Overheating

Hi there! My 1974 Skier is overheating.I changed the impeller but problem still persists. Any ideas what to do next? Thanks, Lisa

Lisa,
How are you determining the overheat? By the gauge or are there other signs of the overheat? I ask because we have had members think their engines are running hot and it turned out to be a gauge or sender problem.

Oh, also, the impeller was pretty shredded.

Thanks I will look around for chunks and let you know.

Lisa,
David's suggestion is a good one since you can do some diagnosing on the trailer BUT, make sure you also take his suggestion with utilizing the Timmy Tee method of supplying water. The danger with using a direct garden hose connection is the water pressure from the hose will mask cooling system problems. The Timmy Tee being an open system allows the RWP to suck what it needs without adding any water pressure. Also be aware of the Perko Flush Pro as it too pressurizes the system masking system problem. Besides, it's a plastic piece of junk anyway!!


Here's a thread with some info on the Timmy Tee.

Hi..so stupid question...where does the Timmy Tee go on a mustang 302 engine (1974)

Lisa,
Any updates to tell us?

sounds like the battery is low on charge right now

Water pump housing could be oriented 180 off upon impeller replacement, its happened to many

Confirming water exits with just a few cranks would be good assurance before proceeding.

Shouldn't admit this but I did the 180 degree backwards when installing the water pump housing before . That problem really perplexed me for a while .

Good advice so far-I've been there with this problem-I traced back the hose from the raw water pump that runs under the engine to the trans cooler-look for dry cracks which allows air to be sucked in-next make sure trans cooler is clear-take off the intake hose at the top of the trans cooler and blow thru it to make sure it's clear to your water intake on the boat.When your sure all is clear, focus on the Raw water pump orientation previously mentioned, make sure your small o-ring is seated in the pump housing -recheck your worm gear clamps-this should get water flowing to your engine-good luck.

PS I too was a victim of the orientation of the raw water pump mounting!!

Hi! So my battery was shot and I just put the new one in. I dropped boat in the lake and she cranked right up. Brought her out and did couple of cranks no water coming out of the flaps. It got dark on me tho...so I will have to do the other steps tomorrow. Thanks to everyone for your posts. I will try again in the morning. Thanks, Lisa

Hmm, I thought an earlier post said to just turn key a couple of times to see if water came out exhaust. I didn't actually run the boat with no water source. Hope I didn't mess anything up

Last time I posted a pic it took quite a while to post. Someone said that it had to be approved?? Does anyone have a pic of their properly installed RWP please?

Thank you! How do I know if my engine is RH or LH? My belt spins counter clockwise.