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01-13-2021, 08:47 PM | #21 | |
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Join Date: Apr 2018
Location: Mebane NC
Posts: 2,350
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Re: leaking head gasket?
Quote:
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01-14-2021, 07:39 AM | #22 |
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Join Date: Sep 2020
Location: Yorktown Virginia
Posts: 180
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Re: leaking head gasket?
Anything helps me. This is my first model a and has been a great education. I have only had it since September but really enjoy working on it and driving it. Put 1000 miles on it since I got it running in late October
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01-14-2021, 09:03 AM | #23 |
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Join Date: Jan 2016
Posts: 2,093
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Re: leaking head gasket?
I wouldn't go to a 5.5, but go to a 6.1 instead.
The cost is the same, but the performance is better. I originally had a 4.2, then changed it to a 5.5 and was very happy with the difference. Then changed to a 6.1 and was even happier. Before you install it, for piece of mind bring it to a machine shop and check for straightness. And yes, change out your studs. |
01-14-2021, 12:04 PM | #24 | |
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Join Date: Jan 2020
Location: SF Bay Area
Posts: 1,066
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Re: leaking head gasket?
Quote:
JayJay
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JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan |
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01-14-2021, 12:22 PM | #25 |
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Join Date: Apr 2018
Location: Mebane NC
Posts: 2,350
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Re: leaking head gasket?
The issue of babbit vs insert is sort of a red herring; what that argument is really about is the overall condition of the engine. Babbit bearings in good condition, with proper clearance, good rods and crank, etc., will handle 7:1 compression and higher no problem. The reason it gets framed like that is that, considering all the engines together, a babbit engine likely hasn't been overhauled as recently as an insert engine. The older the engine, the more likely it's had some wear, parts out of spec, etc. So you end up with a correlation between insert engines and handling high-compression well that tends to mislead about the actual causal connection.
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01-15-2021, 02:05 AM | #26 | |
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Join Date: Apr 2018
Location: Mebane NC
Posts: 2,350
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Re: leaking head gasket?
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Quote:
https://youtu.be/ibaPf0FQnZM Last edited by alexiskai; 02-12-2021 at 11:49 AM. |
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01-15-2021, 09:04 AM | #27 | |
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Join Date: Oct 2010
Location: 40 Mt.Vickery Rd. Southborough,MA 508-460-0733
Posts: 352
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Re: leaking head gasket?
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01-16-2021, 12:56 AM | #28 | |
Senior Member
Join Date: Jan 2016
Posts: 2,093
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Re: leaking head gasket?
Quote:
Babbits or inserts, a bad engine will have trouble with a 4.2 head. |
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01-16-2021, 10:30 AM | #29 | |
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Join Date: Jun 2010
Location: 34.22 N 118.36 W
Posts: 1,052
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Re: leaking head gasket?
Quote:
J
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As Carroll Smith wrote; All Failures are Human in Origin. |
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