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Block coolant drain plug? (pic attatched)
- Thread starter NVRwheels
- Start date
5-90
NAXJA Forum User
- Location
- Hammerspace
RENIX block? The coolant drain plug should be higher up.
That looks more like the port for the knock sensor (should go into a blind hole, and probably threaded either 3/8"-16 or M10-1.5) down that close to the sump rail.
The block drain should be a bit higher and farther back, and take something like a 5/16" or 8m/m square drive (both are effectively the same.) I've been informed that it's threaded 3/8"NPT, which fact I'll probably take advantage of sooner or later...
That looks more like the port for the knock sensor (should go into a blind hole, and probably threaded either 3/8"-16 or M10-1.5) down that close to the sump rail.
The block drain should be a bit higher and farther back, and take something like a 5/16" or 8m/m square drive (both are effectively the same.) I've been informed that it's threaded 3/8"NPT, which fact I'll probably take advantage of sooner or later...
- Location
- Roanoke VA
Dead on Jon, thats the Knock Sensor hole there, the block drain is higher in the pic just peeking out from under the exhaust manifold. If its a RENIX (87-90) you do not have to have a knock sensor. If its a 91+ it doesn't have one anyway. By the wetness on the side of the motor it appears you may have a freeze plug leak, leaky valve cover or fuel leak on that side of the engine.
birchlakeXJ
NAXJA Forum User
- Location
- Melrose, MN
I personally don't mess with draining the block on any of my vehicles. I drain/flush in the engine bay; multiple times if necessary.
SeansXJ
NAXJA Forum User
- Location
- Antelope, Ca or on the Rubicon
i never use the drain plug, i hear you have to fab a tool to fit.
search... its there, i just read it last month.
search... its there, i just read it last month.
SeansXJ
NAXJA Forum User
- Location
- Antelope, Ca or on the Rubicon
just caught this