md21a volvo penta diesel

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
I am haveing problems with my gas motor. A volvo mechanic has a md21a for sale, he says it can bolt on to my 270 outdrive. is this a good motor how do i clean my gas tanks for diesel, how much speed can i get out of this diesel.
 

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
Re: md21a volvo penta diesel

even though no one replied I got the motor have not hooked it up to my outdrive yet. I still need to figure out if i can put diesel in my old gas tanks, I still need to know if my 270 outdrive will work and I need to know about the gears for my outdrive the mechanic says i should change them. he looked at my boat and said he would install for fifteen hundred is this a good price or to steep
 

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
Re: md21a volvo penta diesel

also he says I can turbo this diesel motor for more hp how would i do that
 

Luhrs28

Chief Petty Officer
Joined
Jul 14, 2010
Messages
423
Re: md21a volvo penta diesel

Yes you can put diesel in your gas tanks. I did exactly that. Pump or drain as much of the old gas out as possible then just fill up with diesel. A little old gas mixed in with the diesel won't cause any problems. With mine I just changed the fuel filters after running the first 20 hours, on the assumption that they're going to catch any junk from the tank or varnish from the old gas.
 

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
Re: md21a volvo penta diesel

cool, thank you I will do that then what kind of motor did you swap out?.
 

Luhrs28

Chief Petty Officer
Joined
Jul 14, 2010
Messages
423
Re: md21a volvo penta diesel

Johnmorgan: I installed a GM 6.2 liter diesel V8 in place of the original Chrysler 360 gasser V8. There's a complete thread about it in this section. Just do a search for '77 Luhrs 28 repower.
 

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
Re: md21a volvo penta diesel

one good looking boat you have luhrs28. now I really want to get working on my boat but money is tight so I will have to put it on the back burner. oh well. work is going to pick up soon I hope. for now I am going to keep an eye open for info on the gears I am going to need to put in my leg for this diesel volvo md21a.
 

Vosman

Cadet
Joined
Jul 25, 2011
Messages
28
Re: md21a volvo penta diesel

Volvo used the 270 drive with the MD21. it had a 2.15:1 ratio.
 

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
Re: md21a volvo penta diesel

thank you for the info now i know what i need.
 

johnmorgan

Petty Officer 2nd Class
Joined
May 28, 2011
Messages
105
Re: md21a volvo penta diesel

do you know if i can put a turbo on my md21a? if i can which one and where do i buy it
 

Mainesailor

Recruit
Joined
Oct 10, 2011
Messages
1
Re: md21a volvo penta diesel

I would like to buy a Volvo MD21A for parts.

You may respond directly to: crowley at tidewater dot net.
 
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