The original exhaust riser is still available from Marine Parts Express for $252. It's not stainless, but it's the original Swedish casting and should last another 20 years or so. Check out their web site, they also provide schematics of the MD6 and 7 that you can down load and are helpful. Some of the prices are mind boggeling high, but I thought the exhaust riser was a fair value.
Patrick
www.marinepartsexpress.com/vp_sch_fs.html
________________________________
From: clinton_edmonds clinton_edmonds@...
To:
AlbinVega@yahoogroups.com
Sent: Thursday, May 28, 2009 9:02:37 AM
Subject: [AlbinVega] MD 7A Exhaust riserTo replace an unfixable, corroded exhaust riser, I went to a local blacksmith and he manufactured a replacement out of stainless for around $300 Canadian. I understand that the riser is the same for MD6 and MD7 Volvo diesels. I have uploaded photos of the result to the archives for information.
Clint Edmonds,
Gladwyena