575sci water temp
#1
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I just picked my 38' Scarab from Absolute S&M. They removed and replaced the intake on the port motor to replace a missing splash shield (that Derberry left out when they built the motor last year but thats a whole other post). Runs great and no more oil burning but on the sea trial after the repaired they said it overheated so they replaced the seawater pump impeller. Well, I took it out yesterday after I picked it up and running 45-60 mph the water temp runs about 130-140 (it ran about 115-120 before the repair) Now ,after running it for a while and returning it to idle the temp pops up to about 150 for about a minute and then settles down to about 120 ( like it did before the repair). The starboard motor stays at a solid 120 deg. Any ideas????
#4
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130 - 140 is what both of mine run. They will jump up a little after a run, but settle right back down.
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BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
#5
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120 seems very low for stock 140* thermistats...even for a 126* that is low. With 126* stat my 575 runs @ 132* or so. With the stock stat it ran just below 150*.
When I installed the 126* stat I drilled 3 1/8" bypass holes in the stat. It does not fluctuate in temp as much as it did with the stock stats.
When I installed the 126* stat I drilled 3 1/8" bypass holes in the stat. It does not fluctuate in temp as much as it did with the stock stats.
#6
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120 seems very low for stock 140* thermistats...even for a 126* that is low. With 126* stat my 575 runs @ 132* or so. With the stock stat it ran just below 150*.
When I installed the 126* stat I drilled 3 1/8" bypass holes in the stat. It does not fluctuate in temp as much as it did with the stock stats.
When I installed the 126* stat I drilled 3 1/8" bypass holes in the stat. It does not fluctuate in temp as much as it did with the stock stats.
#8
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#10
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I had the boost cranked up to almost 8# on my 525SC and still ran the 140* Tstat and recirc pump. It maintained nice consistent temps from 145 at idle to 155 after WOT runs.