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Search took 0.00 seconds. Search: Posts Made By: mmwjr
Forum: Engines 04-14-2014, 11:39 AM
Replies: 35
Views: 6,966
Posted By mmwjr
Well if the t-stat housing is from Orca It is...

Well if the t-stat housing is from Orca It is probably ok and may have a passage that you just don't see or some t-stats have a pin hole or 2 that allow some water to pass.
Forum: Engines 04-13-2014, 11:08 AM
Replies: 35
Views: 6,966
Posted By mmwjr
Is the thermostat housing the Merc OEM (open...

Is the thermostat housing the Merc OEM (open system) or is it one supplied by ORCA for the closed cooling? Some system use a bypass hose that comes off the top of the intake manifold and connects to...
Forum: Engines 04-01-2014, 09:41 PM
Replies: 35
Views: 6,966
Posted By mmwjr
They should not charge you for their error. Make...

They should not charge you for their error. Make sure you are using marine head gaskets and not automotive as they have copper in them.
Forum: Engines 04-01-2014, 12:01 PM
Replies: 35
Views: 6,966
Posted By mmwjr
I hear you. Only 1 valve wrong should have stood...

I hear you. Only 1 valve wrong should have stood out but this long winter has gotten to us all.

BTY if you had already torqued the head bolts the gasket needs to be replaced.
Forum: Engines 12-29-2013, 06:14 PM
Replies: 35
Views: 6,966
Posted By mmwjr
Fippe looks nice painted however you got paint on...

Fippe looks nice painted however you got paint on the bolt threads and it looks in the threads of th intake for the distributor hold down.
I recommend cleaning these up with a tap (intake threads)...
Forum: Engines 12-23-2013, 01:29 PM
Replies: 35
Views: 6,966
Posted By mmwjr
I agree with doing both heads. This allows you to...

I agree with doing both heads. This allows you to have fresh heads and new gaskets since you are already torn down this far.
When do you plan to reassemble? Post pictures as you do so.
Forum: Engines 12-23-2013, 12:35 PM
Replies: 35
Views: 6,966
Posted By mmwjr
agree that 10% difference is the correct target,...

agree that 10% difference is the correct target, however 163 and 165 are very good numbers.I would question the validity of the higher numbers.

Did you pull both heads?
Forum: Engines 12-23-2013, 12:26 PM
Replies: 35
Views: 6,966
Posted By mmwjr
Yp that's because 1 cylinder is trying to...

Yp that's because 1 cylinder is trying to compress but blows into the adjacent which has a valve open and the pressure blows out through there. I don't expect any issues from this.
Forum: Engines 12-23-2013, 11:58 AM
Replies: 35
Views: 6,966
Posted By mmwjr
So other than 3 and 5 the rest of the engine is...

So other than 3 and 5 the rest of the engine is healthy. 3 and 5 are adjacent cylinder and you said the gasket was blown between them.

I think you will have a good engine once put back together.
Forum: Engines 12-23-2013, 11:20 AM
Replies: 35
Views: 6,966
Posted By mmwjr
What were the compression measurements from each...

What were the compression measurements from each cylinder? A healthy engine should get between 150 - 160 ft pounds or ~ 200 - 220 N m.
Forum: Engines 12-22-2013, 10:34 PM
Replies: 35
Views: 6,966
Posted By mmwjr
Hey Fippe, got any pictures to post of the...

Hey Fippe, got any pictures to post of the project. Several folks have gone through a similar issues this year, except open cooling system. All recovered after fixing heads and reassembling.

As...
Forum: Engines 12-22-2013, 09:20 PM
Replies: 35
Views: 6,966
Posted By mmwjr
Good you're on the right track. Question:...

Good you're on the right track.

Question: does the system have a coolant recovery bottle (overflow bottle)? Just like your car does.

If not every time you run the engine some coolant will be...
Forum: Engines 12-22-2013, 05:39 PM
Replies: 35
Views: 6,966
Posted By mmwjr
Is the thin rust only in the water passages? Not...

Is the thin rust only in the water passages? Not around the valves? Have the heads inspected for cracks before reassemble.

Inspect the exhaust manifolds and risers as well for rust. These are also...
Forum: Engines 12-22-2013, 01:54 PM
Replies: 35
Views: 6,966
Posted By mmwjr
Ok, you did not mention this in the origional...

Ok, you did not mention this in the origional post.

So right now the engine is apart to replace had gasket, correct?
Who installed the orca sytem? Did it ever run correct? What is the part...
Forum: Engines 12-22-2013, 11:42 AM
Replies: 35
Views: 6,966
Posted By mmwjr
Fippe welcome aboard. From what you have...

Fippe welcome aboard.

From what you have described I bet the engine was always running hot. With a closed cooling system that is low on coolant it is common that air collects around the higher...
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