Primer Routing

[Ron]

Anyone have pictures of primer lines routing for the O-320, 360 Carb engines...
Tks
Ron
9A..FWF

[jsharkey]

Hope it works!
Jim Sharkey
RV6 Tip-up FP O360-A1A

[Ron]

that's a routing I hadn't thought of, over the top, I was trying to route along the sides and along the sump, but over the top might be easier and neater!!
What are you using for a primer valve next to the gascolator?
Ron

[jsharkey]

Originally Posted by Ron

that's a routing I hadn't thought of, over the top, I was trying to route along the sides and along the sump, but over the top might be easier and neater!!
What are you using for a primer valve next to the gascolator?
Ron

Its the Parker valve that came with the Van's primer kit.

[az_gila]

This is a picture (bottom view of engine, looking up) giving Lycomings O-360 "tied to the intake pipes" version...



An extra support at the rear "T" and I plan on using a -3 teflon hose to the electric primer valve.

Note the optional primer tube to cylinder #3, which is usually used for a manifold pressure sense port...

gil A

[jsharkey]

Originally Posted by Ron

that's a routing I hadn't thought of, over the top, I was trying to route along the sides and along the sump, but over the top might be easier and neater!!
What are you using for a primer valve next to the gascolator?
Ron

I liked the fact that there is only one baffle penetration!

[az_gila]

Originally Posted by jsharkey

I liked the fact that there is only one baffle penetration!

Err... that's because the upper primer port holes are being used...

If you use the lower ones (per the Lycoming figure), then there are no baffle penetrations.... at least for carb. engines....

Primer port location at bottom left of the cylinders is shown on this Tiger O-360 (not mine......), same baffle arrangement on the cylinders as our RVs...



gil A

[jsharkey]

Originally Posted by az_gila

Err... that's because the upper primer port holes are being used...

If you use the lower ones (per the Lycoming figure), then there are no baffle penetrations.... at least for carb. engines....

Primer port location at bottom left of the cylinders is shown on this Tiger O-360 (not mine......), same baffle arrangement on the cylinders as our RVs...



gil A

Duh! I forgot about the lower ports

[Ron]

Gil, is the idea to shape the lines along the intake tubes, clamp to same, then tie to the sump and route back to the primer....
Ron

[az_gila]

Originally Posted by Ron

Gil, is the idea to shape the lines along the intake tubes, clamp to same, then tie to the sump and route back to the primer....
Ron

Yep... Lycoming sells premade lines.

There are special shaped clamps with a screw and small piece of rubber tube around the primer line on each intake.

You can see the clamp here....



The clamps at the sump are called "CLIP, 3/16 ID for 1/4 inch screw, cushioned type."

Sounds like an ADEL clamp designed for a 1/4 screw instead of the usual #10 screw.

gil A