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Forum: Sport Cruisers

06-19-2012, 12:31 PM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

I confirmed I'm running at about the right RPM. I...

I confirmed I'm running at about the right RPM. I thought the red-line on the tach was 5,000. But when I looked again, I realised it was more like 4600 (or maybe it was 4700?), but certainly not the...

Forum: Sport Cruisers

06-15-2012, 03:28 PM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

I'll double check it, thanks for the heads up. ...

I'll double check it, thanks for the heads up.

I had called Mercruiser and they thought that 4900 was about a good target, but looking at the manual that I found, it looks like WOT should be in...

Forum: Sport Cruisers

06-15-2012, 10:47 AM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

I finally picked up the boat. After a long saga...

I finally picked up the boat. After a long saga (isn't this always the way?), the dealer found that the oil cooler was leaking (after that first test ride, we found a small oil sheen behind the...

Forum: Sport Cruisers

05-31-2012, 06:16 PM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

Intersting turn of events, I spoke to the dealer...

Intersting turn of events, I spoke to the dealer and he said that they were out testing the boat today (the trim tab was leaking oil which they had to repair) and they had the boat up to 35 MPH, and...

Forum: Sport Cruisers

05-31-2012, 03:04 PM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

Thanks for the advice to call Mercruiser. I was...

Thanks for the advice to call Mercruiser. I was on the phone with them for a while and they don't think it's the prop hub. He said if the hub was spinning, the RPMs would probably be higher as there...

Forum: Sport Cruisers

05-31-2012, 02:33 PM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

Thanks for the advice. I'm up at Winni. So...

Thanks for the advice. I'm up at Winni.

So is a 18 inch diameter prop correct for this engine/hull combination? Most of the online calculators list about a 14.5 inch diameter.

Forum: Sport Cruisers

05-31-2012, 01:08 AM

Replies: 10

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Views: 9,114

Posted By ImRich

1990 SCR-27, Merc 7.4l Bravo, prop and drive questions

Hi all!

I'm new here today. I have an older boat, 1990, I just purchased, it's going to be a slow restoration project. I haven't figured out how much will be restored yet.

So here's the first...

Showing results 1 to 7 of 7

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