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Forum: Engine / Drive Train 03-22-2015, 01:43 PM
Replies: 12
Views: 509
Posted By jfw432
Well I managed to score a new shaft and coupler...

Well I managed to score a new shaft and coupler for $235 shipped! Apparently the shafts that were the right size for my boat were luckily overstocked. I was seriously considering having everything...
Forum: Engine / Drive Train 03-22-2015, 12:28 AM
Replies: 12
Views: 509
Posted By jfw432
Just enough to see that it is twisting but you...

Just enough to see that it is twisting but you can't really see the keyway edges getting mismatched.

Sorry, this shaft and coupler is more closely related to nautiques. I'd ask over on those forums...
Forum: Engine / Drive Train 03-22-2015, 12:13 AM
Replies: 12
Views: 509
Posted By jfw432
Yes it does have a keyway as well and the key...

Yes it does have a keyway as well and the key isn't shearing or anything but isn't that more of alignment that load bearing? I've never heard of a slip fit (loose) driveshaft and coupler combo as...
Forum: Engine / Drive Train 03-21-2015, 10:14 PM
Replies: 12
Views: 509
Posted By jfw432
Driveshaft replacement?

The coupler on my driveshaft has some wiggle to it and has for some time. It's one of those things that has scared me a little but it has been working for years. Basically it looks like the...
Forum: General Discussion 02-20-2015, 11:48 AM
Replies: 17
Views: 1,092
Posted By jfw432
Would make trimming the wake really easy though....

Would make trimming the wake really easy though. I won't give up my DD but a very cool idea and I would think less ballast weight would be needed if you trim it properly. Maintaining speed and seeing...
Forum: General Discussion 02-20-2015, 08:58 AM
Replies: 0
Views: 182
Posted By jfw432
EVA Foam and differences

I'm curious if anyone knows of a real difference in all the EVA foams. I've used Hydroturf, Blacktip, and seen/walked on SeaDek but never purchased it. From what I can tell, they are all the same...
Forum: Engine / Drive Train 02-10-2015, 07:11 PM
Replies: 123
Views: 43,031
Posted By jfw432
Yeah they are metal rings. Looks like the kit you...

Yeah they are metal rings. Looks like the kit you bought includes them now but maybe not when you bought them. The rings on mine looked fine but figured I'd change them while I was in there anyway. I...
Forum: Engine / Drive Train 02-09-2015, 05:32 PM
Replies: 123
Views: 43,031
Posted By jfw432
Good call. Actually, I'm not seeing them in your...

Good call. Actually, I'm not seeing them in your diagram but it's in the 71c manual. It's items 78 and 83 in the pictures attached from your link to the BW71C_72C reduced file.

edit: Looks like...
Forum: Engine / Drive Train 02-09-2015, 07:20 AM
Replies: 123
Views: 43,031
Posted By jfw432
Good writeup. Thanks! One question though. I may...

Good writeup. Thanks!

One question though. I may have missed it but is there any reason that you didn't replace the metal sealing rings?
Forum: Engine / Drive Train 02-03-2015, 09:12 PM
Replies: 9
Views: 615
Posted By jfw432
Cool thanks. The heads are in the car and will go...

Cool thanks. The heads are in the car and will go to the shop tomorrow.
Forum: Engine / Drive Train 02-03-2015, 09:40 AM
Replies: 9
Views: 615
Posted By jfw432
These are GT40p heads. I just figured if the cost...

These are GT40p heads. I just figured if the cost was going to be really expensive, I'd just put my stock heads back on instead as they're in better condition.

Called the engine shop I've been using...
Forum: Engine / Drive Train 01-31-2015, 12:16 PM
Replies: 9
Views: 615
Posted By jfw432
Any idea of the cost of this? I'd prefer to use...

Any idea of the cost of this? I'd prefer to use these GT40p heads again but I have standard heads that are in good shape that may be a better option if all the valve work becomes cost prohibitive.
Forum: Engine / Drive Train 01-31-2015, 10:23 AM
Replies: 9
Views: 615
Posted By jfw432
Opinions on valve work

I'm rebuilding my engine this winter and decided since everything was getting a refurb, I figured I would replace the valve stem seals as well....and since that's getting done, might as well do a...
Forum: Engine / Drive Train 01-04-2015, 07:52 PM
Replies: 2
Views: 333
Posted By jfw432
I did a quick check of the crank and cam. The...

I did a quick check of the crank and cam. The crank needs to be turned but the cam looks good. The cam bearings look good as well. I quickly checked a few of the cam lobes and they looked spot on for...
Forum: Engine / Drive Train 01-04-2015, 07:30 PM
Replies: 2
Views: 333
Posted By jfw432
Blown head gasket

A little background... I'm rebuilding my 351W engine this winter because the drain tube broke and drained all the oil out while I was on the lake one day in August. Caught it pretty early and kinda...
Forum: Engine / Drive Train 10-09-2014, 10:16 AM
Replies: 6
Views: 586
Posted By jfw432
Thanks I did give the offset rudder consideration...

Thanks I did give the offset rudder consideration but I'm not sure I buy into the handling aspects. Have seen plenty of RH props with a LH rudder offset and LH props with RH and LH rudder offsets. My...
Forum: Engine / Drive Train 10-06-2014, 06:38 PM
Replies: 6
Views: 586
Posted By jfw432
Ok that's what I figured. Thanks for the help!

Ok that's what I figured. Thanks for the help!
Forum: Engine / Drive Train 10-06-2014, 02:27 PM
Replies: 6
Views: 586
Posted By jfw432
I think I see what you're talking about. So you...

I think I see what you're talking about. So you would just have to rotate the pump so that the orientation matches the engines rotation direction? This is the very inboard piece on the transmission...
Forum: Engine / Drive Train 10-06-2014, 12:58 PM
Replies: 6
Views: 586
Posted By jfw432
1:1 Borg/Warner tranny rotation

Just out of curiosity, do the 1:1 tranny's care which way is forward and which is reverse? If the same exact transmission is bolted to standard and reverse drive engines, that opens up possibilities...
Forum: Engine / Drive Train 09-26-2014, 08:44 PM
Replies: 13
Views: 583
Posted By jfw432
It's a Ford based motor but it sounds like as...

It's a Ford based motor but it sounds like as long as I can find bearings for whatever underside I need, it'll be fine.
Forum: Engine / Drive Train 09-26-2014, 03:48 PM
Replies: 13
Views: 583
Posted By jfw432
Oil analysis shows higher than normal copper and...

Oil analysis shows higher than normal copper and lead so my guess is the bearings took a beating... They told me that my lead and copper values were similar to an engine that had been running the oil...
Forum: Engine / Drive Train 09-26-2014, 03:11 PM
Replies: 13
Views: 583
Posted By jfw432
Doesn't sound like the same money... Sounds like...

Doesn't sound like the same money... Sounds like a new crank will be at least $600. Am I missing something?
Forum: Engine / Drive Train 09-25-2014, 10:03 PM
Replies: 8
Views: 554
Posted By jfw432
The other option is that maybe your pitot hose...

The other option is that maybe your pitot hose has a crack in it. You could pull the hose off your gauge, plug it with a golf tee or bolt, and lay it in the boat where you can see it. If water...
Forum: Engine / Drive Train 09-25-2014, 09:04 PM
Replies: 13
Views: 583
Posted By jfw432
Grind or replace the crank

Long story short, after only 2 years on a fresh rebuild, my drain hose for the oil broke and all the oil ran out of the pan while I was driving. Caught it early so the engine still works but it feels...
Forum: Engine / Drive Train 09-22-2014, 09:11 AM
Replies: 8
Views: 554
Posted By jfw432
Does the pitot speedometer have an adjustment...

Does the pitot speedometer have an adjustment knob on it? Most have them on the front but some have them on the back. Could be that the calibration is so far off that it's reading that low.
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