#76
IP: 32.211.28.40
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Why do we happily spend hours trying to save a part that can be replaced with new for $0.25 (or even $25.00)?
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#77
IP: 165.225.38.128
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the keepers? I was not trying to save them, I was just trying to remove the valves without bending them or damaging the guides
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#78
IP: 165.225.38.128
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So head is saved! Machine shop was able to drill out the 2 rusted / broken spark plugs, without any damages to the threads, so no damn helicoils!
Head clean, flatness checked within spec. Done in less than 2 days, 70$. R&R Machining in Warwick, RI. great shop! Spent 30 minutes with shop owner chatting and going through all the weird engines and motors they have all around the shop, some very nice and rare pieces (not just muscle cars blocks, even if these are nice). So thank you Jcwright for your offer, but it seems that I will not need your spare head!!! I need to cut those bolts now, take the flywheel and the cover out. At that point, there should be no more disassembly required. Time to seriously start cleaning, stripping, painting etc... the fun part no?
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#79
IP: 100.40.58.241
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Hello Surcouf.
Well I keep trying to loan or give away tools and parts from my rebuild, so far without success. I'm glad to hear that you could salvage your head. Mine will have to wait to be adopted by anyone else in RI or nearby who is looking for one. Best regards, Jack. |
#80
IP: 104.129.196.207
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Quote:
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#81
IP: 128.148.231.35
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The tool you mention was one that I didn't buy, though in hindsight it seems penny-wise and pound foolish.
Two items that may be of use are the stud pullers (both sizes that are needed) and an engine stand (with the modifications needed for the A4). Send me a PM if you are interested in borrowing them. Jack. |
#82
IP: 108.34.135.205
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The nice way did not work... so Dremel was out. Flywheel cover came nicely, the 2 broken bolts too.
Baby steps....
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#83
IP: 108.34.135.205
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Lazy...
So after 2.5 months doing nothing on the engine, it is more than time to go back to it. My fault, as I tried to train for a marathon (mid-life crisis), and take care of an engine, on top of the daily job => failure. But a famous virus cancelled the marathon, so I felt I had to get back on the engine...
I have only started with the misc parts requiring painting... so multiple cleaning and degreasing, rust prevention, and first coat of POR 15 done in the basement (my wife hates me). Not sure what is inside that paint... but one of my plastic glove got damaged at one point and I just cannot get that paint away from my hand... mineral spirit, scrubbing etc ... none of the usual trick is efficient. A good sign !!
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#84
IP: 108.34.135.205
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Paint questions for you guys: after painting do you remove paint from the spark plug seat? Do you clean the plug threads for any paint that may have leaked?
Thank you!!
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#85
IP: 70.185.132.167
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The spark plugs are grounded to the head. Having clean threads and seats for the plugs can only help with proper grounding.
Acetone on a rag will remove almost any paint from your hands. ex TRUE GRIT |
#86
IP: 165.225.38.211
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Questions for you guys: when I removed the engine head, it was hell to lift the head out of the studs. So regarding the cleaning of all "through holes" that go through the head for the studs, I would like to make sure to remove any crap (paint, gunk, corrosion etc..) from the previous 40 years (and also any fresh paint):
- how do you clean the holes in the head where all the head studs go through? acetone+brush? - does somebody know the exact diameter of those holes? what drill bit should I run there? thank you !!!
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#87
IP: 134.134.139.74
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... not POR-15, you will need to wear it off. I now always use gloves with that stuff.
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Thanks, Ron Portland, OR |
#88
IP: 165.225.38.211
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that is what I am discovering with my black and white hands at the office! How do you clean your brushes after using POR 15? is Acetone good enough for that? Mineral Spirit failed...
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#89
IP: 69.250.111.245
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When I painted my engine, I left an old set of plugs in the head to keep the threads clean. I bet if you just screw a spark plug in and out a few times, it will clean the threads right out.
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-Shawn "Holiday" - '89 Alura 35 #109 "Twice Around" - '77 C-30, #511 with original A-4 & MMI manifold - SOLD! (no longer a two boat owner!!) |
#90
IP: 134.134.137.77
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Quote:
Also, if you let POR-15 get in the lip of the can where the metal lid attaches, you can forget about opening it again. What I do when i open the gallon, I have the metal quart paint containers from home depot on hand. Then I paint everything I can possibly paint and then pour the remnants carefully into the fresh quart containers and seal. Good for about a year if done well. if you are using the quarts, keep a couple of the metal pint containers on hand as well.
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Thanks, Ron Portland, OR Last edited by ronstory; 03-09-2020 at 08:12 PM. Reason: typos |
#91
IP: 45.49.35.172
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My two cents and a question
$0.02: I noticed the copper scavange-type tube connector from your fuel pump to the carb. You may consider replacing that copper tube with a fuel line and a polishing filter as shown here: https://moyermarine.com/mmi360/r1.html
Question: (and forgive my ignorance) will you be painting over the POR-15? Could you if you wanted to or no? |
#92
IP: 108.34.135.205
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Quote:
Regarding paint, yes I plan to paint over, I purchase a couple cans to MM, without even checking the detailed paint spec from POR 15, but I am pretty sure I read a couple other overhaul threads mentioning they did it without issue. This is what I found on POR website. So hopefully it will work. https://www.por15.com/POR-15-FAQS_ep_61.html
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
The Following User Says Thank You to Surcouf For This Useful Post: | ||
Ando (03-09-2020) |
#93
IP: 108.34.135.205
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Quote:
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#94
IP: 192.186.122.174
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Quote:
I wouldn't do it without a proper tie coat for the POR or it might just be flaking off much sooner than one wants.
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Greg 1975 Alberg 30 |
#95
IP: 155.186.124.219
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Painting parts
I've always painted heads with some old plugs installed, easier than taping off.
I also "usually" place a piece of dowel or an old bolt/stud in any threaded holes, again easier than taping off. Dave Neptune |
#96
IP: 165.225.38.121
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questions
the issues and questions continue...
Question 1: How do you clean the valve guides, before installing teh valves back? What product? I have a bunch of thin brushes (Harbor Fr**ght kit), plastic and metal - which ones should I use? Question 2: Same question for the head "through holes" where studs go through. I guess I can use metal brushes here wthout any concern (I do not care of "scoring / marking those ones as much as the valves guides) while I was chiseling / hammering / removing rust from by block yesterday, something that looked like either JB weld / very old plug or bolt broke loose: it is located behind the alternator-accessory pulley, and is a hole going into the "water jacket compartment" (so located at the bottom left side of that compartment, if I face the water jacket side plate). I have seen on this blog several engine that had a nipple installed in that hole to flush the water system for maintenance. I tried to clean as much as I could, and passed a 5/16 tap-thread, but I am not sure if I actually cleaned previous thread, or if it was just making its way through rust concretion. So Question 3: what is the original thread for that hole? Should I install a brass plug here? what would you recommend to do here to avoid any leak? Thank you !!!
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#97
IP: 24.152.132.140
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Q3:
1/8" pipe thread (NPT 1/8-27)
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Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others |
#98
IP: 108.34.135.205
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So this is bad. I will make a dedicated thread for that one
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) Last edited by Surcouf; 03-15-2020 at 10:57 PM. |
#99
IP: 174.242.139.134
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So the compromised thread on the jacket taken care of by the machine shop, at the same time as a broken screw in the bell housing. Required to load the engine in the car again... but worth it.
So short question for you guys: pictures of valve seat with and without lapping. Is that enough? Or should I go for more lapping?
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Surcouf A nostalgic PO - Previously "Almost There" - Catalina 27 (1979) |
#100
IP: 134.134.139.74
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More lapping is needed. You can still see pitting on the surface.
https://www.youtube.com/watch?v=l8_dVrKz5BI Look at the video at around 2:30 for the valve (not the best image) and at 3:15 for what the valve seat should look like. I have a similar drill attachment, works great and is fast. Just remember to put lots of oil on the valve stem. Good luck! You are now at the fun stage. Edit: Did you have the shop cut the valve seat for you?
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Thanks, Ron Portland, OR Last edited by ronstory; 03-22-2020 at 01:16 PM. Reason: typos |
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