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Old 07-28-2020, 11:41 PM   #1
8587turbo
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Default Routine B230FT head gasket replacement

Just to be on the safe side when driving a 25-30 year old car, is it wise to change head gasket even there are no signs of leakage? I've seen them fail anywhere from 125-250k miles. Is head gasket age considered a major factor in failures ?
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Old 07-29-2020, 02:49 AM   #2
James M
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I don't consider them wear items, unless you overheat the motor or really abuse the poor thing it should be fine.
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Old 07-29-2020, 09:41 AM   #3
283SD
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Yes, they do wear out,overheating and abuse will cause them to fail. My wife's 240 wagon went 550K before it needed a head gasket, started leaking coolant out the side of the block. With a bi/metal engine the head expands more than the block and causes the gasket to wear out. BTW we have always run Mobile 1, when I looked in the bores I could still see the factory cross hatch in the bores, It now has almost 600K miles on it, body rust is going to kill it first.
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Old 07-29-2020, 11:58 AM   #4
culberro
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Quote:
Originally Posted by 8587turbo View Post
Just to be on the safe side when driving a 25-30 year old car, is it wise to change head gasket even there are no signs of leakage? I've seen them fail anywhere from 125-250k miles. Is head gasket age considered a major factor in failures ?
I would say that maintenance + age is a factor.
Cars that never had coolant changed, or are running on straight water will have more corrosion in the water passages of the head gasket.
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Old 07-29-2020, 01:20 PM   #5
dl242gt
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In my experience. I've needed to do the head gasket after 20 some years and high mileage. Usually a fail to the outside of the block from the coolant passages. Anywhere from 250k to 350k miles. I've done the head gasket on every red block that I've driven for a long time.
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Old 07-31-2020, 12:23 AM   #6
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Originally Posted by 283SD View Post
Yes, they do wear out,overheating and abuse will cause them to fail. ....
With a locally driven vehicle, I'd just monitor [place your palm over fill tank hole, when cold, and increase engine RPM...got pressure, you got a problem...too much pressure, and engine plug(s) might blow out...or on 740s/940s, heater valve may rupture, and leak water].

If a high mileage Volvo traveling cross country, I'd consider it.

I have replaced or renewed (cleaned professionally) radiators and fan clutches, which many owners neglect.
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