Intake manifold torque specs for 1998 4.3 Lts mercruiser

[Alister Cara]

Any body know what it's the right torque bolts for the intake manifold SN OL316015 ? The manual has it listed as 35lb.ft (48N-M) in sequence.
I broke two bolts. It's that right ? Who has the Manual

Thanks a lot

 

[Fun Times]

It looks as if your using Mercruiser service manual number part number 90-861328 - SERVICE MANUAL #25 pages 3A-24 & 25? Have a look at the Torque Specifications 262 cid (4.3L) Engines on page Page 3A-2, You will see Intake Manifold Bolts 11lb-ft & 15Nm.
They say you are "supposed" to go by what's in the Torque Specifications for better accuracy when it comes to using service manuals.

Merc did have a service bulletin using your serial number though, I was able to find it online for you.

http://www.boatfix.com/merc/Bullet/97/97_01.pdf

Hope this helps, Good luck.

 

[Alister Cara]

Thats helps a lot, Thanks