Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Overhaul

Reply
 
Thread Tools Display Modes
  #51   IP: 192.186.122.174
Old 02-23-2021, 08:56 AM
GregH's Avatar
GregH GregH is offline
Afourian MVP
 
Join Date: Jun 2015
Location: Kingston, ON
Posts: 467
Thanks: 293
Thanked 59 Times in 51 Posts
Getting the shop to drill and tap the 3/4" NPT on the transmission case. The description on the tech tip is 5.6" from the rear face of aft housing - would that be parallel to the oil pan face or parallel to the cover plate for the transmission?

Any one have a sketch from face on that I can share with the shop?

Name:  Transmission plug.jpg
Views: 76
Size:  28.6 KB

NB: In case any on is confused from earlier today- I edited out a pic and question asked due to them being out in left field.
__________________
Greg
1975 Alberg 30

Last edited by GregH; 02-23-2021 at 04:03 PM.
Reply With Quote
  #52   IP: 100.40.58.241
Old 02-23-2021, 10:53 AM
jcwright jcwright is online now
Afourian MVP
 
Join Date: Jul 2012
Posts: 103
Thanks: 3
Thanked 61 Times in 41 Posts
Hello Greg.

Here is a link to a file with a photo and measurements of an A4 that may be helpful:

https://drive.google.com/file/d/1wBU...ew?usp=sharing

I've marked the known distance from the centers of the mounting holes and extrapolated what the "5.6" appears to refer to. Others who have made this modification hopefully will correct me if I'm wrong.

Best regards,

jack.
Reply With Quote
  #53   IP: 192.186.122.174
Old 03-31-2021, 08:48 AM
GregH's Avatar
GregH GregH is offline
Afourian MVP
 
Join Date: Jun 2015
Location: Kingston, ON
Posts: 467
Thanks: 293
Thanked 59 Times in 51 Posts
Alrighty, getting my block back from the shop in 2 weeks!

I was informed today (sorry no pic yet) that when they were decking (is that the right term?) the block, they discovered a small crack on either side of a water jacket flow hole. They did the stitching of it and say it will be fine. I only came across this stitching thing about a month ago on here. This stitching will prevent any water seeping through the crack?

Though we don't use sealant with the head gasket, should I spread some along the length of the crack anyways?
__________________
Greg
1975 Alberg 30

Last edited by GregH; 03-31-2021 at 08:55 AM. Reason: speeling :)
Reply With Quote
The Following User Says Thank You to GregH For This Useful Post:
TimBSmith (04-01-2021)
  #54   IP: 165.225.20.178
Old 03-31-2021, 09:33 AM
Surcouf's Avatar
Surcouf Surcouf is offline
Afourian MVP
 
Join Date: May 2018
Posts: 290
Thanks: 220
Thanked 112 Times in 88 Posts
Quote:
Originally Posted by GregH View Post
Alrighty, getting my block back from the shop in 2 weeks!

I was informed today (sorry no pic yet) that when they were decking (is that the right term?) the block, they discovered a small crack on either side of a water jacket flow hole. They did the stitching of it and say it will be fine. I only came across this stitching thing about a month ago on here. This stitching will prevent any water seeping through the crack?

Though we don't use sealant with the head gasket, should I spread some along the length of the crack anyways?
if it is the stitching that was discussed a couples times on other threads in the past 2 years, there is in fact no more crack: they basically drill the whole crack out and fill the holes with these "special screws". Supposed to be leak-proof...

See previous thread with discussion on technique on Launchpad McQ engine
https://www.moyermarineforum.com/for...itching&page=4

amazing video here
https://www.youtube.com/watch?v=Pq0wfU4ZaKk
__________________
Surcouf
A nostalgic PO - Previously "Almost There" - Catalina 27 (1979)
Reply With Quote
  #55   IP: 67.169.215.221
Old 03-31-2021, 10:42 AM
ronstory's Avatar
ronstory ronstory is offline
Afourian MVP
 
Join Date: Feb 2016
Posts: 340
Thanks: 91
Thanked 159 Times in 119 Posts
Those cracks at the water passages are common on flat head engines. When I discovered those on my engine, the machine shop didn't miss a beat with lively commentary, "Those cracks are superficial, don't worry about it since you are gonna use sealant on the studs, unless you are dumb... and you don't *look* dumb."

... but the best quote was "If this was a Ford flathead, those types of cracks have a factory part number".
__________________
Thanks,
Ron
Portland, OR
Reply With Quote
  #56   IP: 192.186.122.174
Old 03-31-2021, 04:50 PM
GregH's Avatar
GregH GregH is offline
Afourian MVP
 
Join Date: Jun 2015
Location: Kingston, ON
Posts: 467
Thanks: 293
Thanked 59 Times in 51 Posts
Quote:
Originally Posted by ronstory View Post
Those cracks at the water passages are common on flat head engines. When I discovered those on my engine, the machine shop didn't miss a beat with lively commentary, "Those cracks are superficial, don't worry about it since you are gonna use sealant on the studs, unless you are dumb... and you don't *look* dumb."

... but the best quote was "If this was a Ford flathead, those types of cracks have a factory part number".
HA!

Those are great soundbites!
__________________
Greg
1975 Alberg 30
Reply With Quote
  #57   IP: 192.186.122.174
Old 03-31-2021, 04:51 PM
GregH's Avatar
GregH GregH is offline
Afourian MVP
 
Join Date: Jun 2015
Location: Kingston, ON
Posts: 467
Thanks: 293
Thanked 59 Times in 51 Posts
Quote:
Originally Posted by Surcouf View Post
if it is the stitching that was discussed a couples times on other threads in the past 2 years, there is in fact no more crack: they basically drill the whole crack out and fill the holes with these "special screws". Supposed to be leak-proof...

See previous thread with discussion on technique on Launchpad McQ engine
https://www.moyermarineforum.com/for...itching&page=4

amazing video here
https://www.youtube.com/watch?v=Pq0wfU4ZaKk
Yep, those are the discussions I was referring to. Always learnin!
__________________
Greg
1975 Alberg 30
Reply With Quote
Reply

Thread Tools
Display Modes

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
Video: A4 Overview After Overhaul captainmurph Overhaul 0 09-08-2020 12:04 PM
An Impromptu Overhaul GregH Overhaul 73 08-06-2017 07:10 PM
When to overhaul? ILikeRust Overhaul 11 03-15-2017 09:53 AM
First time overhaul of A4 Joslir Overhaul 7 01-14-2008 01:36 PM
Replace it? Overhaul it? Overhaul it! Motor John Overhaul 0 08-15-2006 01:41 AM


All times are GMT -4. The time now is 12:55 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2021, vBulletin Solutions, Inc.


Universalģ is a registered trademark of Westerbeke Corporation

Copyright © 2004-2021 Moyer Marine Inc.

All Rights Reserved