| Page 1 of 2 | 1 | 2 |
|
|
how shallow is unsafe for outdrive/outboard?
On 3/2/11 6:50 PM, dmo@omd. wrote:
hi, i'm wondering where the water intake is for the cooling system on outdrives and outboards. it seems that it should be far enough up that it wouldn't be in much danger of sucking up sand, but someone recently warned me to be a lot more careful about not starting an engine when the prop is resting on the sand. how low is the intake? Look for intake vents between what is usually called the cavitation plate and the pointy bottom of the skeg. The intakes typically are right in that area. I would be wary of starting an engine while the proper is "resting on the sand." |
how shallow is unsafe for outdrive/outboard?
|
how shallow is unsafe for outdrive/outboard?
hi,
i'm wondering where the water intake is for the cooling system on outdrives and outboards. it seems that it should be far enough up that it wouldn't be in much danger of sucking up sand, but someone recently warned me to be a lot more careful about not starting an engine when the prop is resting on the sand. how low is the intake? |
how shallow is unsafe for outdrive/outboard?
Harryk wrote:
On 3/2/11 6:50 PM, dmo@omd. wrote: hi, i'm wondering where the water intake is for the cooling system on outdrives and outboards. it seems that it should be far enough up that it wouldn't be in much danger of sucking up sand, but someone recently warned me to be a lot more careful about not starting an engine when the prop is resting on the sand. how low is the intake? Look for intake vents between what is usually called the cavitation plate and the pointy bottom of the skeg. The intakes typically are right in that area. I would be wary of starting an engine while the proper is "resting on the sand." Who usually calls it that? I've never owned an OB with a cavitation plate and I've owned almost a dozen. |
how shallow is unsafe for outdrive/outboard?
|
how shallow is unsafe for outdrive/outboard?
On 3/2/2011 4:50 PM, dmo@omd. wrote:
hi, i'm wondering where the water intake is for the cooling system on outdrives and outboards. it seems that it should be far enough up that it wouldn't be in much danger of sucking up sand, but someone recently warned me to be a lot more careful about not starting an engine when the prop is resting on the sand. how low is the intake? Depends on the motor too. Optimax ProXSs are particular susceptible to plugging. They have two issues. One if the motor does not come up to full temperature before running it up to WOT in cold water it is at risk of seizing a piston. If the motor picks up sand and gravel at the wrong time it can stick in the thermostats preventing them from closing. If they do not close the engine may not come up to full temperature the next time it cools down and is started. Also, the water bypass (****er) circuit is responsible for cooling the air pump. The ****er exit port has a sharp bend internally and small particles tend to stick at that point closing off the hole. When this happens water does not flow through the air pump and you get an air pump overheat warning. Since a lot of (most?) of this series of motor has low water pickups to maintain pressure at higher running heights of the motor, starting with the prop on or near sand is almost guaranteed to cause it to pickup sand and gravel. I am sure other motors may have similar or different issues with sand and gravel. |
how shallow is unsafe for outdrive/outboard?
|
how shallow is unsafe for outdrive/outboard?
"HarryisPaul" wrote in message ... In article , says... On 3/2/11 6:50 PM, dmo@omd. wrote: hi, i'm wondering where the water intake is for the cooling system on outdrives and outboards. it seems that it should be far enough up that it wouldn't be in much danger of sucking up sand, but someone recently warned me to be a lot more careful about not starting an engine when the prop is resting on the sand. how low is the intake? Look for intake vents between what is usually called the cavitation plate and the pointy bottom of the skeg. The intakes typically are right in that area. I would be wary of starting an engine while the proper is "resting on the sand." What's a "proper" idiot? What is it about Newsgroups that prompts some people to be both hostile and unhelpful? |
how shallow is unsafe for outdrive/outboard?
On 3/26/2011 2:21 AM, Alex wrote:
wrote in message ... In , says... On 3/2/11 6:50 PM, dmo@omd. wrote: hi, i'm wondering where the water intake is for the cooling system on outdrives and outboards. it seems that it should be far enough up that it wouldn't be in much danger of sucking up sand, but someone recently warned me to be a lot more careful about not starting an engine when the prop is resting on the sand. how low is the intake? Look for intake vents between what is usually called the cavitation plate and the pointy bottom of the skeg. The intakes typically are right in that area. I would be wary of starting an engine while the proper is "resting on the sand." What's a "proper" idiot? What is it about Newsgroups that prompts some people to be both hostile and unhelpful? You must be referring to Harry Krause. He is nasty by nature and he is unhelpful because he knows little, of value, about boats. I look forward to having many productive boating discussions with you, Alex. Welcome aboard. |
| All times are GMT +1. The time now is 09:18 PM. |
|
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com