Cracked Head

Okie_dave · 07-09-08, 05:52 PM

The head is cracked on my 81 FJ-60. Which heads are usable on this engine? 79 and up or 81 and up?

weak-link · 07-09-08, 10:30 PM

Quote:

Originally Posted by Okie_dave

The head is cracked on my 81 FJ-60. Which heads are usable on this engine? 79 and up or 81 and up?

75-87

75-80 need to be machined .100 to make up for the larger CC and use .100 Gr8 washers under the head bolts

Cruiserdrew · 07-09-08, 10:52 PM

I don't really know the years, but any of the heads that came with the flat top pistons should work, so that's 81 and up.

Or you could mess with all that machine work as suggested by weak-link.

Did you have an overheat?

Okie_dave · 07-10-08, 06:55 AM

Yeah - long story. Smog pump locked up and when I opened it up - there was not much left inside except small bearings that were loose. Shortly after started overheating. Was losing water but nothing showed up outside the engine. Ran a compression check and #1 & 2 cylinders were about 20 pounds low. Water was lightly spraying out of the #2 cylinder. #2 had a crack in it that must have been leaking.

brew8 · 07-10-08, 07:25 AM

I would find one 81 and up to keep the lighter valve train, and the ease of use, even if you skin the other head you will loose a little compression, So pick one up and have it rebuilt, I think they have cost me less that a new toyota gasket set to be machined, Larry

Okie_dave · 07-10-08, 08:09 AM

Does anyone know of a way to tell from the serial number on the head if it is an 81 or newer?

zuluzeugma · 07-10-08, 08:16 AM

61040

Do a Search, the topic of head interghancability was covered in heavy detail several months back.

07-09-08, 10:52 PM	#3
Cruiserdrew KI6MIE Join Date: Mar 2003 Location: Sacramento, CA TLCA# 11734 Posts: 6,737	I don't really know the years, but any of the heads that came with the flat top pistons should work, so that's 81 and up. Or you could mess with all that machine work as suggested by weak-link. Did you have an overheat? __________________ Andrew 1971 FJ-40 Rubicon tested 1976 FJ40 RIP 1984 FJ-60 H55f, 4.11, OME, Daily Driver 1989 FJ-62 117k-son's driver for now. 1997 FZJ-80 Factory sub-tank, and other tricks

07-10-08, 06:55 AM	#4
Okie_dave IH8MUD Regular Join Date: Jan 2005 Location: Tulsa, OK TLCA# 16598 Posts: 410	Yeah - long story. Smog pump locked up and when I opened it up - there was not much left inside except small bearings that were loose. Shortly after started overheating. Was losing water but nothing showed up outside the engine. Ran a compression check and #1 & 2 cylinders were about 20 pounds low. Water was lightly spraying out of the #2 cylinder. #2 had a crack in it that must have been leaking. __________________ Dave Stinchcomb Green Country Cruisers 1981 FJ60 1976 FJ40 1966 FJ40

07-10-08, 07:25 AM	#5
brew8 IH8MUD Addict Join Date: Apr 2004 TLCA# 7165 Posts: 747	I would find one 81 and up to keep the lighter valve train, and the ease of use, even if you skin the other head you will loose a little compression, So pick one up and have it rebuilt, I think they have cost me less that a new toyota gasket set to be machined, Larry __________________ Larry Brewster, TLCA 7165, Billings, MT

07-10-08, 08:09 AM	#6
Okie_dave IH8MUD Regular Join Date: Jan 2005 Location: Tulsa, OK TLCA# 16598 Posts: 410	Does anyone know of a way to tell from the serial number on the head if it is an 81 or newer? __________________ Dave Stinchcomb Green Country Cruisers 1981 FJ60 1976 FJ40 1966 FJ40

07-10-08, 08:16 AM	#7
zuluzeugma Search 1st, THEN ASK Join Date: Sep 2002 Location: Kilgore, TX Posts: 861	61040 Do a Search, the topic of head interghancability was covered in heavy detail several months back. __________________ 72' FJ55 - SOA, SR, DB, FJ62 PS, Webber, Header, H.E.I., 37 X 12.5 X 15 MT/R's, Savanah-heat air freshener. 83' FJ60 - Mint Condition which is now FOR SALE 07' FJC - Atrac Hack - DD 03' Matrix Xrs - It's her's 08' Tundra, 4.7 2WD - Company Truck

07-09-08, 05:52 PM	#1
Okie_dave IH8MUD Regular Join Date: Jan 2005 Location: Tulsa, OK TLCA# 16598 Posts: 410	Cracked Head The head is cracked on my 81 FJ-60. Which heads are usable on this engine? 79 and up or 81 and up? __________________ Dave Stinchcomb Green Country Cruisers 1981 FJ60 1976 FJ40 1966 FJ40

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