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Search: Posts Made By: Dave Neptune
Forum: General Maintenance 09-18-2018, 05:34 PM
Replies: 2
Views: 112
Posted By Dave Neptune
Gregh, you are definitely loading the cylinders,...

Gregh, you are definitely loading the cylinders, probably to much prop.

If you have a timing light you can check for full advance of the c-advance mechanism. You should have full advance by...
Forum: General Interest 09-18-2018, 04:41 PM
Replies: 16
Views: 246
Posted By Dave Neptune
Steve, sit by the mast when it is ready with a...

Steve, sit by the mast when it is ready with a free beer sign. Once a half dozen have showed up say it's up there and it's free if you help carry this mast up the hill:D. May need to BBQ something as...
Forum: Troubleshooting 09-13-2018, 09:43 AM
Replies: 127
Views: 3,436
Posted By Dave Neptune
Question Gem555, I bought an A-4 that was seized while...

Gem555, I bought an A-4 that was seized while inside an E35 MkII. It took a week to get it running again and it did not fail me once in 34 years and is now serving the new owner.

Not a dis on you...
Forum: General Interest 09-08-2018, 08:14 PM
Replies: 5
Views: 162
Posted By Dave Neptune
Greg, use 1/8" tubing and fittings just like the...

Greg, use 1/8" tubing and fittings just like the scavenge tube. Use an extra foot or so and the needle will calm down at idle.

Watch the gage as you increase and decrease throttle. Watching will...
Forum: Troubleshooting 09-04-2018, 04:25 PM
Replies: 4
Views: 2,879
Posted By Dave Neptune
S & z, it could easily be the alternator kicking...

S & z, it could easily be the alternator kicking in and out. Check the charging levels during the next episode. You can also disable the alt via the belt or unplugging the "exciting" wire to see if...
Forum: Troubleshooting 08-31-2018, 12:56 PM
Replies: 3
Views: 136
Posted By Dave Neptune
I have "brazed" far worse looking things. Really...

I have "brazed" far worse looking things. Really not a biggie.

If the "brazing" material builds up in the injection tube it can easily be drilled out.

Dave Neptune :cool:
Forum: Overhaul 08-28-2018, 05:41 PM
Replies: 9
Views: 416
Posted By Dave Neptune
The gasket surfaces won't rust enough during...

The gasket surfaces won't rust enough during painting to worry about. The bit of color of the rust will pretty much just wipe off. These are hi nickel castings so rust is at a minimum for cast iron. ...
Forum: Ignition System 08-28-2018, 05:30 PM
Replies: 5
Views: 144
Posted By Dave Neptune
Neil, if you can mark the accy pulley when #1 is...

Neil, if you can mark the accy pulley when #1 is firing you can replace the distributor in approximately the same place using the direction the rotor is pointed as another mark. Then you can just...
Forum: Fuel System 08-26-2018, 12:38 PM
Replies: 8
Views: 263
Posted By Dave Neptune
Al, did you make sure the "fuel pump push rod"...

Al, did you make sure the "fuel pump push rod" was in place to actuate the pump?

Dave Neptune :cool:
Forum: Electrical 08-25-2018, 04:05 PM
Replies: 18
Views: 442
Posted By Dave Neptune
I the crack did not get it to fire I doubt you...

I the crack did not get it to fire I doubt you have spark at the plugs, especially if the plugs were dry. Did you smell gas on the plugs or emanating from the cylinders?

Next confirm spark at the...
Forum: Electrical 08-25-2018, 12:00 PM
Replies: 18
Views: 442
Posted By Dave Neptune
If it starts or sputters on crack that means the...

If it starts or sputters on crack that means the ignition side is functioning. It also means that the carb is not delivering fuel properly.

The flame arrestor does need inspection and occasional...
Forum: Electrical 08-25-2018, 11:02 AM
Replies: 18
Views: 442
Posted By Dave Neptune
goodolboat, did you try "motor crack" (starting...

goodolboat, did you try "motor crack" (starting fluid). A quick spray and a crank will let you know if you have spark at the plugs. If it kicks on "crack" you definitely have a fuel problem.

Dave...
Forum: Electrical 08-25-2018, 10:13 AM
Replies: 18
Views: 442
Posted By Dave Neptune
goodolboat, checking the spark at the time of...

goodolboat, checking the spark at the time of failure is a must. As it topped suddenly it could still be electrical in nature~~don't forget to check the ignition for voltage from the Ign switch. The...
Forum: Cooling System 08-23-2018, 10:05 AM
Replies: 10
Views: 372
Posted By Dave Neptune
Another point

One thing we all need to remember is that our accessory drive and alt are a closed loop!! There are only 2 pulleys involved and there is about 180 degrees of contact area, whereas most pulley drives...
Forum: Troubleshooting 08-19-2018, 08:46 PM
Replies: 24
Views: 679
Posted By Dave Neptune
Steve, if the rpms rise a bit and no gain in...

Steve, if the rpms rise a bit and no gain in speed is often growth. A Go-pro or a mask and a dip will tell you that.

If it is not the growth it could be sticking advance weights in the distributor...
Forum: Cooling System 08-19-2018, 05:57 PM
Replies: 4
Views: 153
Posted By Dave Neptune
77, the brass fitting is the diverter and the...

77, the brass fitting is the diverter and the hole in the side is to force water to the front (#4) of the block.

Both the side plate and the diverter are available from our host.

Dave Neptune
Forum: Overhaul 08-18-2018, 09:51 PM
Replies: 8
Views: 329
Posted By Dave Neptune
Talking Kudos Jerry, one of the best engine one liners...

Kudos Jerry, one of the best engine one liners I've heard:):)nicely stated.

A lil comedy goes a long way!

Dave Neptune :cool:
Forum: Ignition System 08-11-2018, 12:14 PM
Replies: 9
Views: 386
Posted By Dave Neptune
Exclamation GAP ????????

Stephen, RE the gap fixing the problem. In many of these "old distributors" setting the gap is very inaccurate and gets worse with wear!! Once the points are installed and the engine is running CHECK...
Forum: Ignition System 08-11-2018, 10:29 AM
Replies: 28
Views: 877
Posted By Dave Neptune
Having an EI and a weak spark is not good. The...

Having an EI and a weak spark is not good. The spark should be snappy and blue. I would check the "RUNNING" voltages at the coil to confirm good voltage. Then I would remove the cap and rotor for...
Forum: Fuel System 08-11-2018, 10:15 AM
Replies: 7
Views: 254
Posted By Dave Neptune
Steve, to add to Bill's statement it could be a...

Steve, to add to Bill's statement it could be a very minor air leak upstream too.

About the only thing that will keep a mechanical pump from pumping is lack of motion IE the plunger that actuates...
Forum: Troubleshooting 08-11-2018, 10:10 AM
Replies: 6
Views: 356
Posted By Dave Neptune
The best way to lube sticky valves is with a...

The best way to lube sticky valves is with a spray into the cylinder or via the fuel at a 100:1 mix or about 1 1/4 oz's per gallon.

The fuel goes past the valves for excellent delivery if you can...
Forum: Troubleshooting 08-05-2018, 09:46 AM
Replies: 11
Views: 383
Posted By Dave Neptune
Joe, oil leaks can be a bit of a pain. Check the...

Joe, oil leaks can be a bit of a pain. Check the galley plugs on the manifold side of the block, the valve cover plate. The seal on the back end of the engine can drip if failing. There is no seal at...
Forum: Alberg 08-04-2018, 08:41 PM
Replies: 17
Views: 901
Posted By Dave Neptune
Greg, those oil numbers are excellent indeed. ...

Greg, those oil numbers are excellent indeed.

The temps depend on the set up. What kind of water are you in, raw water cooled or a HX?

If you are messing with a "bypass valve" be sure the...
Forum: Fuel System 08-04-2018, 08:37 PM
Replies: 11
Views: 397
Posted By Dave Neptune
Marty, I had my second shut off valve on the fuel...

Marty, I had my second shut off valve on the fuel pressure gage. When ever I left the boat in the slip I ran the gas out, however weekending I did not. No messes when almost all of the gas is out of...
Forum: General Maintenance 08-04-2018, 01:53 PM
Replies: 4
Views: 220
Posted By Dave Neptune
D, re the 100:1 mix. It is for lubricating the...

D, re the 100:1 mix. It is for lubricating the valves. Many on this forum run the MMO @ 100:1 full time. It is not enough to do any sort of fouling and it does a good job of carrying the oil to the...
Showing results 1 to 25 of 500

 
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