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-   -   circ pump or crossover's (https://www.offshoreonly.com/forums/general-q/180452-circ-pump-crossovers.html)

Thunderstruck 02-23-2008 06:31 AM

BTW ran the supplied crossover on my old procharged 502EFI and did fine. No issues.

cougarman 02-23-2008 08:32 AM


Originally Posted by ROTAX454 (Post 2456527)
I have choosen to stay with a recir pump setup on my motor builds. I will use the Meziere billet mechnical pump. CAUTION: If you stay with the timing chain, your timing cover will fit OK. BUT, if you chose to use the Jesel belt, the belt pulley has a clearance issue with the pump. I had to use the pump spacers from CV Products. I had them machined for O-ring sealing. Pic shows the pump install before the Jesel belt drive was installed.



Meziere, also sell's the spacer's already machined for an O-ring :D Your engine is looking nice!

Jon

ROTAX454 02-25-2008 05:28 PM


Originally Posted by cougarman (Post 2456795)
Meziere, also sell's the spacer's already machined for an O-ring :D Your engine is looking nice!
Jon

Thanks Jon. Yes, Meziere does sell the spacers. But, correct me if I am wrong. The shortest spacer Meziere sells is the .500? CV makes a .375 I believe.

martins custom marin 02-25-2008 06:08 PM

IM currently chasing issues with the crossover on my engine, with the bypass from the crossover to the thermostat housing installed the stat will not open so I went to flow restrictors but the temp will only get to 130. then you need to worry about how much raw water pressure your system is generating. my advice is to stay with the circ pump, the crossover has too many issues compared to the benifits.

cougarman 02-25-2008 06:09 PM


Originally Posted by ROTAX454 (Post 2459532)
Thanks Jon. Yes, Meziere does sell the spacers. But, correct me if I am wrong. The shortest spacer Meziere sells is the .500? CV makes a .375 I believe.


I think you may be right, and then .900 is the next size.

Jon


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