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Search took 0.00 seconds. Search: Posts Made By: mmwjr
Forum: Engines 03-25-2021, 12:12 PM
Replies: 55
Views: 6,317
Posted By mmwjr
Ah exhaust manifold, I was thinking you meant...

Ah exhaust manifold, I was thinking you meant intake manifold.
Forum: Engines 03-25-2021, 01:13 AM
Replies: 55
Views: 6,317
Posted By mmwjr
Glad the problems resolved but I’m not sure how...

Glad the problems resolved but I’m not sure how water from a cracked intake would get into all those cylinders as the only water passage is at the front of the intake that transfers coolant from the...
Forum: Engines 10-08-2019, 03:50 PM
Replies: 55
Views: 6,317
Posted By mmwjr
Anti-siphon valve.

Anti-siphon valve.
Forum: Engines 10-07-2019, 04:40 PM
Replies: 55
Views: 6,317
Posted By mmwjr
The IAC only increases the idle rpm when the...

The IAC only increases the idle rpm when the engine is not up to operating temp. therefore should nothing to do with upper rpm performance.
Forum: Engines 10-04-2019, 11:04 AM
Replies: 55
Views: 6,317
Posted By mmwjr
If the drive was not filled probably and had an...

If the drive was not filled probably and had an air pocket and the reservoir was then topped off the air will eventually makes its way up into the reservoir and can cause lube to be expelled out the...
Forum: Engines 10-03-2019, 02:01 AM
Replies: 55
Views: 6,317
Posted By mmwjr
Based on max rpm I’m assuming the boat got on...

Based on max rpm I’m assuming the boat got on plane with just you. It would be interesting to repeat this test but with passengers on board and not being able to plane.
Forum: Engines 09-28-2019, 12:29 PM
Replies: 55
Views: 6,317
Posted By mmwjr
The only thing that stands out to me is the...

The only thing that stands out to me is the timing advance which for old school (carb) would have a base timing of 8*. Yours is showing -0.75*.

Would be interested to see if it increases with...
Forum: Engines 09-01-2019, 11:41 AM
Replies: 55
Views: 6,317
Posted By mmwjr
What wS the result of the compression test and...

What wS the result of the compression test and did you perform a leak down test as well?
Forum: Engines 09-01-2019, 01:17 AM
Replies: 55
Views: 6,317
Posted By mmwjr
Increasing pitch will result in lower rpm and top...

Increasing pitch will result in lower rpm and top speed. You need to decrease pitch. Don’t recall what drive you have.
Forum: Engines 08-25-2019, 09:32 PM
Replies: 55
Views: 6,317
Posted By mmwjr
Not sure how vessel view works so I would call...

Not sure how vessel view works so I would call mercruiser and tell them what you are seeing as it seems like it’s saying no readings from a starboard engine
Forum: Engines 08-25-2019, 05:06 PM
Replies: 55
Views: 6,317
Posted By mmwjr
You only have a single engine, correct? There is...

You only have a single engine, correct? There is no starboard or port engine, so my guess is the system is not program correctly for a single engine.
Forum: Engines 07-25-2019, 04:07 PM
Replies: 55
Views: 6,317
Posted By mmwjr
Unfortunately my work computer won't let me see...

Unfortunately my work computer won't let me see the pictures but it sounds like it's time for a complete tune up from what the others have said.
Forum: Engines 07-23-2019, 11:35 AM
Replies: 55
Views: 6,317
Posted By mmwjr
Since the boat was not used much and therefore...

Since the boat was not used much and therefore probably not maintained well I would first address the old fuel. A quick check is to run on a portable tank with fresh gas, if this resolves the issue...
Forum: Engines 07-23-2019, 12:53 AM
Replies: 55
Views: 6,317
Posted By mmwjr
#24 for the engine and #11 for the drive. Both...

#24 for the engine and #11 for the drive. Both can be found under Documents of this site.
Forum: Engines 07-22-2019, 04:44 PM
Replies: 55
Views: 6,317
Posted By mmwjr
Yes marine growth can greatly impact performance....

Yes marine growth can greatly impact performance. The growth will put a load on the engine limiting rpm.
Forum: Engines 07-22-2019, 04:26 PM
Replies: 55
Views: 6,317
Posted By mmwjr
Welcome aboard Has the boat been stored in...

Welcome aboard

Has the boat been stored in the water? If so the bottom may have marine growth.

I'm assuming it has a Bravo 3 drive; have you looked at the props for damage?
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