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Search: Posts Made By: Sculldog1
Forum: Troubleshooting 05-07-2023, 09:52 AM
Replies: 6
Views: 1,234
Posted By Mo
If it still doesn't seem right do another...

If it still doesn't seem right do another compression check on 3 and 4 just to ensure you have decent compression and no head gasket failure between cylinders. I think it a fire issue...
Forum: Troubleshooting 05-06-2023, 12:07 PM
Replies: 6
Views: 1,234
Posted By Mo
Yes, if your valves are all free now by all means...

Yes, if your valves are all free now by all means reassemble everything and see what you have. The number 3 and 4 should not have been related. As Dave noted, check your firing order, take a second...
Forum: Troubleshooting 05-06-2023, 09:15 AM
Replies: 6
Views: 1,234
Posted By Dave Neptune
Double check to be sure the plug wires are in the...

Double check to be sure the plug wires are in the correct order. It is easy to get them mixed up.

Dave Neptune :cool:
Forum: General Maintenance 10-10-2022, 12:03 AM
Replies: 5
Views: 1,949
Posted By tenders
If you need it, somewhere around here I have a...

If you need it, somewhere around here I have a beautiful Moyer split coupler for a 3/4" shaft that is sadly not compatible with my vee-drive transmission.

I bought it secondhand but unused from...
Forum: General Maintenance 10-06-2022, 05:08 PM
Replies: 5
Views: 1,949
Posted By ndutton
The shaft coupler is thru-drilled, no threads. ...

The shaft coupler is thru-drilled, no threads. The engine output coupler (where it attaches) has the threads. If the two mating couplers are "rust-welded" together, I fashioned a splitter out of a...
Forum: Troubleshooting 11-20-2021, 09:49 AM
Replies: 6
Views: 1,390
Posted By joe_db
Yes very much so!

Yes very much so!
Forum: Troubleshooting 11-19-2021, 05:10 PM
Replies: 6
Views: 1,390
Posted By Dave Neptune
Absolutely, barnacles and such don't know to grow...

Absolutely, barnacles and such don't know to grow "evenly dispersed".

Dave Neptune :cool:
Forum: Exhaust System 08-30-2021, 10:57 PM
Replies: 2
Views: 1,700
Posted By edwardc
Once the water's injected, the exhaust temp...

Once the water's injected, the exhaust temp should be reduced, so any length of rubber hose should be fine, as long as you can physically manipulate it into place. If the hose is really short, you...
Forum: Overhaul 07-25-2021, 06:47 PM
Replies: 5
Views: 2,083
Posted By Al Schober
Using a valve as a lapping tool is OK, but it's...

Using a valve as a lapping tool is OK, but it's not going to remove much metal. You really need something more aggressive, such as the stone in the photo.

Last engine I did, I had the shop do the...
Forum: Overhaul 07-21-2021, 12:02 AM
Replies: 5
Views: 2,083
Posted By Dave Neptune
Valve seat "cutters" are available easy to use...

Valve seat "cutters" are available easy to use and usually available for rent. I have used them of many engines.

Dave Neptune :cool:
Forum: Overhaul 07-19-2021, 06:54 PM
Replies: 5
Views: 2,083
Posted By Surcouf
I would say the old valve: might be pitted and...

I would say the old valve: might be pitted and not re-usable, but should be a good "lapping tool"
Forum: Overhaul 07-13-2021, 10:33 AM
Replies: 18
Views: 3,018
Posted By ndutton
It may help to understand how an anti-siphon...

It may help to understand how an anti-siphon functions. It allows air to enter the cooling system in the event of negative pressure, a suction, thereby interrupting the suction. As you'll remember...
Forum: Overhaul 07-12-2021, 11:43 AM
Replies: 18
Views: 3,018
Posted By ndutton
+1 on the open anti-siphon loop. Nothing to...

+1 on the open anti-siphon loop. Nothing to clog, nothing to fail.
Forum: Overhaul 07-12-2021, 11:23 AM
Replies: 18
Views: 3,018
Posted By Dave Neptune
Joe, my original exhaust was done with a 45* side...

Joe, my original exhaust was done with a 45* side out with a fitting similar to the MMI unit. It worked very well. The two exhaust systems I built I cut and brazed into a straight section at a 30*...
Forum: Overhaul 07-12-2021, 08:49 AM
Replies: 18
Views: 3,018
Posted By joe_db
My water injection looks like the photo above,...

My water injection looks like the photo above, but I have an internal pipe that sticks down about 3 or 4 inches to carry water past the T junction.
Moyer sells something similar:...
Forum: Overhaul 07-11-2021, 10:31 AM
Replies: 18
Views: 3,018
Posted By edwardc
I agree with Dave. Your water injection is too...

I agree with Dave. Your water injection is too high. It should be at least 4" below the high spot on the dry stack. You're going to continue to get water in the manifold with that setup.

I would...
Forum: Overhaul 07-10-2021, 11:28 PM
Replies: 18
Views: 3,018
Posted By Dave Neptune
Your water injection point needs to be below the...

Your water injection point needs to be below the high spot. Water can dribble down the pipe into the exhaust manifold and create a lot of moisture that the valves don't like.

Dave Neptune :cool:
Forum: Exhaust System 06-25-2021, 03:43 PM
Replies: 2
Views: 992
Posted By Mo
I don't do anything...this is an updraft carb...

I don't do anything...this is an updraft carb engine. We are not talking high fuel pressure of fuel injected engines. Snug that compression gauge fitting tight so that you don't loose compression...
Forum: Cooling System 06-08-2021, 11:14 AM
Replies: 14
Views: 2,757
Posted By roadnsky
Vinegar is much easier to use and is a more...

Vinegar is much easier to use and is a more "forgiving" acid.
It also isn't bad for the environment if you let it flow out the exhaust into the surrounding water.
As Dave said, try that first,...
Forum: Cooling System 05-19-2021, 06:22 PM
Replies: 14
Views: 2,757
Posted By Al Schober
Surprised John didn't mention it, but check the...

Surprised John didn't mention it, but check the outlet elbow from the manifold. Also, remove the thermostat until you get things under control.
Forum: Cooling System 05-19-2021, 05:41 PM
Replies: 14
Views: 2,757
Posted By JOHN COOKSON
SOME IDEAS

A good summary test is to attach a hose to the manifold outlet barb, start the engine briefly and rev it up. Should be like a garden hose in output. Only do this momentarily since there will be hot...
Forum: Fuel System 04-22-2021, 04:12 PM
Replies: 2
Views: 1,028
Posted By ronstory
I would just use a swipe around the threads with...

I would just use a swipe around the threads with Permatex #3 (Aviation grade). IME, it has better gasoline resistance than #2 and it still flexible.

You can used teflon tape as well, Teflon has...
Forum: Announcements 08-08-2020, 10:17 PM
Replies: 34
Views: 6,053
Posted By Administrator
Saying goodbye

Some sixteen years after conceiving and managing the forum on a daily basis, I am stepping away from responsibility for it, A member of the MMI family will hopefully inform you soon as to whether...
Forum: Fuel System 05-15-2020, 06:36 PM
Replies: 13
Views: 4,183
Posted By capnward
Congratulations on chasing down the problem. The...

Congratulations on chasing down the problem. The question remains, what caused the diaphragm to disintegrate? I suspect the previous use of ethanol fuel, which IMO degrades rubber. Adding MMO to the...
Forum: Fuel System 05-12-2020, 01:10 PM
Replies: 13
Views: 4,183
Posted By edwardc
This is usually indicative of the float valve not...

This is usually indicative of the float valve not closing. The fuel pump continues to pump fuel until the float bowl overflows. Common causes are:

Crud in the float valve seat
Float valve...
Showing results 1 to 25 of 35

 
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