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    383 conversion, outdrive concern.

    I hear to look out for the block cranckshaft grinding clearance. Is there any truth to that?
  2. G

    383 conversion, outdrive concern.

    Guys i am steps away from sending the 5.7 to be reworked and turned into a 383. I have question if the outdrive will sustain the new torque. My current outdrive is a DP-SM. Attached is the pic of the drive number. And another question would be how to determine if the 5.7 was really converted to...
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    Taking suggestions 5.7 Vortec

    Update, plug wire cracked at boot in dizzy. Wires and dizzy replaced. Now off to the clacking rockers.
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    Taking suggestions 5.7 Vortec

    Reman. On another note i placed my hand on the dizzy as i was trying to turn it and with all wires on and tight it gave me a hell of buzz.
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    Taking suggestions 5.7 Vortec

    On the second vid towards the end you can hear a rattle come into play. Will try and record a better one.
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    Taking suggestions 5.7 Vortec

    Noise present when belt is off
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    Taking suggestions 5.7 Vortec

    Here are 2 vids of the two noises that i came about. The 1st one just recently developed as i was testing it sounds like small tick. The pulley noise is because of being wet that later went away. The later one is when load is applied. Scratching my head.
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    Taking suggestions 5.7 Vortec

    Thanks scott, will check the plugs tomorrow to get a better idea. will try to record the noise and post back.
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    Taking suggestions 5.7 Vortec

    Yes, new manifolds and risers installed. The boat was purchased with a locked 5.0 and swapped over to a 350. This engine was has a tempestous story. This is the 2nd time out of the boat. This time is because the oil leak but noticed the corrosion on the outside of the new head and was looking...
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    Taking suggestions 5.7 Vortec

    Guys here is my dilema. New engine 5.7 vortec carb, block 880 casting with less than 10 hours was taken out of boat due to leaking oil pan gasket by the timing chain cover. Engine has a noise under load that comes and goes, not yet determined where. Long story short. Rust signs where detected of...
  11. G

    Overheating under load

    Well now we have either piston slap or rod knock in the mix. Working with the mechanic to determine a noise under load. Imagine that, a brand new engine with less than 5 hours.
  12. G

    Overheating under load

    I dont have closed cooling. Outdrive draws from the sea (raw). I will then order a 140 and recheck. Will still investigate further into the heating up issue and provide update.
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    Overheating under load

    Update.....changed a couple of things but have not taken the boat to the water yet due to a large oil leak between timing cover and oil pan recently discovered. I did test it with muffs and so far so good, temp stays at 160. I did notice that the temp climbed if i raised the rpms but slowly...
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    Overheating under load

    Found a piece inside circ pump. Checked inside stat housing and nothing there. Also checked hoses to manifolds and nothing there. Port riser and manifold seem to heat up more that the starboard even though both risers and manifolds are new. This is a reman motor running perfect other than the...
  15. G

    Overheating under load

    Correct i had a fin from an old impeller that i replaced that i am still looking for it. I took apart the water pump impeller and hose and no success.
  16. G

    Overheating under load

    Yes that is correct. Number 28 on the drawing. I found it crushed and broken. I still replaced it but had that concern regarding overheating under load. I also went ahead and replaced 25, 23, 24 and 27 on diagram.
  17. G

    Overheating under load

    Guys i have a question regarding a broken seal on the TSK SX-M water intake tube. I kept overheating under load and decided to go ahead and replace manifolds and risers due to age. After replacement still overheating under load. I checked impeller which was new and still in good shape. Circ pump...
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    Overheating at 30mph

    Last i checked upon install it was in good condition. I ordered one just to have peace of mind.
  19. G

    Overheating at 30mph

    Engine is raw water cooled. I backflushed from water pump incoming water hose. I opened the cleanout on the outdrive and nothing came out prior to this event. Engine 5.7 dp-sm
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    Overheating at 30mph

    The new impeller has been ordered since its cheap insurance i rather just knock it out. Then while there, review all hoses and hose clamps. Who knows, i might get lucky with it and ends up beign a loose hose.
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