[C38] Compression relief on Universal Diesel M30/5424

[Tom T.]

Hello Russ,

I've never seen a 38 with the compression release connected.  I guess it was intended as an owner upgrade.

If your engine throttle cable ever broke or was damaged so you couldn't bring the fuel to idle, you could have serious problems.  Things like that only happen when docking, etc.

One other reason for the compression relief is if the engine is ever cranked with excessive fuel or oil in the manifold from an overhaul, etc., the engine could over rev quickly if there was no way to either cut off the air to the throttle body or by releasing the compression.  Some mechanics use a rag to gag the air intake but I've seen rags swallowed and the engine kept running.

If you do intend to use the compression relief for cranking and not as an emergency shutoff, try letting the engine spin and then releasing the compression relief to get a good cranking speed from a weak battery or failing starter.  This method is especially good on a cold engine where cranking is more difficult anyway.

Tom Troncalli
The Renata


----- Original Message ----- 
From: Russ and Karleen Duff 
To: listserve at catalina38.org
Sent: 2/13/2008 6:01:05 PM 
Subject: [C38] Compression relief on Universal Diesel M30/5424


Do any of you use the compression relief?  Mine isn't hooked up, and there is also no where for it to hook to.  I thought it may be handy for those times where the battery is a little low.  If any of you do use it, where did you run the cable and install the knob?  Thanks.
 
Russ Duff
Hull # 112
Avantura
Lake Erie
 
 
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