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Search: Posts Made By: lush
Showing results 1 to 25 of 43
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Forum: General Q & A
09-08-2023, 03:21 PM
Replies: 13
Views: 2,227
Posted By lush

https://cimg8.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg8.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/502_valve_59a06827888ff918d26911037226418f02713a85.jpg
I couldn't get a good picture and laying the valve on the table it didn't...
Forum: General Q & A
09-07-2023, 08:24 PM
Replies: 13
Views: 2,227
Posted By lush

Block was just cleaned up and make sure both deck...

Block was just cleaned up and make sure both deck heights were the same. I don't remember how much off the heads but not much and original heads. I put cam in straight up and mocked it up and...
Forum: General Q & A
09-07-2023, 07:50 PM
Replies: 13
Views: 2,227
Posted By lush

sorry i never seen the valves just going off the...

sorry i never seen the valves just going off the machinist.
Forum: General Q & A
09-07-2023, 07:49 PM
Replies: 13
Views: 2,227
Posted By lush

New inconel exhaust valves, new springs, roller...

New inconel exhaust valves, new springs, roller rockers, 500efi cam, heads resurfaced, seats ground, block line honed, torque plate honed, decked
Forum: General Q & A
09-07-2023, 06:15 PM
Replies: 13
Views: 2,227
Posted By lush

warped intake valves

502 mpi engine with only 45 hours since heads were redone but now everyone of the intake valves are warped. Any ideals what causes it? Machinist said they are the heavy duty valves.
Forum: General Q & A
09-11-2022, 09:33 PM
Replies: 22
Views: 6,746
Posted By lush

The mechanical pump is about two years old and i...

The mechanical pump is about two years old and i upgraded the suction line to 1/2" about a year and half ago. I didn't have time to do your test this weekend. Hopefully i can this coming weekend. ...
Forum: General Q & A
09-11-2022, 09:28 PM
Replies: 9
Views: 1,448
Posted By lush

I would test battery first. If that checks good...

I would test battery first. If that checks good i would get your volt meter out and start looking for your voltage drop. I assume Positive power goes from battery to starter to box on top of engine.
Forum: General Q & A
09-08-2022, 01:00 PM
Replies: 22
Views: 6,746
Posted By lush

I have the diacom software ( I had the mefi pro...

I have the diacom software ( I had the mefi pro but this is way better ) I have checked the lines more than once and put my vacuum pump on all three ports and it held vacuum but as a hell Mary i did...
Forum: General Q & A
09-08-2022, 08:51 AM
Replies: 22
Views: 6,746
Posted By lush

Sorry i meant i would lose about 10 psi off of...

Sorry i meant i would lose about 10 psi off of max pressure. I should have wrote down the exact #. I have checked the yellow line and the other line that dumps into the intake runner but never have...
Forum: General Q & A
09-07-2022, 08:30 PM
Replies: 22
Views: 6,746
Posted By lush

Its a 1994 502 mag mpi. 500 efi cam, TPIS...

Its a 1994 502 mag mpi. 500 efi cam, TPIS throttle body, stock heads, Cut down and belled out lower intake Re programed MEFI 1, adjustable fuel pressure regulator. Ignigtion stock, emi exhaust....
Forum: General Q & A
09-07-2022, 08:00 PM
Replies: 22
Views: 6,746
Posted By lush

I don't have a way to change the cranking...

I don't have a way to change the cranking injector pulse width. Some times it's around 7ms and other times it around 12ms. I wanted to know what makes it change. Every time i look at the ect it...
Forum: General Q & A
09-07-2022, 07:16 PM
Replies: 22
Views: 6,746
Posted By lush

Just seams strange that when i see the higher...

Just seams strange that when i see the higher cranking pulse width it don't want to start. But of course i don't always have the computer hooked up. I checked fuel pressure several times over the...
Forum: General Q & A
09-07-2022, 05:15 PM
Replies: 22
Views: 6,746
Posted By lush

I don't have my mercruiser book with me but it...

I don't have my mercruiser book with me but it said about 75 percent throttle and on my laptop key on engine off you can see the running injector pulse width climb until you get to about 3/4 throttle...
Forum: General Q & A
09-07-2022, 12:21 PM
Replies: 22
Views: 6,746
Posted By lush

I have no business trying to change tunes. I...

I have no business trying to change tunes. I mailed it to Ben Bowman and he did it for me. It worked great for a while and even now if it will start it still runs great. Is the barometer sensor...
Forum: General Q & A
09-07-2022, 12:16 PM
Replies: 22
Views: 6,746
Posted By lush

It acts like its flooded. I don't think i have...

It acts like its flooded. I don't think i have tried just cracking the throttle for a long time. usually i try low idle and if it don't go or starts and dies i go to 3/4 throttle where the...
Forum: General Q & A
09-07-2022, 10:10 AM
Replies: 22
Views: 6,746
Posted By lush

I could pull the distributer out and put a new...

I could pull the distributer out and put a new pickup in. But every time i have the computer hooked up it shows engine rpm when cranking.
Forum: General Q & A
09-06-2022, 07:48 PM
Replies: 22
Views: 6,746
Posted By lush

what controls cranking injector pulse width

On a MEFI 1 is there anything that controls the cranking injector pulse width besides TP sensor and coolant temp? When its around 7ms it fires right up but when its around 12ms it will not take off....
Forum: General Q & A
08-23-2022, 01:04 PM
Replies: 19
Views: 2,442
Posted By lush

I was just thinking about possible leaking...

I was just thinking about possible leaking injectors and when i shut it off Sunday it was only seconds before i tried to restart it with no luck. Could they leak that fast?
Forum: General Q & A
08-22-2022, 12:10 PM
Replies: 19
Views: 2,442
Posted By lush

Thats a good ideal. I tried that a week or two...

Thats a good ideal. I tried that a week or two ago but i only have a cheap scope without a side shooting camera. Maybe its time to upgrade :)
Forum: General Q & A
08-22-2022, 11:44 AM
Replies: 19
Views: 2,442
Posted By lush

Besides watching for rail pressure to drop is...

Besides watching for rail pressure to drop is there any other test besides pulling them out and finding a shop to test them?
Forum: General Q & A
08-22-2022, 11:14 AM
Replies: 19
Views: 2,442
Posted By lush

I didn't try the noid lights but the weekend...

I didn't try the noid lights but the weekend before i unpluged the fuel pump wire and when i cranked it at full throttle fuel pressure held but a low idle it would drop fast. I replaced the ign...
Forum: General Q & A
08-22-2022, 11:08 AM
Replies: 19
Views: 2,442
Posted By lush

Yes. about 35 with vacuum and 43 without.

Yes. about 35 with vacuum and 43 without.
Forum: General Q & A
08-22-2022, 10:33 AM
Replies: 19
Views: 2,442
Posted By lush

I can measure it for a new one this weekend but...

I can measure it for a new one this weekend but it ran about 69 mph yesterday parked on the trailer and would not restart and the vst tank was about 2/3 full.
Forum: General Q & A
08-22-2022, 10:03 AM
Replies: 19
Views: 2,442
Posted By lush

Used one of those inline spark checkers

Used one of those inline spark checkers
Forum: General Q & A
08-21-2022, 08:37 PM
Replies: 19
Views: 2,442
Posted By lush

Injectors were cleaned and tested at time of...

Injectors were cleaned and tested at time of rebuild. I never could see fuel in the sight line to throttle body and both vents on vst held vacuum but i replaced the float seat and diaphragm anyways...
Showing results 1 to 25 of 43
 
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