 In Line 4 - The most Peculiar Problem, A bit off topic, however, I have run out of options |
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| ctc911ctc |
 May 6 2021, 12:00 PM
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#1
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Senior Member  Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States 
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All Teeners
You have helped me rebuild the '74 2.0. Every system has been rebuilt with your assistance. My son has purchased a 1991 Ranger. It blew a head gasket. Cyl 1 had NO pressure. We proceeded to take off the head took off all 10 bolts ( 2.3L Pinto/Mazada engine) off the head.... Hhhhmmm, does not budge - let's get the Wood Mallet That did not work (IMG:style_emoticons/default/confused24.gif) Hammer and wood? No, did not budge (IMG:style_emoticons/default/confused24.gif) Hand Sledge and wood No Did not budge (IMG:style_emoticons/default/confused24.gif) Then I put a bolt in the head on the front and on the block, tood a very large bearing spreader and cranked it until the bolts started to bend AND THEN hit it with the hand sledge Will not budge (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) Within a RANGER forum a guy said that he had seen these WELDED together - I see no weld marks......really welded??? About to try the SNAKE IN THE HOLE trick using rope into the sparkplug hole once I get the CAM disconnected............... Any thoughts from the teener world please? (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/pray.gif) |
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Replies(1 - 15)
| Beebo Kanelle |
May 6 2021, 12:12 PM
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#2
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Member Group: Members Posts: 248 Joined: 22-November 12 From: Houston, Texas Member No.: 15,177 Region Association: Southwest Region
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I assume you have the 2.3 OHC 4cyl engine, correct?
that should be an all iron engine recheck and make sure all the bolts are removed... you might want to scope each cylinder to make sure any potential catastrophic failure didn't wedge / weld itself into a convoluted matrix of unremovability. |
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| ctc911ctc |
May 6 2021, 12:59 PM
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#3
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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New name for the truck - convoluted matrix of unremovability.
Will check and report! QUOTE(Beebo Kanelle @ May 6 2021, 01:12 PM)  I assume you have the 2.3 OHC 4cyl engine, correct? that should be an all iron engine recheck and make sure all the bolts are removed... you might want to scope each cylinder to make sure any potential catastrophic failure didn't wedge / weld itself into a convoluted matrix of unremovability. |
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| mrholland2 |
May 6 2021, 01:44 PM
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#4
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Senior Member Group: Members Posts: 750 Joined: 7-September 11 From: Santa Maria,CA Member No.: 13,531 Region Association: Central California |
As many of those engines were made, surely there are some good used ones around.
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| ctc911ctc |
May 6 2021, 01:49 PM
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#5
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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Yes, Do not want to pull and replace - but may end up there...... Thanks ! CTC QUOTE(mrholland2 @ May 6 2021, 02:44 PM) As many of those engines were made, surely there are some good used ones around. |
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| Jack Standz |
May 6 2021, 02:07 PM
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#6
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Member Group: Members Posts: 278 Joined: 15-November 19 From: Happy Place (& surrounding area) Member No.: 23,644 Region Association: None |
Not sure about a 1991, but the early 2000's 2.3 liter had a bolt hidden behind the belt pulley, so you have to remove the pulley to get to it before you can remove the guard. There are also two dowel pins between the head and block. A rubber or wooden mallet and some well-placed hits by the dowels may free it up.
Either way, count the head bolts and confirm you got them all removed. And, you can always get a bigger hammer (IMG:style_emoticons/default/biggrin.gif) . |
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| ctc911ctc |
May 6 2021, 02:42 PM
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#7
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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Thank you - but no luck.....yet
I read your post and SPRINTED to the car to look for the hidden bolt....no luck...... There are 10 head bolts - all are removed..... Will update as I move along QUOTE(Jack Standz @ May 6 2021, 03:07 PM) Not sure about a 1991, but the early 2000's 2.3 liter had a bolt hidden behind the belt pulley, so you have to remove the pulley to get to it before you can remove the guard. There are also two dowel pins between the head and block. A rubber or wooden mallet and some well-placed hits by the dowels may free it up. Either way, count the head bolts and confirm you got them all removed. And, you can always get a bigger hammer (IMG:style_emoticons/default/biggrin.gif) . |
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| Retroracer |
May 6 2021, 03:00 PM
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#8
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Senior Member Group: Members Posts: 614 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest
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FWIW, an old trick we used to use with outboard motors with recalcitrant heads that were exposed to salt water:
Bolt/weld or otherwise attach a hook to the head and throw a strap around an overhead beam (or engine hoist, tree limb, etc,.),then tighten said strap such that gravity is extending some force - not the entire weight of the vehicle! - but some constant tension there, then leave overnight and come back and check in the morning. Usually the constant pressure over time in conjunction with overnight thermal cycling persuades the head gasket to give up its life... - Tony |
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| ctc911ctc |
May 6 2021, 03:21 PM
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#9
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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I installed a beam in my garage that I have not used yet - will use that this weekend - need to get this out of the garage. Thank you
 QUOTE(Retroracer @ May 6 2021, 04:00 PM) FWIW, an old trick we used to use with outboard motors with recalcitrant heads that were exposed to salt water: Bolt/weld or otherwise attach a hook to the head and throw a strap around an overhead beam (or engine hoist, tree limb, etc,.),then tighten said strap such that gravity is extending some force - not the entire weight of the vehicle! - but some constant tension there, then leave overnight and come back and check in the morning. Usually the constant pressure over time in conjunction with overnight thermal cycling persuades the head gasket to give up its life... - Tony |
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| Front yard mechanic |
May 6 2021, 04:13 PM
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#10
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Senior Member Group: Members Posts: 1,169 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None
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did you remove the intake ? That makes it easier ,power steering off?
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| ctc911ctc |
May 6 2021, 07:52 PM
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#11
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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Yes, and Yes, bare head and block
QUOTE(Front yard mechanic @ May 6 2021, 05:13 PM) did you remove the intake ? That makes it easier ,power steering off? |
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| wonkipop |
May 7 2021, 12:05 AM
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#12
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Advanced Member Group: Members Posts: 4,369 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille
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so its bolts, not studs?
i've helped a mate get the head off an alfa gtv that was stuck. but that was because the head was actually stuck to the studs. we had to conjure up a home-made tool similar to a factory tool we had a photo of. plate bolted around block and fitted over head and you screwed threaded rods down into the central spark plug holes. nuts fitted to threaded rod below plate were then slowly wound up a quarter turn per day evenly. it took about 2 weeks of this treatment before the head popped. the head had "welded" itself to the studs inside the tubes where the studs pass through. seems it happens a lot with old alfas. but if its not studs and all the bolts are out, dunno. i had to do the head gaskets on a citroen prv 6. bolted. both popped cleanly off with gentle-lish taps from a soft mallet. usually do due to the head gasket. but then again a failed head gasket will usually let you get the head off easily. |
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| tom.esh |
May 7 2021, 05:25 AM
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#13
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Member Group: Members Posts: 63 Joined: 6-March 14 From: Canton Ohio Member No.: 17,083 Region Association: North East States
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Maybe put a couple of head bolts in very loose. Try cranking it over to use the compression in your favor. Just a thought.
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| ctc911ctc |
May 7 2021, 07:01 AM
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#14
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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Thanks for all of the thoughtful responses - the head is attached with Bolts. They seem to be designed to stretch, the web site says use once, etc.
I will hook it to the beam today with perhaps 1000lbs of pull from above......will report back soon. Thank you TEENERS! |
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| ssuperflyoldguy |
May 7 2021, 11:35 AM
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#15
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Member Group: Members Posts: 173 Joined: 15-November 15 From: NorCal - East Bay Baby! Member No.: 19,364 Region Association: None |
Had the same prob with huge Gardener diesel head - took valve train off but leave head bolts in, piston all the way at the bottom of stroke - pressurized with compressed air thru injector (you would do thru spark plug hole) or if you were really serious you could do the same w grease. Careful - could be a quite dangerous pressure release - heat up w blo torch and/or smack w hammer would prob help
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| Shivers |
May 7 2021, 12:52 PM
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#16
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Senior Member Group: Members Posts: 2,410 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
It's a cast iron engine, so you could try the flat blade screwdriver last resort method. The locating dowel pins can rust the hole thing together, so if the drop kick from the beam doesn't work, it may need a more local impact to get them to let go. I actually use a chisel when I must. Right at the head gasket. Good luck
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