I finally was able to take the '61 with TriPower 250 for a reasonable cruise with a few of the family. After ten years of upgrades, cruising the interstate at high speed with family in traffic had me reviewing all my work on safety related components. After a couple hundred miles my confidence is reassured but inspection revealed the valve cover breather came off.
I thought I knew it all :roll: so I have a question:
I hadn't thought about it before but the 250 has an intake vacuum PCV on rear VC port. The setup as built had a typical vented front VC breather port/cap as well. Shouldn't an operable PCV system not use a vented port on the VC?. Better to use a non-vented cap ?. I thought the "closed crankcase venting" PCV system needed closed vacuum to work properly?. This performance built engine is intact as built years ago but has components and build specs that add bit of a mystery.
Thamks
I thought I knew it all :roll: so I have a question:
I hadn't thought about it before but the 250 has an intake vacuum PCV on rear VC port. The setup as built had a typical vented front VC breather port/cap as well. Shouldn't an operable PCV system not use a vented port on the VC?. Better to use a non-vented cap ?. I thought the "closed crankcase venting" PCV system needed closed vacuum to work properly?. This performance built engine is intact as built years ago but has components and build specs that add bit of a mystery.
Thamks