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vaccum leak engine, where to start?
- Thread starter Oseberg
- Start date
jneary
NAXJA Forum User
- Location
- springfield, virginia
disconnect and plug off the vacuum port that supplies vacuum to the reserve cannister
ParadiseXJ
NAXJA Forum User
- Location
- Paradise, CA 95969
...as a permanent fix??
IMHO I'd be looking for a leak in any of the hoses, fitting and grommets INCLUDING the vac cannister, not permanently disabling my vac reservoir system...and replacing the funky ones.
jneary
NAXJA Forum User
- Location
- springfield, virginia
no to isolate a vacuum leak
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
2 ways.
1) With the motor running spray a touch of starter fluid on all the vacuum connections until you hear the motor jump up about 100rpm. That port is leaking. Clean the engine off after doing this, and I would recommend not doing this with an excessively hot motor.
2) With the motor off, toke up a cigar nice and smokey and unplug a port and blow into it while having a friend look at the rest of the bay. Work your way around till you start to see a leak. This way does not work as well if you ask me, but you get a nice cigar out of it.
1) With the motor running spray a touch of starter fluid on all the vacuum connections until you hear the motor jump up about 100rpm. That port is leaking. Clean the engine off after doing this, and I would recommend not doing this with an excessively hot motor.
2) With the motor off, toke up a cigar nice and smokey and unplug a port and blow into it while having a friend look at the rest of the bay. Work your way around till you start to see a leak. This way does not work as well if you ask me, but you get a nice cigar out of it.
- Location
- Southern Maryland
I usually just end up replacing the whole vacuum harness anyway so I just do that first now. Buy or borrow a vacuum gauge to see if you actually have a leak.