Phase one...this is not going to be fun...
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From: Hachiroku ハチロク on 18 Jul 2010 15:06 Some people look at replacing a head gasket and say, No Prob! This is the first time I've taken a car apart to this extent, so I'm taking it very slowly. First I waited to get the gasket so I didn't have the engine all apart as an invitation to chipmunks as a new home. The head gasket got here wednesday, and I began the process by spraying everything with GM Rust Penetrant and Heat Riser Lubricant. Probably the best thing GM ever sold, $9-12 a can. It works really well. Today I began the disassembly. I am particularly worried about snapping bolts on a 22 year old engine, so care and caution rule. I got the heat shield off the exhaust manifold, only rounding off one nut in the process. Vice grips did the reat, and it came right off. One of my biggest worries is getting the exhaust manifold itself off without snappin studs. I soaked them last night, and again today. All but one of them came off no prob, on is buried under the distributor so I can't get a wrench in their, and one started coming out, a little slowly... I took it calm and gentle, and then noticed the stud was unscrewing from the head! I reseated it carefully and started again. Again it bound up and felt 'gummy' so I added a little more lubricant, reseated it gently and started over. This time the nut came off the stud with just a small amount of effort, and didn't snap!!! Depending on how firmly the studs are installed in the engine, I may try replacing them with new ones, although at 22 years old I doubt *I* will be doing another headgasket on this car, and if I can find a decent one I may replace the exhaust manifold completely...
From: FatterDumber& Happier Moe on 18 Jul 2010 15:22 Hachiroku ハチロク wrote: > Some people look at replacing a head gasket and say, No Prob! > > This is the first time I've taken a car apart to this extent, so I'm > taking it very slowly. > > First I waited to get the gasket so I didn't have the engine all apart as > an invitation to chipmunks as a new home. The head gasket got here > wednesday, and I began the process by spraying everything with GM Rust > Penetrant and Heat Riser Lubricant. Probably the best thing GM ever sold, > $9-12 a can. It works really well. > > Today I began the disassembly. I am particularly worried about snapping > bolts on a 22 year old engine, so care and caution rule. > > I got the heat shield off the exhaust manifold, only rounding off one nut > in the process. Vice grips did the reat, and it came right off. > > One of my biggest worries is getting the exhaust manifold itself off > without snappin studs. I soaked them last night, and again today. All but > one of them came off no prob, on is buried under the distributor so I > can't get a wrench in their, and one started coming out, a little slowly... > I took it calm and gentle, and then noticed the stud was unscrewing from > the head! I reseated it carefully and started again. Again it bound up and > felt 'gummy' so I added a little more lubricant, reseated it gently and > started over. This time the nut came off the stud with just a small amount > of effort, and didn't snap!!! > > Depending on how firmly the studs are installed in the engine, I may try > replacing them with new ones, although at 22 years old I doubt *I* will be > doing another headgasket on this car, and if I can find a decent one I may > replace the exhaust manifold completely... > > Couldn't you disconnect the exhaust pipe from the exhaust manifold and then remove the head with the manifold attached, then remove the exhaust manifold from the head?
From: Hachiroku ハチロク on 18 Jul 2010 20:59 On Sun, 18 Jul 2010 14:22:26 -0500, FatterDumber& Happier Moe wrote: > Hachiroku ハチロク wrote: >> Some people look at replacing a head gasket and say, No Prob! >> >> This is the first time I've taken a car apart to this extent, so I'm >> taking it very slowly. >> >> First I waited to get the gasket so I didn't have the engine all apart as >> an invitation to chipmunks as a new home. The head gasket got here >> wednesday, and I began the process by spraying everything with GM Rust >> Penetrant and Heat Riser Lubricant. Probably the best thing GM ever sold, >> $9-12 a can. It works really well. >> >> Today I began the disassembly. I am particularly worried about snapping >> bolts on a 22 year old engine, so care and caution rule. >> >> I got the heat shield off the exhaust manifold, only rounding off one nut >> in the process. Vice grips did the reat, and it came right off. >> >> One of my biggest worries is getting the exhaust manifold itself off >> without snappin studs. I soaked them last night, and again today. All but >> one of them came off no prob, on is buried under the distributor so I >> can't get a wrench in their, and one started coming out, a little slowly... >> I took it calm and gentle, and then noticed the stud was unscrewing from >> the head! I reseated it carefully and started again. Again it bound up and >> felt 'gummy' so I added a little more lubricant, reseated it gently and >> started over. This time the nut came off the stud with just a small amount >> of effort, and didn't snap!!! >> >> Depending on how firmly the studs are installed in the engine, I may try >> replacing them with new ones, although at 22 years old I doubt *I* will be >> doing another headgasket on this car, and if I can find a decent one I may >> replace the exhaust manifold completely... >> >> > > Couldn't you disconnect the exhaust pipe from the exhaust manifold and > then remove the head with the manifold attached, then remove the exhaust > manifold from the head? I suppose you could, but I would bet those would be the bolts even more prone to snapping...
From: C. E. White on 19 Jul 2010 07:58 "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message news:GgI0o.30963$dx7.4790(a)newsfe21.iad... > I took it calm and gentle, and then noticed the stud was unscrewing from > the head! I reseated it carefully and started again. Again it bound up and > felt 'gummy' so I added a little more lubricant, reseated it gently and > started over. This time the nut came off the stud with just a small amount > of effort, and didn't snap!!! I am curious - why didn't you just unscrew the stud from the head? I don't see the point in all the work you did to get the nut off instead of the nut plus stud. Ed
From: Hachiroku ハチロク on 19 Jul 2010 16:50
On Mon, 19 Jul 2010 07:58:05 -0400, C. E. White wrote: > > "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message > news:GgI0o.30963$dx7.4790(a)newsfe21.iad... > >> I took it calm and gentle, and then noticed the stud was unscrewing from >> the head! I reseated it carefully and started again. Again it bound up and >> felt 'gummy' so I added a little more lubricant, reseated it gently and >> started over. This time the nut came off the stud with just a small amount >> of effort, and didn't snap!!! > > I am curious - why didn't you just unscrew the stud from the head? I don't > see the point in all the work you did to get the nut off instead of the nut > plus stud. > > Ed Just wanted to try and get it apart the way it was /supposed/ to come apart. If something had snapped, I knew the stud was already loose. |