User Tag List
Results 1 to 15 of 15
-
02-19-2020, 03:12 PM #1
Are Polished Reed Stops a good or bad thing ???????
So we sort of covered the exhaust side of the Johnson V4 140 build in a previous post, what about the intake side of things in particular the reed stops.
Is it better to have a polished mirror like surface on the reed stops to help the fuel flow better and faster through to the crankcase
OR
Is it better to have a smooth but not polished surface so the gas does not cling to the stops ?????
On a side note why does the 140 have shims under the outer set of stops ????Last edited by spybot; 02-20-2020 at 05:24 AM.
-
02-20-2020, 09:12 AM #2
I would think that a polished reed stop could cause the reeds to stick a little to the stop.
-
spybot thanked for this post
-
02-20-2020, 11:08 AM #35000 RPM
- Join Date
- Mar 2004
- Location
- vonore tn.
- Posts
- 225
- Thanks (Given)
- 0
- Thanks (Received)
- 21
- Likes (Given)
- 4
- Likes (Received)
- 28
- Mentioned
- 1 Post(s)
- Tagged
- 0 Thread(s)
I,ve never heard of a polished reed stop. A polished reed block may have an advantage, if you want to turn over 7,000 rpm. The only reason the spacer is there, is so longer reed valve screws. can be used & do not protrude into intake flow. But yet are long enough, so if they come out. they will not be able to fall into motor. Because they will back out only far enough, to be captured in intake or front half of block. Chris Carson reed stuffers, would work good in your motor. Another thing to help intake side is. Before assembly bolt intake & gaskets to front half. Check for any factory ridges that may be interrupting flow. Carefully grind them down with dremel. Go to boyesen reeds & remove reed stops.
Last edited by billybob; 02-20-2020 at 11:14 AM.
-
spybot thanked for this post
-
02-20-2020, 01:42 PM #4
Polished will cause fuel to stick. Polish exhaust, rough finish on intake.
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
-
02-20-2020, 02:53 PM #5
-
02-20-2020, 02:55 PM #6
-
02-20-2020, 03:03 PM #71980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
-
spybot thanked for this post
-
02-20-2020, 05:41 PM #8Banned
- Join Date
- Jan 2015
- Location
- Wisconsin
- Posts
- 2,331
- Thanks (Given)
- 458
- Thanks (Received)
- 343
- Likes (Given)
- 6429
- Likes (Received)
- 5147
- Mentioned
- 4 Post(s)
- Tagged
- 0 Thread(s)
-
spybot thanked for this post
-
02-21-2020, 10:54 PM #9
-
02-24-2020, 09:50 AM #10
Ifin it were me ...
I'd cut them off at the red line, round the corners off, throw them in the tumbler or bead blast em .. just something to knock down any bur's at the edges (it is a stanping)
and put them back together with new Carson reeds.
The flat will hold the reed in place, the radius will soften the hinge point, after that it's up to the reed to open as far as it wants to ..
-
spybot thanked for this post
-
02-24-2020, 11:33 AM #11
Cut like chaz says or find some like this https://www.ebay.com/itm/Johnson-leaf-plate-assembly-50-150-HP-1972-1983-4-available/181757795307?hash=item2a519bdbeb:g:sd0AAOSwpdpVZUUV . trash the ones with the bumper on the end.
-
spybot liked this post
-
02-24-2020, 04:06 PM #12Banned
- Join Date
- Jan 2015
- Location
- Wisconsin
- Posts
- 2,331
- Thanks (Given)
- 458
- Thanks (Received)
- 343
- Likes (Given)
- 6429
- Likes (Received)
- 5147
- Mentioned
- 4 Post(s)
- Tagged
- 0 Thread(s)
https://www.ebay.com/itm/Johnson-lea...0AAOSwpdpVZUUV
Re-posting above message to include link.
-
spybot thanked for this post
-
02-25-2020, 10:53 AM #13
OK so will look into cutting these ones i have.
So should it be straight across with a corner radius ??
I struggle to get parts like those listed above over here in Scotland.
Anything i buy from the US has an import tax around 13% then 20% added to the full value so the $80 Reed cadges would cost around £110 gbp plus the shipping so around £140 just to have them here.
I will try and cut these ones and take it from there, any other things i should look in to doing on the cadges petals ???
-
02-25-2020, 10:59 AM #14
Lap the reed cages to make sure they are perfectly flat.
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
-
02-25-2020, 01:35 PM #15
Similar Threads
-
Use reed stops with carbon reed ???
By merc_racer in forum Technical DiscussionReplies: 5Last Post: 10-21-2012, 11:01 AM -
Yamaha Tech: Chris Carson....Reed stops vs. no reed stops.
By Mr. Demeanor in forum Technical DiscussionReplies: 2Last Post: 09-11-2012, 09:22 PM -
Reed stops
By bw1969 in forum Technical DiscussionReplies: 3Last Post: 06-23-2002, 08:52 PM