Search results

  1. 76SeaRay

    Triangle Coupler Question

    I have the triangle coupler shown in the picture on a 1996 GM 5.7L with 14 inch flywheel with an Alpha One drive. I am test fitting the engine with the Alpha One Gimbal Housing and Inner Transom plate in place. The tip of the coupler appears to be about 1 inch from the front end of the gimbal...
  2. 76SeaRay

    Transom Rear Engine Bolts and Mounting Alpha One Gen One

    Ok, ran to the store and picked up 1/2 inch flat washers 1/8 inch thick. Took a guess that the gap is 1/4 inch and went with 2 flat washers top of the inner transom plate motor mounts and dropped a 1/2 inch bolt through to hold it in place. Adjusted height of the front motor mounts with my...
  3. 76SeaRay

    Transom Rear Engine Bolts and Mounting Alpha One Gen One

    I have seen an exploded view of parts for the rear engine mounting bolts from the bell housing to the inner transom plate. There appears to be a Design I and Design II. Can someone explain the differences? Also, is there a drawing that shows the correct stack up of the springs, felt pads and...
  4. 76SeaRay

    Engine Sensor Questions - 1996 5.7L Vortec

    Engine is a scratch built but pretty much a stock 1996 Chev 5.7L Vortec with the Xtreme Marine roller cam and roller tip rockers (yes, it is marinized). I currently have a marine Rochester QJet carb. So, getting ready to light this engine off on a run stand and need to get the appropriate...
  5. 76SeaRay

    Support Backing during cure for Fiberglass Patch

    As the old saying goes, make sure you know what is behind the hole you are cutting. The previous owner decided to cut speaker holes in the dash just behind the windshield frame. Fortunately, the guy apparently realized what he was doing after cutting into the member a little bit. He stopped...
  6. 76SeaRay

    Dual Plane Intake and Carb Base Plates/Gaskets

    I haven't found a discussion on the correct gaskets to use when running a dual plane intake with a 4 barrel. So, here goes a thread on the issue: Both Holley and Rochester (QJet) have gaskets that use individual holes for the 2 primaries and 2 secondaries (4 total). There are also gaskets...
  7. 76SeaRay

    Marine Quadrajet Overflow

    I have been checking the carb I have which is a newly rebuilt Rochester Quadrajet to make sure it is a marine carb. I can see the seals around the shafts but after reading about the overflow, it does not have a J Tube for float overflow back to the carb. I researched getting a J Tube but no one...
  8. 76SeaRay

    Valve Adjustment on 5.7L Vortec

    Ok, so read all the threads about 3/4 versus 1 turn past zero lash. However, from what I found from Comp Cams, they say to 1/8 to 1/4 if the engine spends its time at high RPM and 1/4 to 1/2 turn for average "street driving". I am guessing their reference to the street would be applicable for...
  9. 76SeaRay

    Bolt Types

    It appears that the transom plate bolts and studs are cad plated steel with stainless steel used on the exhaust bull horns. Can anyone confirm that? I need hardware in other locations like motor mount bolts so need to decide what type to get that aren't as susceptable to corrosion. I don't...
  10. 76SeaRay

    Exhaust Riser Questions

    So, I have a few of questions on exhaust risers came up while researching info on them a bit: 1) I see where there are various riser heights and spacers. Are these only to adjust the height of the exhaust exit or do they have some other effect such as related to additional cooling? 2) I ran...
  11. 76SeaRay

    Osco Exhaust Manifolds Identification

    I have a set of manifolds and risers that are supposed to fit my 1996 Mercruiser 5.7L engine. I haven't been able to find these on the internet and would need to know what gaskets etc to get for them. They both have the Osco logo cast into them. Here is how they are marked: Manifolds --...
  12. 76SeaRay

    Invalid Server Response Message

    Is it just me or are other people getting this message??? When I post I get this message about an "invalid server response, please try again".. I have to repeatedly try to post and refresh my screen to get it to go through.. It sometimes cuts off part of the post at the end of the message...
  13. 76SeaRay

    Self Adhesive Vinyl Dash Trim

    Does anyone know of a source for self adhesive thin vinyl that would work well on the "dash" over a smooth gelcoat surface? It appears that is what came from the factory originally on this old boat. Mine was cracked and dried out so I heated it with a heat gun and peeled/scraped it off and then...
  14. 76SeaRay

    Gimbal Housing to Inner Transom Bolts and Studs Replacement??

    This is an Alpha One Gen One. At the very top of the housing, there are two bolts that look in great shape (almost new looking). Next going down the drive are the two long studs that look in good shape with some corrosion on the tips of them on the drive side of the gimbal housing. The ends...
  15. 76SeaRay

    Speedometer Pitot Tube Alpha One

    So, I have seen where there is an opening on the leading edge of the drive that is used as the pitot tube for the speedometer. I don't find that my lower unit has one (on either of my two lower unit housings). My drive is an Alpha One Gen One. Is this only a feature on Alpha One Gen II and/or...
  16. 76SeaRay

    Venting the Dog House

    So, when I got this boat in really ragged shape, the vent duct was rotted out and mostly missing. The boat as starboard and port vents 16 inches long by 1 inch high at 44 inches forward of the transom and both louver vents are forward facing as intakes. The intakes are pointing out to the side...
  17. 76SeaRay

    Roughing In Front Motor Mounts Location Question

    Now that my new transom is in and I am starting on the stringers, I need to know for sure where my front motor mounts will land before putting in the new stringers and floor. This boat originally had an OMC Windsor 351 in it with an OMC stringer drive so want to be sure the 5.7L Alpha One is...
  18. 76SeaRay

    Dipstick Tube Attachment to Block

    I bought a new marine dipstick and tube (one that goes to the bottom of the pan) for my 1996 Chev 5.7L. The problem I have is that the tube slides down into position at the flair but is not a press fit to the block like I have experienced with cars and trucks. So, it is loose and will slide...
  19. 76SeaRay

    Marine Starter Question Chev 5.7L vortec engine

    I need to buy a new marine starter for my 1996 Chev 5.7L Vortec engine. When I look up starters, the listings show starters for Mercruiser 5.7L from 1998 to 2001. Chev vortecs all used the same "880" block from 1996 to 2001 and I believe the same starters. The vortec designation is only due...
  20. 76SeaRay

    Transom Questions

    Hmm, try again with the pics.....
Top