Engine Swap and breather

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Engine Swap and breather

Postby Corn22 » Tue Sep 20, 2016 10:12 am

A few question hopefully you can help me with.

I have a silver seal engine from the 1980's that had little use before being removed from a car, it has good compression and has been turned regularly with diesel oil in the bores. Now before putting it in my car is there anything I should do to it, changing seals etc? I do plan to put a new water pump, thermostat, heater valve on it.

Also it has the breather on the engine block but there is no breather on the rocker cover or on the oil filler like other engines I have. Should I change the rocker cover to one with a breather on it?

Thanks
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Re: Engine Swap and breather

Postby Panky » Tue Sep 20, 2016 5:00 pm

Is it the breather with the 'can'? If it is then just connect it to the vacuum port on the carb - if the engine is OK, and not breathing heavy, that should be sufficient. If it's just the down pipe then an extra rocker cover breather wont do any harm. Do you know why the engine was laid up, might be wise to take the head off and take a peek inside just to make sure all is good.
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Re: Engine Swap and breather

Postby Corn22 » Tue Sep 20, 2016 5:37 pm

No can, the engine was laid up while they started welding on the car but never finished. The engine and interior were kept inside and looked after but the car was left outside to rot, such a shame as they had fitted new floors.
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Re: Engine Swap and breather

Postby Corn22 » Tue Sep 20, 2016 5:48 pm

If I take the head off do I need to replace the head gasket? Not done anything with engines before
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Re: Engine Swap and breather

Postby Panky » Tue Sep 20, 2016 5:52 pm

Yes, not expensive. You will need a head set anyway for all the other gaskets.
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Re: Engine Swap and breather

Postby Corn22 » Tue Sep 20, 2016 6:00 pm

Are the copper gaskets the best one's? What other gaskets do I need to change when taking the head off? I don't really want to take the engine completely to bits as I'll never get it back together .
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Re: Engine Swap and breather

Postby Panky » Tue Sep 20, 2016 7:43 pm

Copper yes definitely. You will also need gaskets for the water pump,thermostat housing, manifolds and carb - everything you need will be in a head set rather than buying them seperately.
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Re: Engine Swap and breather

Postby Corn22 » Fri Sep 30, 2016 2:08 pm

So if a put a starter motor on it and spin it for a compression test, what sort of reading should I get on a cold bare engine? Thanks
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Re: Engine Swap and breather

Postby Panky » Fri Sep 30, 2016 4:12 pm

Should be around 160 psi, hopefully nice and even across all cylinders.
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Re: Engine Swap and breather

Postby Corn22 » Fri Sep 30, 2016 4:38 pm

Panky wrote:Should be around 160 psi, hopefully nice and even across all cylinders.

Hmm thought it would be a lot less than that on a cold engine as I am only getting 75
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Re: Engine Swap and breather

Postby Panky » Fri Sep 30, 2016 4:45 pm

It should be measured hot but that's still very low, try a few squirts of oil down the bores and see what you get then. Is this a spare engine? if it's been laying around for a while the valves could be a bit sticky or the rings gummed up
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Re: Engine Swap and breather

Postby Corn22 » Fri Sep 30, 2016 4:48 pm

Panky wrote:It should be measured hot but that's still very low, try a few squirts of oil down the bores and see what you get then

The engine is on the floor and has oil down the bores. Nothing is connected to it The pressures are all fairly even. The engine number starts RKM1121E which I assume is due to it being a silver seal one.

If I get a chance I may just stick it in and see if I can get it running
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Re: Engine Swap and breather

Postby Panky » Fri Sep 30, 2016 4:51 pm

What gauge are you using, there are some dodgy ones on the market :( Maybe try it on the engine in your car just to see what you get
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Re: Engine Swap and breather

Postby Corn22 » Fri Sep 30, 2016 4:56 pm

Panky wrote:What gauge are you using, there are some dodgy ones on the market :( Maybe try it on the engine in your car just to see what you get

One off eBay :roll:
I'll try it on the one in my car in the next couple of days
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Re: Engine Swap and breather

Postby Panky » Fri Sep 30, 2016 5:34 pm

I've heard of a few suspect ones off ebay :( The fact you've got a nice even measurement across all four pots makes me suspect the gauge
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