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  1. Lou C

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    Ok see it now. Yes those tensioners are commonly used I have one on my ‘07 Jeep 5.7 Hemi. My ancient 4.3 still has V belts.
  2. Lou C

    Omc 4.3? What did i buy?

    Ok from the 14088553 the 553 is the actual casting #, that lines up with a 1986-1988 with one piece main seal. The 14094768 head casting number lines up with the same year range The .20 might be the size the cyls were bored during the rebuild. The T#s are probably a GM serial number, the T...
  3. Lou C

    Volvo Penta 5.7Gi Closed Cooling Question

    It’s hard to tell from pix but try tapping them with a small hammer, if it makes a sharp ring then they probably are still solid, if they make a dull thud with flakes falling off they need to be replaced.
  4. Lou C

    5.7 Venturi Cluster

    As I said before, even though its not a Quadrajet, post this up on Cliff's Quadrajet site, someone there may know.
  5. Lou C

    Omc 4.3? What did i buy?

    You have to be more specific, which numbers came from where on the engine. You should be looking at the block casting # right behind cyl #6, and the cyl head casting #s that you can see when you take off the valve covers. The marine Fel/Pro head gaskets are blue.
  6. Lou C

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    Your actual boat is different than the diagram you posted. That diagram had a tensioner, on yours you seem to have 2 idlers. The adjustment is made by moving either the alternator or the P/S pump, whichever it is that has adjustable mounts. Its a good idea at the start of each season to loosen...
  7. Lou C

    New Gimbal bearing won’t take grease

    Try reaching in and turning the bearing while greasing it. I use Lucas marine grease (blue grease) and no problem with greasing it.
  8. Lou C

    Omc 4.3? What did i buy?

    It could be a truck motor or even a Merc 4.3 since theirs were painted black instead of grey. The differences were stainless steel head gaskets and brass freeze plugs. If it’s a year older than your engine that could explain the flat tapper cam. I have a 1988 original OMC 4.3 and it has the...
  9. Lou C

    New Gimbal bearing won’t take grease

    Are you sure this is a greasable gimble bearing? Because the newer ones are often not greasable. Another foolish idea from Merc & Volvo.
  10. Lou C

    Should I keep the Volvo 280?

    Yep there are deals out there I’m thinking its guys in freshwater regions parting out rotted 30 year old boats. I collected enough Cobra stuff to keep me going for years. For a minimal investment really.
  11. Lou C

    Neutra Salt System Solenoid and pully question VP 5.7 Gi-f

    Not familiar with the neutra salt system but the pulley you referenced is simply an idler pulley and the tensioner is part # 11. If you need to replace there is a Volvo Penta parts catalog linked to iBoats you need your model # to order parts. The bearings in the idler and tensioner can wear out...
  12. Lou C

    Volvo Penta 5.7Gi Closed Cooling Question

    Your temps in the vid really didn’t go over 175* even after you slowed down. I’m surprised that Volvo says that the temps of 30 over what’s normal for raw water cooling are expected I’d have thought more like about 180. Ok so your temps appear normal it may look high because of the gauge used...
  13. Lou C

    Should I keep the Volvo 280?

    The solution to your situation is dependent on the answer to these questions: Do you have any good independent mechanics who will work on them? Will they accept using parts that you have supplied? If the answer to both is yes then I’d keep it. If the answers are no then converting to a Merc or...
  14. Lou C

    Volvo Penta 5.7Gi Closed Cooling Question

    The Volvo manifolds can’t be set up for full closed cooling. So if replacement is needed you’re replacing the whole thing. $725 or so Barr aftermarket for the whole kit. Just put a better coat of paint on them first. I think the OP’s running temp is a bit higher that what you see with raw water...
  15. Lou C

    Volvo Penta 5.7Gi Closed Cooling Question

    I prefer to remove the manifold due to risk of rusty bits falling into a cylinder even though it’s a bit more work. I changed the exhaust on my OMC 3 times in my salt water use. first pic is what the sealing surfaces look like when new on this style of exhaust... second pic shows my old OMC one...
  16. Lou C

    Kill Switch now mandatory....take a look at this.....

    Asked the question of a member on THT, CG guy and he said that you won't be required to retrofit one to an older boat but you can just imagine, when you get pulled over while the young CG guys are asking you how many life jackets you have and if your flares are expired, why you don't have...
  17. Lou C

    Volvo Penta 5.7Gi Closed Cooling Question

    just an example of what you'd be looking for...the elbows on the left are Merc dry joint ones but you can see how when installed they would look fine from the outside but are bad on the inside, the other pic shows how the sealing surfaces get eroded and will not seal.
  18. Lou C

    Whats the gap on the spark plug for a 83 omc 3.8 gm

    For oil you can use straight 30, 15w/40, 20/50, or Merc’s 25/40. Just not the lighter weight automotive oils like 5/30 or 10/30, these may thin out during high rpm marine use.
  19. Lou C

    Volvo Penta 5.7Gi Closed Cooling Question

    If you are going to check them throughly you need to take off the elbows and manifolds. Prop up the manifolds level and carefully fill with acetone (careful very flammable) let them sit and then see if you see any leakage in the poets that match up with the cyl head. And you have to check the...
  20. Lou C

    Kill Switch now mandatory....take a look at this.....

    If you boat where the Coast Guard patrols, then yes this will be checked, if they pull you over they check EVERYTHING, even the expiration on flares and give tickets for that. Not sure if states will choose to not enforce on inland waterways but coastal regions are US Coast Guard territory (Fed...
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