If I remember correctly, some people hook up their ARB air lines to the distributors to pump them full of air pressure to further prevent water from getting inside. Interesting trick.
Also, a lot of distributor caps have a vent tube in them anyway, even if you plug up the distributor vent holes, so maybe it's still venting through the cap. I can't remember if ours has that cap vent or not. I know other Toyota caps do, though.
The Toyota 22RE caps actually have a rubber boot that covers the entire cap to help prevent water from getting inside. I lost that boot a long time ago and used to get water in there all the time when washing the engine. Once I siliconed the cap gasket, never had a problem since.
This thread has got me thinking about our distributors. I'll probably think about siliconing the distributor cap, maybe think about sealing off the distributor holes or running a vent line. Not that I do water crossings, but I do like a clean motor without the hassle of getting water in the distributor. Also, you never know when a 1 foot deep water crossing turns out to be something much worse. Or if crossing water may be your only way out. Nothing like having an engine die in the middle of a water crossing.
Also, a lot of distributor caps have a vent tube in them anyway, even if you plug up the distributor vent holes, so maybe it's still venting through the cap. I can't remember if ours has that cap vent or not. I know other Toyota caps do, though.
The Toyota 22RE caps actually have a rubber boot that covers the entire cap to help prevent water from getting inside. I lost that boot a long time ago and used to get water in there all the time when washing the engine. Once I siliconed the cap gasket, never had a problem since.
This thread has got me thinking about our distributors. I'll probably think about siliconing the distributor cap, maybe think about sealing off the distributor holes or running a vent line. Not that I do water crossings, but I do like a clean motor without the hassle of getting water in the distributor. Also, you never know when a 1 foot deep water crossing turns out to be something much worse. Or if crossing water may be your only way out. Nothing like having an engine die in the middle of a water crossing.
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