I'm not sure if this is kosher, if not mods can kill it.
I found some other posts of interest on MD7's that I will post here. May be a it out of context.
Parting Out Volvo MD7A - SailNet Community
I am interested in the manifold in any condition, as I know how to remove the internal clogs & blockages. The problem is with the water
main entrance hole at the bottom of the manifold. The channel between this entrance and the inner manifold volume is very small and easily blocked. You have to drill out two of the tapped holes holding the exhaust elbow
flange and then drill a special hole in the body from which the blocking material is removed. This extra hole is then plugged with a screw, after tapping it.
, it is MARTEC International, Karlbergs Strand 4, S-171 62 Solna, SWEDEN
, TEL. +46 8 826610 FAX +46 8 832540
Martec - Martec / Volvo Penta
Kit model No. 901 - 1011
I have been installing fresh water cooling
kits by Martec since 1987 on several Volvo motors and even on one old Yanmar
and they reliability
is excellent. I never had any problem. They use a Johnson Pump electric pump
and have the added advantage water starts circulating as soon as you turn the key and keeps circulating when you stop the motor
until you turn off the key. This feature allow water cooling
inside even after you have stopped the motor
thereby bringing temperature down and minimizing deposits in the heat exchanger
Do try to revive your MD7: it is a fantastic little motor and as long as you use it regularly, use fresh water cooling and do regular maintenance
it will last forever. If you let it stand for more than a few months then the injectors tend to clog (3 holes per injector) but with the cleaning
kit (micrometric stainless steel
wires) you can clean them yourself, or Service
will clean them in the ultrasonic bath.
Volvo Penta MD6b Cold Start System - Page 4 - SailNet Community
website for the starter rebuilder - he did a great job at a low price
Buckeye Auto Electric
if you have a Volvo starter ( probably Atomic or Westerbeke
too) just ship it to him
Need Volvo MD6 Parts - SailNet Community
The MD6A&B models are virtually identical. And because this version of the Volvo small block diesels had such a short-lived ('75-'76) production run, it's almost impossible to find parts 37 years later for a cast exhaust manifold. I'm still able to find regular seals/impellers/filters/etc (small parts) for the motor.
I was able to track down a company on the east coast
, French Creek Marine
(NY), that made SS manifolds as an aftermarket replacement, but they're retailing for ~$1500.
milky oil in a volvo md7 - Page 3 - SailNet Community
Good thread on replacing a water pump, a joy if you've not done it.
MD6A compression test adaptor.. - SailNet Community
Source for compression