volvo. No customer with a after treatment system leaves with less than a $8,000 bill. Sometimes this number reaches $20,000. 60℅ of all semi truck engine failures are after treatment related. Currently there are 15 trucks in the shop 9 are here due to emissions system fault. 4 of which have less than 200k miles.

I would be more accepting of diesel smog systems if they where more cost-effective & actually worked for more than 18K miles at a time. The EPAO7 regulation was fine it reduced NOx by 80℅ and particulates by 200ppm. I'm convinced the technology to reach the 2015 requirements is simply to far to reach and simply over the top. I could go on forever about this subject however I won't.... I will encourage you to read up on the negative effects of these systems.

 

[RPMac]

I

Emissions systems in densely populated areas is a very very good thing. In secluded & rual areas it's simply not necessary and there's a steep and expensive burden.

My hatred of diesel after treatment systems is that the public is forced to have it & it's outrageously expensive to maintain. Just now I completed a Truck with a $13,000 bill because of a failure. Truck drivers, farmers, bus operations and entire trucking companies have been put out of business because of it. When the system fails the truck is disabled until the repair is made. I'm a master technician for Mack & Volvo. No customer with a after treatment system leaves with less than a $8,000 bill. Sometimes this number reaches $20,000. 60℅ of all semi truck engine failures are after treatment related. Currently there are 15 trucks in the shop 9 are here due to emissions system fault. 4 of which have less than 200k miles.

I would be more accepting of diesel smog systems if they where more cost-effective & actually worked for more than 18K miles at a time. The EPAO7 regulation was fine it reduced NOx by 80℅ and particulates by 200ppm. I'm convinced the technology to reach the 2015 requirements is simply to far to reach and simply over the top. I could go on forever about this subject however I won't.... I will encourage you to read up on the negative effects of these systems.

I agree.
That 6-71 is polar opposite of what you are dealing with today.
What people don’t seem to understand is the cost of regulations is always paid by the end users...consumer/taxpayers. Regulations should be balanced with economics and not based purely on theoretical benefits.

 

[adaug]

What people don’t seem to understand is the cost of regulations is always paid by the end users...consumer/taxpayers. Regulations should be balanced with economics and not based purely on theoretical benefits.

this is getting pretty far afield from hifi and i apologize for that and am going to say this and then stop. the downside of that economics argument is that the costs of the emissions are borne by thousands of people in the form of health effects. yes it costs more to have a low emissions vehicle - but the fact that it causes less damage shuold be worth it (if the regulating agency did its cost benefit analysis well). when considered broadly, economics actually favors a strong level of vehicle emissions control.

 

[gable]

Here is something you don't see every day. This here is a 6-71 Detroit Diesel. She is a 2-stroke that is 100℅ mechanical. all that is required to run this engine is a fuel source & a way to start it. via electric starter, air starter & yes even hand crank. Rated at 150 to 318 HP depending on year and model variation.
Dont know the date of manufacture however I do now it was made prior to 1970 because it only had 2 exhaust valves in the head. (4 valves after 1970) I suspect this old beauty was made in 1951 because that's the year the boat it goes to was made. This engine was rebuilt atleast once in its life time and the block bored out .010" in the process. This engine ran up until last year.

Detroit Diesel started production of this engine around 1930 at stopped about 1995 only due to stupid government emissions regulations.

This pitucular engine I am rebuilding is for charity. I'm donating my labor & know how to the Liberty Maritime Museum which is operated by local Sea Scouts.

It's been 20 years sense I've seen one let alone repaired one. Fun & exciting project ahead. View attachment 19317

One of my favorite diesels. Very cool project!