Black Snow Slide
Petty Officer 1st Class
- Joined
- Jun 15, 2007
- Messages
- 276
I am changing out my manifolds and risers on my VP 5.7 2006 for the first time. My mechanical skill is a 5/10. I have good access to both sides of the motor. The marina who does my work wanted $1300.00 parts and $650.00 labor. Money seems high but they always do a good job. Looking closely at it, I think I want to save same money and do it myself.
I have ordered all VP parts so no chance of things not lining up. What I ordered : VP 5.7 repair manual for my year of motor, exhaust manifolds, risers, exhaust manifold gaskets, riser gaskets, new bolts for risers and manifolds.
Tools I think I will need: 8 point sockets with both 1/4 and 1/2" drives, Torque wrench, 3 and 5" extensions, breaker bar, regular head screw drivers, hard plastic scraper, emery cloth, shop rags, shop vac and PB blaster.
What steps I think I will be taking to do the job.( I don't have the repair manual yet but it is ordered with parts.) : The 4 bolts on top of each riser and 6 manifold bolts on each manifold been getting a good shot of PB Blaster every day for 5 days. Take drain plugs out of manifolds to drain water. Disconnect the water inlet hose that goes into manifolds. ShopVac drain holes to make sure all water is out. Clean bilge. Loosen the 2 champs on the rubber on top of riser and slide off. Disconnect the two wires from the sending units on top of the risers. (What are those and should I order 2 new ones?) Take off the 4 riser bolts.(they have some pretty good rust where the bolts go into the manifolds. Any tips?) Once all four bolts are off, there are a few things that are attached to the riser bolts that I will move to the sides and secure with zip ties. Knock the risers loose with a rubber mallet. Once riser is off, shop back the center where exhaust goes through to hake sure nothing has fallen inside manifold. Put rag inside and then scrape off any loose stuff to try and keep clean.
Manifolds: Break each bolt lose.( How is the best way to do this as the last thing I need is to beak sheer off a stud head? I don't see any rust on any of the bolts. ) Pemove one of the studs and go to Lowes and buy same thread but 2 inches longer. I will buy 4 and cut the head off them and use them as pins to hold manifold as I take out others studs. Slide manifolds off pins and out of boat. Lightly vacuum exhaust ports and put rag inside to keep clean.
Cleaning surface for new gasket and manifold: using the hard plastic scrapper clean off as much as I can. I don't want a metal scrapper as I don't want to mar the metal surface. Final clean will be with enery cloth.
Reassemble: it will be the reverse of disassembly. I will use the headless bolts to hold gaskets in place and the risers as a guide on. Finger tighten everything. Tighten to half torque then to full torque in whatever sequence the manual states. Risers the same.
What am I missing and any tips? Any incouragemant? Any warnings?
I have ordered all VP parts so no chance of things not lining up. What I ordered : VP 5.7 repair manual for my year of motor, exhaust manifolds, risers, exhaust manifold gaskets, riser gaskets, new bolts for risers and manifolds.
Tools I think I will need: 8 point sockets with both 1/4 and 1/2" drives, Torque wrench, 3 and 5" extensions, breaker bar, regular head screw drivers, hard plastic scraper, emery cloth, shop rags, shop vac and PB blaster.
What steps I think I will be taking to do the job.( I don't have the repair manual yet but it is ordered with parts.) : The 4 bolts on top of each riser and 6 manifold bolts on each manifold been getting a good shot of PB Blaster every day for 5 days. Take drain plugs out of manifolds to drain water. Disconnect the water inlet hose that goes into manifolds. ShopVac drain holes to make sure all water is out. Clean bilge. Loosen the 2 champs on the rubber on top of riser and slide off. Disconnect the two wires from the sending units on top of the risers. (What are those and should I order 2 new ones?) Take off the 4 riser bolts.(they have some pretty good rust where the bolts go into the manifolds. Any tips?) Once all four bolts are off, there are a few things that are attached to the riser bolts that I will move to the sides and secure with zip ties. Knock the risers loose with a rubber mallet. Once riser is off, shop back the center where exhaust goes through to hake sure nothing has fallen inside manifold. Put rag inside and then scrape off any loose stuff to try and keep clean.
Manifolds: Break each bolt lose.( How is the best way to do this as the last thing I need is to beak sheer off a stud head? I don't see any rust on any of the bolts. ) Pemove one of the studs and go to Lowes and buy same thread but 2 inches longer. I will buy 4 and cut the head off them and use them as pins to hold manifold as I take out others studs. Slide manifolds off pins and out of boat. Lightly vacuum exhaust ports and put rag inside to keep clean.
Cleaning surface for new gasket and manifold: using the hard plastic scrapper clean off as much as I can. I don't want a metal scrapper as I don't want to mar the metal surface. Final clean will be with enery cloth.
Reassemble: it will be the reverse of disassembly. I will use the headless bolts to hold gaskets in place and the risers as a guide on. Finger tighten everything. Tighten to half torque then to full torque in whatever sequence the manual states. Risers the same.
What am I missing and any tips? Any incouragemant? Any warnings?