A/T - 700R4 Front Pump Air Check
SIL 85-32Subject: 700-R4
OIL PUMP AIR CHECK
The oil pump assembly can be checked with compressed air to pin point blocked passages. This air check will assure that all the oil passages are open and all the cup plugs are properly installed. However, if an oil passage is only restricted, the use of compressed air will not be effective. If a restriction is suspected, use a pistol type oiler (with transmission fluid) instead of compressed air to perform these checks.
IMPORTANT
When performing these checks it will be necessary to block certain holes while feeding compressed air into others. For your protection wear rubber gloves and safety glasses.