Join Date: Dec 2012
Location: Mount Pleasant (Charleston), SC
Leak down test
As I was getting ready to put manifolds back on the engine, remembered #6 cylinder that had a clean spark plug when I got the car. After running couple bottles of Motul fuel system cleaner, testing injector (it clicks) and installing new spark plugs, all 6 plugs look the same. But still want to do a leak down test on cylinders to get to know the 3.0 bit better. Also it's easier to hear leaks with manifolds off.
I know firing order is 1-4-2-5-3-6 and need to bring each cylinder to TDC to be tested. Whats a best way to do that, getting TDC on each cylinder without removing the covers off the heads? I have a 1 5/8 (41mm) socket on the pulley to turn the engine and spark plugs are out, what's next?
Any guidance is much appreciated, as I could not find anything on V6 leak down test on here
P.S. I can't remember what is the correct way to install manifold gaskets? Flat side to the engine head, ribbed side toward manifold?
2018 Stelvio Ti Sport
1987 Milano Verde
1970 Euro-spec GTV 1750
Refreshing 1750 GTV
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Last edited by Nakagtv; 11-09-2017 at 01:29 PM.