water passages in heads 91 175 xri/efi

jpen123

Seaman
Joined
Jul 17, 2004
Messages
54
How big are the water passages on a 91 175 xri/efi motor. How easy can they become clogged
 

andy6374

Lieutenant Commander
Joined
Aug 4, 2005
Messages
1,617
Re: water passages in heads 91 175 xri/efi

What makes you think they are clogged? Are you overheating? There are other possibilities.
 

jpen123

Seaman
Joined
Jul 17, 2004
Messages
54
Re: water passages in heads 91 175 xri/efi

Overheating at various times like at wide open throttle and trimmed out or when towing someone tubing and making turns while accelerating fast.
 
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