FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
In Other News . . .
You will notice a few enchancements to the forums to make your experience better. These include: Email Notifications, Thread Previews, Thread Starter Notation, and Emoji Options on the 'Like' icon. . .
Additionally, the merchant portions of the website have been updated and are now operational. . . . Check out iBoats for all your boating gear.
Appreciate the bolt tip, I am not one to force things and break them, but I’ll use the strap wrench. Thanks for fault finding tips too, I’ll try them all to be sure before I pull the engine out, but I’m doing my research early on strong evidence.
I myself haven’t confirmed a cracked block...
Great, thanks for the sizing info.
Thanks for tip on crank bolt - I’ll avoid that, but can you tell me specifically why? Just that I’ve seen engine guys over here use a big 3/4” ratchet to turn the crank pulley to rotate and work lube in cylinders prior to firing up an engine laid up for years...
Thanks. If block is cracked and I go long block plus manifolds, I am assuming the rest of the engine will swap over ok, if I buy the right block? Any company in particular to look to get a block from?
I’ll replace anything that doesn’t look reliable, eg hoses and wiring as required - is there...
Yes, I’m heading out this weekend to check:
fuel supply to carb, Fuel pump pressure, carb working ok and run with new fuel off a portable tank
plus
spark at plugs, new plugs if required
Compression
I’ll change oil prior to this and replace fuel filter too.
I’ll definitely use a machine shop for testing and machining, plus advice.
But if I go new block and keep the 4.3 I’ll be doing almost everything myself unless totally impossible without serious/specific tools and machines.
I’ll have to buy some kit/tools but I’ll save that cash in paying other...
Thanks, great info, appreciate the detailed reply!
I’m not overly worried about top end speed/power,
So a 4.3 might be the easiest. I can move mounts and do Fibreglass work, so if I have the space I guess 5.0 will be more popular when I eventually sell it after I’m done with it...
Thanks, and thanks for the quick reply!
Of course, before trashing it I am going to test fuel/spark and work backwards so I can run it or recreate the failure the seller said he had. I have the ability to do that no problem.
The specifics of these engines however and the costs of parts, I am...
Hi, I think this is quite a specific ask - sorry if it's been answered before, and thanks in advance for any help or comments, no matter how blunt...
I Just bought a 1996 caravelle with Merc' 4.3 and alpha one, with a dud engine but decent drive and good hull.
Seller said it was cranking and...