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    Delco part number(s)

    Sorry if this is in the wrong section but I have been trying to find some Delco part numbers with no luck. I called Delco from the number on theyre site and the guy told me that Delco stopped making marine parts and that anyone with Delco marine parts for sale is selling old stock. I dont...
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    Changed plugs. Old ones looked ok now new ones look lean.

    I took the Autolite plugs out of my engine and put NGK plugs in. BR6FS which members here said was what to put in so Im sure theyre the right plug. The Autolites looked normal when I took them out. Not rich and not lean. I only have about 10 hours on the new plugs and today I took one out to...
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    How to trace down this problem.

    I barely ever run at night but the two times recently I have run at night I have noticed this problem. Everything I turn on electrically makes my V gauge go down noticeably. If I turn the NAV lights, and guauge lights on my V gauge goes from 14-15 to 12. If I use my trim then it drops to...
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    Do flappers on a thru hull exhaust really keep the water out?

    I have a 25ft Donzi with a 5.7 OMC Cobra with thru prop exhaust. I am thinkng about installing some sort of thru hull exhaust this winter. I have the center style straight back riser, and I have a swim deck. I have saw boats that have the thru hull in kinda the same setup as me. I am gonna...
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    Spark plugs this marine store sold me.

    When I bought my new engine (5.7 OMC) a couple months ago it came with autolite 25 plugs. I have been wanting to change them out to NGK plugs but when I go to NGK's site it shows that I need they're UR4 plug. I havent been able to find these anywhere locally so I have to order them and I...
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    Spark plug wire routing?

    I got my OEM OMC manual today. Its day and night to the crappy Seloc one. I was just looking through it when I saw some charts for trouble shooting problems. One has a part that says Engine vibrations and noises ---IGN ---Improper spark plug wire routing. Maybe its in here but I havent...
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    Where are the most likely places for a 5.7 to leak engine oil?

    I have a new 5.7 engine. It has about 50 hours on it. The old engine was leaking oil and got the bilge pretty nasty. i cleaned some of it up but not anywhere close to all of it. If there is just a little bit of water in the bilge I dont see any oil in the water. But if the bilge gets a inch...
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    So do Cobra's have a trim limit or not?

    I could have swore I read on here a couple times that cobra's do not have trim limit and only a sender. Well today I decided to see what my trim sender looked like or if it was even still hooked up as my gauge is pegged up all the time. (it twitches when I use the trim). I took the trim...
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    Is an 88 Cobra drive a stringer or 800? Is it an electric shift? Lube?

    So what is it? From looking in the manual the model number is in there as an 88. But what dies that make it? Stringer, 400, 800? And which ones were electric shift? I read on the back of a gear lube bottle not to use it on electric shift OMC drives. Is quicksilver 90W good to use in this...
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    Damage from crap wrapped around prop?

    I was comin back in today after going out on the boat. On the way back in I was idling through the inlet to my dock and I felt a hesitation. It felt like if you were to drag bottom for just a split second. I was only about 1000 ft from my dock. When I got to the dock I shut the engine off...
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    Is the RPM gauge being off an engine thing or a wiring thing?

    I bought a brand new RPM gauge about a month and a half ago and when I have my digital timing light hooked up I can see that the gauge is way off. At idle the gauge shows 1K RPM but the tach gun (digital timing light) shows 650. And it just gets worse from there up. The gauge is brand new...
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    How tall are you guys biminis?

    I have a 25 ft Donzi. I bought a bimini from a marine store and on there size chart they ahvbe that all of theyre biminis are 48" tall. Well I didnt think anything of it but when I got it it is wayyyyyy too tall. I tried shortning it with the adjustments on it but its impossible, Im gonna...
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    What's the best stiff to use to fill fiberglass holes?

    I'm wondering what the best stuff would be to use to fill fiberglass holes like screw holes and maybe some bigger holes about the size of a quarter? Would resin and hardener be the best to use on the screw holes? Is there some kind of fiberglass filler that is strong that I could use? Kinda...
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    Can I install temp and oil warning buzzers?

    I have a new omc 5.7 engine and the old engine did not have any warning buzzers/alarms. Can I install some? Temp and oil pressure is what I'm wanting. What parts do I need? Thanks
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    Might have it figured out.....again. Resistor wire.

    Well as you guys may know I have been having some problems with my new engine. At first I was just having a problem with bogging at over 4K RPM. Then I was having a problem where only sometimes it would bogg at 3K RPM and not want to go over 3K RPM and it would backfire. These problems were...
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    What do you guys think about this Cobra out drive plan for the winter?

    I have a 5.7 OMC with a Cobra drive but i have found out that the drive is the model for the 5.0. It has the 1.4:1 gears instead of the 1.5:1 The drive seems to be in pretty good condition. i never hear any weird noises or grinding. I changed the drive lube and didn't see any water but I...
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    carb condensates really bad

    Didn't want to steal FillupD's thread about his air cleaner condensation but I have been wondering about the same thing but on my carb which is an Edelbrock 1409. It always condensates really bad on the outside of the carb. But I noticed when I was looking down the throat of the carb while...
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    6 hours on brand new prop and spun hub/white haze?

    I got a brand new SS prop last week. When I went to put it on it wouldnt fit and when I brought it back to the prop place they looked at it and said the hub was not in all the way. They put a new hub in it for me. There was a sticker on the prop when I picked it up that said to let it sit for...
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    Quick question. Can I mount electric fuel pump before fuel/water sep filter?

    Think I might be having a fuel pump issue. See http://forums.iboats.com/showthread.php?t=432099 I am only getting 3.5 PSI at idle through WOT. I have been reading that electric fuel pumps are not good at pulling fuel. They are good at pushing fuel. Can I mount my electric fuel pump before...
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    Engine acting up again today. Thought I had it figured out,My fuel pump test VIDEO

    I thought I had all this figured out. I was having problems with the engine bogging bad in the last 1/3 of the throttle. Then sometimes it would start backfiring at over 2500 RPMs and not want to go over 3K RPM. I did a tune up on the dist, replaced the IGN coil, took the air horn off the...
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