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Explorer

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Posts: 22
Reply with quote  #1 
Good morning All,
We have fitted a used engine to a different Explorer SPORTS 490 RIB and are testing props for best performance.
The engine is:

E90 DSLSEB Serial: 05235198 Build date 04/2008 at   235 hours.

We fitted this engine new to an Explorer SPORTS 575 RIB in 2008 which we have since repowered with an ETEC 130. 
While prop testing I am looking to achieve 5200 revs when light laden at about 45 mph.
The misfire occurs  - for brief periods of maybe 5 - 10 seconds - at any revs above 4800rpm. After that period the engine will run to 5100 revs for maybe 20 seconds and then misfire again.
What I find interesting is that I can usually, but not always,  trigger the misfire by touching the trim up or the trim down buttons.
I thus have checked all the electrics for chafing, and found no issues. 
We have cleaned out and checked the lift pump and cleaned the VST filters.
On which topic does anyone know where we can buy new VST filters!

There are no recorded faults in the last 35 hours, and the last event was "Code 91 Fuel pump open circuit at 196 hours"

Any experience of this?
Any suggestions gratefully received.

Regards from a sunny summer in Cornwall Uk







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Explorer
Glenlivet

Registered:
Posts: 52
Reply with quote  #2 
Quote:
Originally Posted by Explorer
Good morning All,
We have fitted a used engine to a different Explorer SPORTS 490 RIB and are testing props for best performance.
The engine is:

E90 DSLSEB Serial: 05235198 Build date 04/2008 at   235 hours.

We fitted this engine new to an Explorer SPORTS 575 RIB in 2008 which we have since repowered with an ETEC 130. 
While prop testing I am looking to achieve 5200 revs when light laden at about 45 mph.
The misfire occurs  - for brief periods of maybe 5 - 10 seconds - at any revs above 4800rpm. After that period the engine will run to 5100 revs for maybe 20 seconds and then misfire again.
What I find interesting is that I can usually, but not always,  trigger the misfire by touching the trim up or the trim down buttons.
I thus have checked all the electrics for chafing, and found no issues. 
We have cleaned out and checked the lift pump and cleaned the VST filters.
On which topic does anyone know where we can buy new VST filters!

There are no recorded faults in the last 35 hours, and the last event was "Code 91 Fuel pump open circuit at 196 hours"

Any experience of this?
Any suggestions gratefully received.

Regards from a sunny summer in Cornwall Uk







Can’t help with the misfire but I got my VST filter from Barnacle Bill’s, owner of this site.

Based on the not so sunny IOM!

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