New to forum, new CJ 6 owner - JeepForum.com
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post #1 of 5 Old 10-09-2019, 01:40 PM Thread Starter
Jethro294
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New to forum, new CJ 6 owner

Have a CJ-6 that I acquired, its a CJ-6,According to the Serial number it’s the last one in the 1960 year range according to the Kaiser catalog. I was told it’s a 1961 have to look at the title to see what it says. Was told it ran 20 years ago when parked in a barn in TN. Well after a little work the motor I found the motor is locked up, bottom end looks good but looking through the spark plug holes it looks pretty gummed up! Were the 4 cylinder engines prone to head or head gasket issues? Trying to just do what I need to do to get it Road worthy. Any advice would be appreciated. 647805ea-37b7-4801-a73c-5b672dfe7f36_1570649475553.jpgClick image for larger version

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post #2 of 5 Old 10-10-2019, 09:59 PM
Trapshooter
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Welcome to the JeepForum. There is a ton of info here. Your CJ6 is quite unique. I'm afraid I do not have any answers for you on the engine as my experience is with the V8's and I-6.

'86 CJ7, 258, Carter BBD, Nutter'ed, TeamRush'ed, T-18, Twin Sticked Dana 300, D30 Frt-Pwr Lok L/S-4.10, AMC 20 Rear-Mosers-Detroit Locker-4.10, 2.5 BDS Lift, 1" Body Lift, 33" Wild Country M/Ts, Black Spoke wheels

'45 CJ2A, L134 Go Devil, T-90 Tranny, Warn O/D, T-18 T-Case, Dana 25 Frt, Dana 41 Rear, 531st CJ made

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post #3 of 5 Old 10-10-2019, 11:10 PM
popascj7
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The first thing I noticed is that your vehicle ID plate is screwed on instead of riveted. I'm not sure if all used rivets but all that I have looked at were.
The first thing I would do for the engine is to drain the oil and leave the drain plug out. Put a clean drain pan under it and fill all the cylinders with your choice of magic rust remover and let it sit for several days to try and break the piston rings loose before trying to turn the engine over.
The purpose of the clean drain pan is to see what comes through the cylinders. Some times it doesn't take much to break the pistons loose and some times it doesn't matter what you do you'll wind up with a complete rebuild, broken rings and scored cylinders.
Welcome to the forum and good luck with your project.
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post #4 of 5 Old 10-11-2019, 12:06 AM
BagusJeep
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The F head Hurricane is a very easy engine to work on, not hugely powerful. It has great parts support and can be very cheap to rebuild. the head and valves were an improvement on the Go Devil engine with the inlet valve moved to the head but many parts are common. The heads are not particularly problemmatic, just the usual blown gaskets and leaks.

Onc you have the piston rings well soaked i find rocking it in 2nd gear is useful, if the brakes are not frozen of course. The gentle rocking is easier than trying to force it on the crank pulley. Sometimes they will give and everything is fine.
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1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
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post #5 of 5 Old 10-12-2019, 06:53 AM
Hurricane4
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Try KROIL in the cylinders to help break engine free.

http://www.kanolabs.com/

http://www.kanolabs.com/penLub.html#anchor173855

"The unbelievable we can do immediately . . . the impossible just takes a little longer."
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"Success is not final. Failure is not fatal. It is the courage to continue that counts"
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Jeeps I Have Owned in Year Order:
'61 CJ5, '63 CJ6, '78 CJ5, '79 CJ5 (Current), '79 CJ7 & '86 CJ7.
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