Recent content by pennyduke

I had this same noise with my Mercruiser 5.0L. This is the new 383 during break in. I hear the same rattling noise. THE OUTDRIVE IS NOT ATTACHED. Any thoughts?

Tried to fire up my new 383 today in my 93 Bayliner but I don't have any spark. I replaced the coil with a new Mercruiser coil and still nothing. I don't have the outdrive attached but other than that the only thing added was an electric fuel pump and safety switch. I do have the kill switch on...

Tried to fire up my new 383 today in my 93 Bayliner but I don't have any spark. I replaced the coil with a new Mercruiser coil and still nothing. I don't have the outdrive attached but other than that the only thing added was an electric fuel pump and safety switch. I do have the kill switch on...

COM 12-417-8 Comp Cams XM270HR Camshaft .495/.503, 218/226@.050, 112 LSA, With this cam, Can I use a stock distributor off a 5.0L Merc engine on my 383 without changing the gear?

I'm doing a 350 Stroker to a 383 using a 94 block .030 over and 96 Vortec 64cc heads. I'm trying to find a balanced Scat rotating assembly with 5.7 rods that will get me at or near 9:1 cr. I have been using Gregs thread as a go by and noticed that he used 23cc d dished pistons. But I can't find...

Can anyone tell me what this noise is? http://s175.photobucket.com/albums/w121/dflynn1136/?action=view&current=IMG_0897.mp4

The Machine Shop said my 1996 5.7 vortec block had a very bad spun main bearing. They recomended that I find another block for my Stroker rebuild. My question is should I find a pre 1996 block to work with so I dont have to worry about the electric fuel pump conversion? Also will any 1 peice...

305 Mercruiser. Just replaced the distributer (TB IV) and ignition Module and the Timing mark is jumping all over. I have turned the dizzy slowly and tried to get it to stop at 8 Deg before but it keeps jumping past zero. Anybody know whats wrong? Thanks

1996 Mercruiser 5.7L I/O. I just noticed that my main ground wire from the battery and 5 other small Ground wires are grounded to the Bell Housing and not the block. I do believe that the bolt goes through to the block. Does anyone see a problem with this? My gauges do jump a little more than I...

It is now time to send my 1996 5.7L vortec to the Machine shop for a Rebuild. It is from my 1996 Suburban and replacing my very tired 1993 5.0l mercruiser.They are going to bore it .030 over and and align the crank among other things. I have a shop that wants to sell me a engine kit that will...

I have a 1996 5.7l Vortec engine I pulled from my Suburban 1500 with a spun bearing. Will the heads from this truck motor fit on my 1993 Mercruiser 5.0L motor to try to increase HP. I also wanted to thank everyone for all the help at the begining of summer. My boat ran great after all your...

I have a 1993 mercruiser MCM 5.0L serial 0f002209. My drive is a Gen 2 serial number od899770. I want to install new NGK plugs and I get 2 different numbers when I look them up. Can anyone tell me the correct plug number. Thanks

I have a 1993 mercruiser MCM 5.0L serial 0f002209. My drive is a Gen 2 serial number od899770. My mercarb 2 Barrel #1389-9670 calls for 1.65mm jets. Can I increase the jet size to get more power. If so, How much bigger can I go ? Thanks

I have a 1993 mercruiser MCM 5.0L serial 0f002209. My drive is a Gen 2 serial number od899770. I'm still having trouble with getting WOT rpms. I'm getting 3850 rpms at 26 mph by gps after changing to the correct Ignition Module. I removed the Anti siphon Valve and checked to make sure the...

I have a 1993 mercruiser MCM 5.0L serial 0f002209. My drive is a Gen 2 serial number od899770. My lower shift cable and bellows were replaced last summer by me and the shifter never seemed quite right after adjustment by the manual. I tried to do the adjustment again today and think I made it...