Rick's Free Auto Repair Advice

Posts Tagged: valve spring removal tool

Replace valve stem seals

How to replace valve stem seals As valve stem seals age they form cracks. An engine develops the highest vacuum at idle. With cracked or worn valve stem seals, that high vacuum can suck oil down the valve guide and into the engine. In the old days, you could spot that condition a mile away. A driver would be driving down the road and as he approached a stop light and took his foot off the gas, you’d see a large puff of blue smoke coming out of the exhaust. … Read More

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