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| Re: DOHC Front adapter plates |
Subject: Re: DOHC Front adapter plates
by D on 2020/1/11 2:52:50
Reubs,
The mazda thermostat is not on a good place thats for sure but the biggest problem is the guys
that dont keep the coolant fresh not really its commuter design. At over 6k rpm which is virtually
2% of the owners a good oil cooler, better capacity radiator and fresh coolant is plenty.
The remedy is simple in that you use a better custom head gasket that blocks the initial 2 cylinder
water passages from head to block bore sides that way the water goes into the front first cooling
the first 2 cylinders then flows over easier to the rear of the head, down the block and basically
does a U turn across the head and back under after hitting the rear etc.
Many folks have been concerned when water galleries are closed on later headgaskets on many engines
but the engineers eventually worked out this was the way to remedy cooling issues the cheapest way
and the most logical way. Using the back of the head works as well but is more complicated and only
usually suits big engine bays and FWD. We want to place the engine as far back towards the firewall.
Just in case dont forget VW pump for big v8s are cheaper for external units and easily can be
wired up to show when they fail. Cheap enough to keep a spare in the glove box as well!
https://www.ebay.com.au/itm/Engine-Aux ... 244abb:g:NhgAAOSwdvxeBA1P
Matt..
The factory A series pump is a massive unit to play with good luck!
another option was to grind a water passage from the from the front of the block
to the waterpump cavity and use a smaller common cheaper stand alone waterpump
like the one I posted earlier for the Mitsubishi/chrysler unit.
Real estate is limited so its quite a challenge. Looking forward to your ideas!
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