Project of the Month built by mayhugh1

Help Support Home Model Engine Machinist by donating using the link above or becoming a Supporting Member.
Home Model Engine Machinist > Showing Them > Finished Projects > Frisco Standard

Reply
 
Thread Tools
Old 03-21-2016, 07:00 PM   #11
fourstroke
 
Join Date: Dec 2009
Location: West Calder, Scotland
Posts: 148
Liked 171 Times on 66 Posts
Likes Given: 41

Default

Hi
Like I said on youtube, you made a really good job of your engine

I'm building a twin open crank at the moment, its based on a frisco standard and the build is on here, Can you help with some things that are puzzling me?

I am lost in regards how to lubricate the gudgeon pins, how does it work on your engine? I plan to fix the pin to the conrod and let it move in bushes in the piston with the hope that oil from the cylinder walls will make it into the bushes

Is the carb on your engine an"automatic" one?. I dont know if thats the correct terminology,
Anyway, great job

Dougie


fourstroke is offline  
 
Reply With Quote
Old 03-22-2016, 12:55 PM   #12
seadragonfoundry
 
seadragonfoundry's Avatar
 
Join Date: Sep 2012
Location: Victoria, Australia
Posts: 52
Liked 49 Times on 16 Posts
Likes Given: 3

Default

Hello Doug,,
I have seen your posts and I must express my admiration for what you are doing, it was relatively easy for me, buy the plans and castings and build the engine, you are starting from scratch.The gudgeon pins are secured by 3 mm grub screws to the piston, one each side so the moving contact is between the gudgeon and the con rod. I machined a flat each side of the gudgeon for the grub screw to engage with a small amount of clearance , my theory being that oil may move from the cylinder walls on the down stroke past the grubs screws to lubricate the small end. For the amount of time the engine will run, I don't think it is that critical.


__________________
I'll never forget whatsisname.
seadragonfoundry is offline  
 
Reply With Quote
Old 03-22-2016, 01:17 PM   #13
seadragonfoundry
 
seadragonfoundry's Avatar
 
Join Date: Sep 2012
Location: Victoria, Australia
Posts: 52
Liked 49 Times on 16 Posts
Likes Given: 3

Default

Doug,I'm sorry I missed your other question.The carby is a spring loaded mitre valve type a la Centaur. I don't like them. They do work but I feel that the low pressure in the manifold to overcome Spring pressure tends to condense any moisture in the air leading to wet plugs or moisture/ gumming of the piston rings. I feel you need to run the engine until it is hot to overcome this problem and avoid short runs of only a few minutes.. I had the same problem with a Holt I built, especially in winter. That is only my uneducated opinion. You are doing a marvellous job with your engine and I stand in awe of you.
__________________
I'll never forget whatsisname.
seadragonfoundry is offline  
 
Reply With Quote
Old 03-22-2016, 08:17 PM   #14
fourstroke
 
Join Date: Dec 2009
Location: West Calder, Scotland
Posts: 148
Liked 171 Times on 66 Posts
Likes Given: 41

Default

Thanks Seadragonfoundry

Thats helped a lot, I have more confidence now my system will work regarding the gudgeon oiling

I was contemplating an automatic carb but your comments have convinced me to stick with a simple venturi / spray bar type
Oh well, back to the back of the envelope so to speak

Thanks again

Dougie
fourstroke is offline  
 
Reply With Quote
Old 03-26-2016, 01:47 PM   #15
olympic
 
Join Date: Feb 2011
Posts: 4
Liked 3 Times on 2 Posts

Default

Wow! Very mine work, indeed.
olympic is offline  
H. K. Barrows Likes This 
Reply With Quote
Old 03-28-2016, 12:14 AM   #16
P.J
 
Join Date: Jan 2010
Posts: 18
Liked 3 Times on 3 Posts
Likes Given: 83

Default

Wow, that is absolutely gorgeous!
P.J is offline  
 
Reply With Quote
Old 01-06-2017, 12:43 AM   #17
mfrick
 
Join Date: May 2015
Posts: 10
Liked 1 Times on 1 Posts
Likes Given: 3

Default

Very nice job. I have a fresco that I have tried to get to run on the ingniters but it just runs for short spurts of time. What did you use for spark on your plugs?

Mike
mfrick is offline  
 
Reply With Quote
Old 01-07-2017, 02:46 AM   #18
seadragonfoundry
 
seadragonfoundry's Avatar
 
Join Date: Sep 2012
Location: Victoria, Australia
Posts: 52
Liked 49 Times on 16 Posts
Likes Given: 3

Default

Hello Mike,
I used a CDI ignition system from Roy Scholl, I never had a lot of luck with igniters or rather, I lack the skill and determination!
__________________
I'll never forget whatsisname.
seadragonfoundry is offline  
 
Reply With Quote
Old 01-07-2017, 06:21 PM   #19
mfrick
 
Join Date: May 2015
Posts: 10
Liked 1 Times on 1 Posts
Likes Given: 3

Default Cdi

Thanks Jeff I will be contacting Roy. I have included a photo of my Fresco enjoy.

Mike
Attached Thumbnails
20170107_100306.jpg  
mfrick is offline  
minh-thanh Likes This 
Reply With Quote
Old 07-10-2017, 01:12 AM   #20
mfrick
 
Join Date: May 2015
Posts: 10
Liked 1 Times on 1 Posts
Likes Given: 3

Default

Hello

Mike Frick here I have a question on what size spark plugs you used on your Fresco I have plans to Change my Fresco over to plugs instead of the ignitors. I appreciate your help.http://cdn.homemodelenginemachinist....ilies/shtf.gif

Mike


mfrick is offline  
 
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sharing our best non-standard practices. edholly Tips and Tricks 9 10-05-2014 07:28 PM
New Frisco Standard Mike N Engines From Castings 16 06-27-2013 07:51 PM
Standard Modern 1334 lathe ninefinger Tools 15 11-05-2012 12:54 AM
standard bolt turning query timtheauthor General Engine Discussion 5 11-18-2011 09:09 PM
Adept standard lathe question tel Tools 2 03-23-2011 10:34 AM



Newest Threads






- Top - Member List