Unfortunately the 5.7-J service manual isn't available online for free that I know and the manual that covers up to the 5.7GXI-F would make your special type exhaust elbow size only a "guess" for true accuracy... 'Not to mention the confusion that incorrect manual shows for torque specs as it says on one page High-Rise Elbows are 12-18 ft.lb. then on another page says first pass is 11 ft.lb. and final pass is 27 ft.lb. but the higher torque specs may be covering the non high rise elbows with shorter bolts...Again a guess. http://boatinfo.no/lib/volvo/manuals/5057a-f.html#/60 http://boatinfo.no/lib/volvo/manuals/5057a-f.html#/162
That mentioned your GXi-J OEM manual part number is 7748089 and without a Volvo dealer looking up the info you need for you your two options online would be to either order one manual used from say EBay as seen here, https://www.ebay.com/sch/i.html?_fro...48089&_sacat=0
Search out Volvo penta bulletin p-25-1 5 and Volvo penta bulletin p-25-1 4 as they mention your elbow size and how to install them with special sealer but don't offer the torque specs. http://forum.chaparralboats.com/inde...ers-volvo-50l/
Thank you have been having this problem with the J series and did notice that I have to buy manual, was hoping maybe someone has the book and could tell me proper Torque
I too have the GXI-J and have researched the same figures as I will be re-installing a new engine in the next couple weeks. I have seen different figures also all in the 27-30ft/lbs range. Unless I find something more specific, I`ll shoot for an average in that range.