How to rebuild an engine
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| − | Hi fellows, I'm the old techinspector1 here to share some information with you about oils, flat tappet camshafts and break-in procedures for them. The following is copied from a post I wrote for another auto enthusiast forum where we were talking about the oil companies changing oil formulations and the | + | Hi fellows, I'm the old techinspector1 here to share some information with you about oils, flat tappet camshafts and break-in procedures for them. The following is copied from a post I wrote for another auto enthusiast forum where we were talking about the oil companies changing oil formulations and the flat tappet camshaft failures we have experienced as a result. |
Fellows, we are the victims of technology marching on. Oil formulations are being changed due to pressure from the OEM's and EPA. Zinc and phosphorus tend to coat O2 sensors and plug catalytic converters resulting in warranty claims as well as contributing to dirty exhaust emissions. The oil companies have no choice, they have to bow to pressure from the powers that be. | Fellows, we are the victims of technology marching on. Oil formulations are being changed due to pressure from the OEM's and EPA. Zinc and phosphorus tend to coat O2 sensors and plug catalytic converters resulting in warranty claims as well as contributing to dirty exhaust emissions. The oil companies have no choice, they have to bow to pressure from the powers that be. | ||
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2. Discuss using armored lifters with the tech person at your favorite grinder. These have a stellite face on the lifter crown that will resist scuffing. By the way, I often read posts by those who are building motors that they made a great deal on a cam and lifter set. There is no such thing as a "great deal" on cam and lifters. Little do they know that this is junk made offshore and that they will be buying a new set of cam and lifters shortly, as well as spending a few days tearing the motor completely apart to clean out the shrapnel. Yep, it was a great deal though. You might want to buy a set of these with the "great deal" cam and lifters.... | 2. Discuss using armored lifters with the tech person at your favorite grinder. These have a stellite face on the lifter crown that will resist scuffing. By the way, I often read posts by those who are building motors that they made a great deal on a cam and lifter set. There is no such thing as a "great deal" on cam and lifters. Little do they know that this is junk made offshore and that they will be buying a new set of cam and lifters shortly, as well as spending a few days tearing the motor completely apart to clean out the shrapnel. Yep, it was a great deal though. You might want to buy a set of these with the "great deal" cam and lifters.... | ||
| − | http://www.moroso.com/catalog/ | + | http://www.moroso.com/catalog/categorydisplay.asp?catcode=27006 |
3. Oil.... From what I've read, there are only a couple of oils left that will give protection to your new cam and lifters and even they are changing formulations as we speak. Crane Cams recommends Shell Rotella and an engine oil supplement containing extreme pressure lubricants such as General Motors EOS. The other oil that is touted by engine builders is 15-40 RPM Delo. | 3. Oil.... From what I've read, there are only a couple of oils left that will give protection to your new cam and lifters and even they are changing formulations as we speak. Crane Cams recommends Shell Rotella and an engine oil supplement containing extreme pressure lubricants such as General Motors EOS. The other oil that is touted by engine builders is 15-40 RPM Delo. | ||
| − | http://www.shell.com/home/Framework?. | + | http://www.shell.com/home/Framework?siteId=rotella-en&FC2=/rotella-en/html/iwgen/products/zzz_lhn.html&FC3=/rotella-en/html/iwgen/products/product_rotellamulti.html |
| − | http://www.sdparts.com/product/ | + | http://www.sdparts.com/product/1052367/GMEngineOilSupplimentEOS16ozBottle.aspx |
I've used GM EOS on every rebuild I've done except one and I wiped a lobe on that motor. Another additive that has been mentioned is Valvoline Synpower Oil Treatment. I've never used it, but it is said to have moly, boron, calcium, magnesium, phosphorus and zinc added to it. Sounds like a good multi-vitamin doesn't it. | I've used GM EOS on every rebuild I've done except one and I wiped a lobe on that motor. Another additive that has been mentioned is Valvoline Synpower Oil Treatment. I've never used it, but it is said to have moly, boron, calcium, magnesium, phosphorus and zinc added to it. Sounds like a good multi-vitamin doesn't it. | ||
http://www.valvoline.com/pages/produ...asp?product=21 | http://www.valvoline.com/pages/produ...asp?product=21 | ||
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