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Search: Posts Made By: Valiant Knight
Forum: Engines & props 14 August 2022, 06:51
Replies: 6
Views: 1,361
Posted By Valiant Knight
Thanks. I will take the engine (and the...

Thanks.

I will take the engine (and the boat) to a Suzuki dealer to check the water pump and the impeller.
Forum: Engines & props 13 August 2022, 07:09
Replies: 6
Views: 1,361
Posted By Valiant Knight
Thanks for your reply. It is the first time...

Thanks for your reply.

It is the first time I use the boat (and engine) in 2022. It was kept out of the water since October 2021.
I normally use the boat in fresh water (lakes and rivers).
...
Forum: Engines & props 12 August 2022, 17:53
Replies: 6
Views: 1,361
Posted By Valiant Knight
Suzuki DF 90 (2006) engine temperature

My Suzuki DF90 (2006) runs smoothly and goes up to 5k RPM without any problems, but, when idle, in neutral, after a few moments (less than 1 minute) it wil start beeping and the "temp" led will start...
Forum: Engines & props 23 November 2020, 07:57
Replies: 8
Views: 2,958
Posted By Valiant Knight
Thanks for the info. Just one comment. The...

Thanks for the info.
Just one comment.
The recommended RPM range for the DF 90 is 4.5 k - 5.5. k.
Using a 17", 3 blade propeller the RPM at WOT was around 6.2 k, above the recommended range.


...
Forum: Engines & props 22 November 2020, 17:03
Replies: 8
Views: 2,958
Posted By Valiant Knight
Suzuki DF 90 (2006) performance

My Valiant PT 520 RIB (5,2 m) is equipped with a Suzuki DF 90 from 2006.
I had a 17" propeller installed but the engine ran "too fast" (6.2 k rpm).
I moved to a 19" propeller and the RPM at WOT...
Forum: Engines & props 20 November 2019, 17:57
Replies: 6
Views: 8,527
Posted By Valiant Knight
I would like to thank you for the replies. ...

I would like to thank you for the replies.


It is the first time I measure the average consumption of the RIB under a "constant" speed, long journey situation and I would like to have the...
Forum: Engines & props 19 November 2019, 06:31
Replies: 6
Views: 8,527
Posted By Valiant Knight
Suzuki DF 90 fuel consumption

A few weeks ago I took a weekend trip up and down the Douro river (Portugal) on my Valiant PT-520 (2005) equipped with a Suzuki DF90 (2006) and a 3*13.875*19 alloy Solas propeller.
The boat load was...
Forum: RIBs & ribbing 28 November 2016, 17:57
Replies: 5
Views: 2,196
Posted By Valiant Knight
I use a Valiant PT 520 with a DF 90 Suzuki. Both...

I use a Valiant PT 520 with a DF 90 Suzuki. Both from 2006. Plenty of fun in rough waters.
Valiant is now owned by an american company and they don't do that kind of boats any more.
Look at...
Forum: Engines & props 28 November 2016, 17:49
Replies: 26
Views: 3,579
Posted By Valiant Knight
I used "Doelfin" hydrofoils on all my RIBs. The...

I used "Doelfin" hydrofoils on all my RIBs.
The result on the 3.5 m with a 25 hp engine was outstanding.
The result on the 4.5 m with a 40 hp was still impressive
I now use them on a 5.2 m with a...
Forum: Engines & props 27 November 2016, 21:02
Replies: 25
Views: 8,797
Posted By Valiant Knight
MPH vs Knots

I apologize about the remark but, in Portugal, we use km/h and not mph (for land speed) so, for me, mph means nmph or knots.
Since 45 knots for this kind of boats is quite fast, I was only trying to...
Forum: Engines & props 27 November 2016, 18:33
Replies: 25
Views: 8,797
Posted By Valiant Knight
RPM range

Thanks for the info.

My engine is from 2006. DF 90 and not DF 90 A.
Recommended max. RPM range is 4.5 k - 5.5 k (Suzuki manual)

Antonio Manuel Carrapatoso
Forum: Engines & props 27 November 2016, 17:32
Replies: 25
Views: 8,797
Posted By Valiant Knight
Thanks for the info. Just a few extra...

Thanks for the info.
Just a few extra questions:
When you state 45 mph, do you mean 45 knots?
What RPM did you get at WOT? Under what load?

Antonio Manuel Carrapatoso
Forum: Engines & props 27 November 2016, 16:20
Replies: 25
Views: 8,797
Posted By Valiant Knight
ECU malfunction (2)

Apparently the engine was running on 2 cylinders instead of 4...
Hard to understand how that was not noticed in the yearly maintenance.
:-(

Antonio Manuel Carrapatoso
Forum: Engines & props 27 November 2016, 16:12
Replies: 25
Views: 8,797
Posted By Valiant Knight
ECU malfunction

After a long struggle with the performance of the engine, I decided to change the shop I did the maintenance of the engine.
After an ECU replacement, I got back to 6.2 k rpm and 32 knots with just...
Forum: Engines & props 23 June 2016, 14:09
Replies: 3
Views: 2,423
Posted By Valiant Knight
Thanks a lot for the detailed description of the...

Thanks a lot for the detailed description of the action.
Just a basic question. How should I heat the blade?
Forum: Engines & props 23 June 2016, 12:36
Replies: 3
Views: 2,423
Posted By Valiant Knight
Damaged aluminium propeller

I have a Solas Amita aluminium propeller (13.875*19*3) with a slightly bent blade. I already bought an alternative propeller, Solas Rubex Plus (13.875*17*3) with a lower pitch and had it installed....
Forum: Engines & props 14 December 2015, 21:54
Replies: 25
Views: 8,797
Posted By Valiant Knight
Dear all: Thanks for the hints. I am going...

Dear all:

Thanks for the hints.
I am going to try a Solas Amita 3*13.875*17 (17 instead of 19).
I will let you know the results as soon as I am able to test the solution.

Regards

Antonio...
Forum: Engines & props 13 December 2015, 14:59
Replies: 25
Views: 8,797
Posted By Valiant Knight
My Suzuki DF90 is a 2006 model, not a DF90A. ...

My Suzuki DF90 is a 2006 model, not a DF90A.
Top speed with the Rubex (3*13.25*17) propeller was around 30 kts at around 6000 rpm.
With the Amita (3*13.875*19) propeller the top speed is lower...
Forum: Engines & props 13 December 2015, 14:34
Replies: 25
Views: 8,797
Posted By Valiant Knight
I chose Solas because I had good references of...

I chose Solas because I had good references of the manufacturer. The options were SS or Aluminium, 3 or 4 blades, 17 or 19 inches pitch. Diameters vary from 13.25 to 13.875 depending on model (Rubex,...
Forum: Engines & props 13 December 2015, 14:33
Replies: 25
Views: 8,797
Posted By Valiant Knight
I chose Solas because I had good references. The...

I chose Solas because I had good references. The options were SS or Aluminium, 3 or 4 blades, 17 or 19 inches pitch. Diametres vary from 13.25 to 13.875 depending on model (Rubex, Rubex + or Amita -...
Forum: Engines & props 13 December 2015, 08:25
Replies: 25
Views: 8,797
Posted By Valiant Knight
Suzuki DF90 propeller for a 5.2 m RIB

I had a Solas Rubex 3*13.25*17 aluminium propeller on my 5.2 m Valiant PT520 RIB. When I bought the boat, used, in 2011, it was already equipped with that propeller.
Since one of the blades got...
Forum: Engines & props 03 December 2015, 21:24
Replies: 6
Views: 6,490
Posted By Valiant Knight
Thanks for the hints. It seems I passed the 100...

Thanks for the hints.
It seems I passed the 100 hour limit.

António Manuel Carrapatoso
Forum: Engines & props 29 November 2015, 06:29
Replies: 6
Views: 6,490
Posted By Valiant Knight
Suzuki DF90 Oil Pressure Warning

The Oil Pressure Warning of my Suzuki DF90 (2006) started blinking but the engine continues to run normally.
The oil level seems to be ok.
Any hints?

Thanks.

Antonio Manuel Carrapatoso
Forum: Engines & props 28 June 2015, 22:34
Replies: 0
Views: 1,649
Posted By Valiant Knight
Solas Amita 3 or Rubex 3 Plus

I am looking for a 3 blade propeller for a Suzuki 90 DF (2006) mounted on a 5.2 m Valiant PT 520, to replace a Solas Rubex 3 (3*13.25*17).
Both the Solas Amita 3 or the Solas Rubex 3 Plus,...
Forum: Engines & props 13 June 2015, 13:52
Replies: 1
Views: 951
Posted By Valiant Knight
Prop for DF90 Suzuki

I have a 5.2 meter Valiant PT RIB with a DF90 Suzuki (2006).
I bought the boat and engine in 2011 and the engine was fitted with a SOLAS Rubex 3*13.25*17 (aluminium) propeller.
Under light load I...
Showing results 1 to 25 of 30

 


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