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im in somewhat of the same boat, have an engine with blown head gasket, and would like some input on this as well. thanks guys
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Measure the bore at the bottom of each cylinder in 2 or 3 directions with a inside micrometer, do the same at the top of each cylinder (abt. 1/2" from top of deck), compare the differences, if top measurements are .004" or more larger than bottom do a bore job.
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If you're going to use an MLS type head gasket, be sure and have your head and block machined to the right RA spec.
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Originally Posted by good2go
(Post 5537535)
If you're going to use an MLS type head gasket, be sure and have your head and block machined to the right RA spec.
Tomorrow I'm going to remove the pistons and see what the deal is with the bearings........hopefully they are not spun |
Originally Posted by Sup2jzgte
(Post 5537757)
Yeah I do plan on using a MLS HG...........this might be a ridiculous question but what is RA spec?
Tomorrow I'm going to remove the pistons and see what the deal is with the bearings........hopefully they are not spun reference: http://www.cometic.com/faq.aspx#q4 Additional info: http://www.arrowheadradiator.com/hea...et_failure.htm BTW, good luck with the bearings :thumbup: |
Originally Posted by good2go
(Post 5538114)
Per Cometic: " A surface finish of 50 RA (roughness average) or finer, is recommended for a proper gasket seal. Anything rougher may conflict with the gasket design. "
reference: http://www.cometic.com/faq.aspx#q4 Additional info: http://www.arrowheadradiator.com/hea...et_failure.htm BTW, good luck with the bearings :thumbup: I havent had a chance to check the bearings yet, to many graduations lol. Any thoughts on if the issue in the last 2 pictures is fixable? This is the "PLAN"............which will probably not go as it is supposed to lol, but hopefully it works out lol. In the next few days I'm going to break down the block and see if there are any spun bearings, if not I'm going have the shop make sure all is well with both the head and bottom end. Once its all decked the cylinders will honed.........if the bearings are fine I'm not going to have the crank touched because of the HP range I'm looking for. Is there anything you can think of to have done at the shop? I want this engine to last atleast 80k miles because its going to be a daily driver. I'm pretty sure I'm going to go with the TT HG but not 100% sure just yet. If I put the TT gasket on and drove around for a bit with the engine completely stock would should I except? |
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