'87 DT150 water pres. & temp gauges

[wjob]

Re: water press readings. Tried teeing into pisser hose but not enough press there to get a reading, at least with water going overboard through hose. Some one said to go to other side of engine and remove small plug and tee in there. If I do that assune I use a brass L fitting in place of plug and run hose off that. Do I need to drill hole through base of engine in order to run hose or is there a better way? Also any trick to removing that plug, use heat first?

Re: temp gauges. How do I hook up temp sender on each head? Understand there is no plug to remove in which I could thread in sender. Do they make a sender attachment of some sort that will work?

Re: trim/tilt rocker control at motor. Would like to add one and assume I'll have to drill appropriate hole through case?

thanks

 

[wjob]

Re: '87 DT150 water pres. & temp gauges

Will appreciate someone answering my questions!
thanks

 

[wjob]

Re: '87 DT150 water pres. & temp gauges

Can't anyone answer the questions in my original post?

thanks

 

[lowe160]

Re: '87 DT150 water pres. & temp gauges

I don't know on the dt150 but would suggest you go to Brownspoint Marine and download the diagrams on the engine. You should be able to get all your answers there. If not let me know and I will give you another source. Hope this helps.

Wayne

 

[wjob]

Re: '87 DT150 water pres. & temp gauges

I don't know on the dt150 but would suggest you go to Brownspoint Marine and download the diagrams on the engine. You should be able to get all your answers there. If not let me know and I will give you another source. Hope this helps.

Wayne

I didn't see anything on Brownspoint that helped. Will wait to hear from you.

thanks
Bill

 

[lowe160]

Re: '87 DT150 water pres. & temp gauges

Bill, go to the site and look at fig. 98 of the parts breakdown for your engine. The parts are shown there along with part numbers. If you have a problem with that just go to the Suzuki gauge section and they will give you different gauges along with install kits. If this don't work pm me or email and I will forward the link. Don't think I am allowed to here.

Wayne

 

[Silvertip]

Re: '87 DT150 water pres. & temp gauges

When installing a water pressure gauge you do need to provide a hole for the pressure hose to exit the engine so it can be routed up front. Check the rubber grommet where the shift/throttle cables enter the engine. There is usually enough material in that grommet to drill a hole for the hose. As for temp gauge installation, there are several types of senders. If you have no port into which a sender can be inserted, Teleflex and others make a bracket that bolts under a head bolt. You scrape the paint off the head and the sender then makes physical contact with the head. Install it as close to the plug as possible, on the highest cylinder. On "V" type engines you could install two senders with a port/starboard selector switch that lets you read temps using one gauge. As for the pressure gauge, there is no reason that gauge shoudn't work being T'd into the tell tale. Readings on a flusher will not be the same as when the engine is in the water. Can't be positive on the readings but 5-7 PSI at idle and 15 PSI at speed should be fairly close. When you install a pressure gauge, install a new impeller at the same time and note the idle and wide open throttle pressures. That gives you a bench mark and in the future any deviation or a gradual lessening of pressure is an indication something is going wrong -- most likely impeller replacement time. Unless you do that, you won't know what "normal" pressure is and since no two engines are exactly the same, you need to know whats normal for your engine.

 

[wjob]

Re: '87 DT150 water pres. & temp gauges

Wayne, appreciate yours and Silvertip's reply. Did pull up that Fig 98 and also pulled up the gauge hardware kit
but didn't show the bracket arrangement Silvertip described being available from Teleflex. I thought I had seen such a package.

Silvertip, are you sure I should get a psi reading, eventhough low, when I tee into line going to the tell tale? I was running in a big trash container so both intakes were under water and using a lasser temp gun I know both heads were cool but was getting 0 reading even when I took up to about 1500 RPM's? Someone said pressure reading would be much improved if I do it at that plug on the side opposite the tell tale?

Also, have any thoughts on on my last question in my original post dealing with installation of a trim/tilt switch at motor?

thanks

 

[wjob]

Re: '87 DT150 water pres. & temp gauges

In hooking up pressure gauge, I'm getting 0 pressure reading when I tee into tell tale line with tell tale unblocked (still flowing) and take up to 1500 RPM. This was running in a big trash container so both water intakes were under water and using a lasser temp gun I know both heads were cool. Someone said pressure reading would be much improved if I do it at that plug on the side opposite the tell tale?

Comments please.

thanks

 

[Silvertip]

Re: '87 DT150 water pres. & temp gauges

I'm not familiar with the cooling system on your engine but my Merc and OMC engines work just fine that way. It all depends on how water passes through the engine. If the tell-tale in a path separate from the water flow through the engine (in other words it's after the thermostat and poppet valve) it very likely won't provide a good pressure reading. If it's on the same path as the cooling water before the thermostat and poppet valve, then it should provide a good reading. You probably will need to remove the plug and use that port. The hose barb fitting will be included with the gauge.