rnummi wrote: ↑Thu Jan 28, 2016 6:33 pm
Just some posts I dug up while surfing on a rainy day.... Enjoy.
The MB21A and MD21B use the Indenor XDP4/90 base engine.
Indenor stands for 'Industrie du Nord Est' which later became part of Peugeot.
The engine was to be found in Peugeot 504s, Citroen J7 vans, Opel Blitzs, Ford (UK) Granadas and a few others besides. It is still (or at least was last time I checked) used in the Mahindra Jeep from India where it is still in production.
In addition to the Volvo Penta marinisation the same base engine was used by Vetus (Netherlands) in their P4-21 and by Lehman as the 4D61. Also lots can be found in the Netherlands just branded 'Indenor bootsmotor' and painted bright red.
Only Volvo to my knowledge went to the lengths of replacing the standard timing chain with timing gears though.
My own is 30 years old and still going strong.
The circulation pump is showing first signs of a problem but there's a company in the UK that will rebuild it for a reasonable price.
I've learned a fair bit about these engines so any questions just ask.
The XDP4/90 or XDP4.90 derivation is well known here in the UK as I guess it was a much more common engine in its automotive form in Europe. For maintaining the non-Volvo bits I use the Peugeot 504 2.1D workshop manual published by Haynes and can confirm the 2112cc base engine is identical.
They were said to be 'good for 300,000 miles in taxis' so the only real problem should be maintaining the salty bits.