Coolant top up


Head gasket? has any recent work been done there? pressurize cyl with compressed air and with rad cap off look for bubbles.

see any signs of leakage?
 
Rob VanSydenborgh said:
Haven't had any work done to it recently. What kind of tool do I use to presssurize the system?
Thx.
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Use the adaptor used for a compression tester, apply shop air AFTER you bring the piston to Top Dead Center. The engine may want to rotate if you don't have it at TDC so be careful you don't have your hand or other important body part resting on the primary.

My leakage tester has a fancy whistle that tells when I'm at TDC but a screw driver placed on top of the piston will show you when you are at TDC while slowly rotating the crankshaft.

Unless your compression tester is one piece... in that case cobble something that'll plug into the spark plug hole on one end and the other end plug into your shop air hose.

Finding something that'll fit the plug hole might be a chore so if I had a one piece tester I'd cut the hose and use a couple shop air quick connects so I could pressurize the combustion chamber and also use the compression tester gauge. Add a regulator, a couple gauges, some plumbing and you've made a leakage tester too.
 
Found my coolant leak I think. Some coolant hanging around under motor by motor mounts. Haven't located source yet, but hopefully its just a hose clamp or something minor...
 
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