Which MSD distributor, locked or not?
#1
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Which MSD distributor, locked or not?
It has been recommended to lock my distributor. Motor is a Whippled 540. Discovered my current MSD is rusted beyond cleaning. MSD's web site lists a locked out distributor, http://www.msdignition.com/dist_8.htm , but don't know if marine standard. Or should I go with the 83606?
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#4
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Re: Which MSD distributor, locked or not?
I think we would all agree that weights and springs are no good in a marine environment.
So after locking the distributor, how will the timing advance be control?
Is their an electronic module to be added?
Or do you not need timing advance control on this engine?
So after locking the distributor, how will the timing advance be control?
Is their an electronic module to be added?
Or do you not need timing advance control on this engine?
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Patrick
Patrick
#5
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Re: Which MSD distributor, locked or not?
Originally Posted by Pat McPherson
I think we would all agree that weights and springs are no good in a marine environment.
So after locking the distributor, how will the timing advance be control?
Is their an electronic module to be added?
Or do you not need timing advance control on this engine?
So after locking the distributor, how will the timing advance be control?
Is their an electronic module to be added?
Or do you not need timing advance control on this engine?
#6
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Re: Which MSD distributor, locked or not?
MSD now charges $97 to rebuild their dist. I just had 2 rebuild by them and they are for sale...they are locked
http://www.offshoreonly.com/esvon/page-11676.html
http://www.offshoreonly.com/esvon/page-11676.html
#7
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Re: Which MSD distributor, locked or not?
Originally Posted by Pat McPherson
I think we would all agree that weights and springs are no good in a marine environment.
So after locking the distributor, how will the timing advance be control?
Is their an electronic module to be added?
Or do you not need timing advance control on this engine?
So after locking the distributor, how will the timing advance be control?
Is their an electronic module to be added?
Or do you not need timing advance control on this engine?
#8
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Re: Which MSD distributor, locked or not?
Stock engines or engines with small perfomance cams do not run well with locked out timing. They can build too much cylinder pressure at lower rpms, leading to detonation. Engines with larger cams tend to bleed off compression at lower rpms which keeps the cylinder pressure under control. No advance is needed for these. Just set the initial timing at 34 and forget it.
Last edited by PatriYacht; 08-17-2006 at 07:21 AM.
#9
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Re: Which MSD distributor, locked or not?
PE,
You are getting some good info here.
I don't think your engine has a cam with enough overlap to bleed cylinder pressure like PY has described.
I think you should have some sort of advance curve for spark timing.
Something like what a Merc 525SC has, 15? or so...
Did you find out if your MSD box controls timing or just multiple spark?
You are getting some good info here.
I don't think your engine has a cam with enough overlap to bleed cylinder pressure like PY has described.
I think you should have some sort of advance curve for spark timing.
Something like what a Merc 525SC has, 15? or so...
Did you find out if your MSD box controls timing or just multiple spark?
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Patrick
Patrick