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Seafoam cured my ticking lifter?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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ckrussell
Posts: 46
Joined: 23 November 2010
Year and Model: 850 1994
Location: Bethany

Re: Seafoam cured my ticking lifter?

Post by ckrussell »

s70glt novice[Will] wrote:try it rspi, the 1/3 gas, intake and crank. itll help. dont let the idle die, let it sit for 15 minutes, and then DRIVE to blow all that crap out the exhaust. And to OP, yes it probably helped. but on your next oil change, i recommend doing all three. you get more power, better fuel economy, and it sounds better/ smoother depending on how bad it is. Do a couple 0-60 tests... ;) (or 0-100, space allowing)

and jblackburn is probably right, but it will help...a little. either way, if youve never done it, i think you should.

*EDIT* if its N/A you can free wheel it, not great for the car, but if you have a turbo, the higher pressure compounds the effect of blasting away carbon build up
For whatever reason I've been a little hesitant to run it through the vacuum. I may end up doing but thought I would go oil and gas and see what happened. I had gotten to the point where the non-stop ticking was driving me crazy and I was gonna pull the trigger on getting the other motor I have in. Kind of pumped up to see how long I can take this one now before I have to swap them out. Think I will add it to the crankcase prior to my next several oil changes. If you saw the buildup inside my engine you would understand...
1994 850 N/A 193,000 miles

jblackburn
MVS Moderator
Posts: 14043
Joined: 8 June 2008
Year and Model: 1998 S70 T5
Location: Alexandria, VA
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Post by jblackburn »

I think in the intake has the best effect. In the oil probably helps it clean out the bottom & top ends of the valves.

Slurp it in a little bit at a time through a vacuum hose (I use the one to the SAS control valve on my 98). The engine will stumble a little bit, and back off, let it recover for 3 seconds or so, and have at it again. Repeat til you suck in 1/3 of a can, let it idle for ~5-10 seconds, and shut the motor off for 15 minutes.

I start it, let it recover idle on its own (it will definitely stumble for a little bit), and then rev it a bit before driving.
'98 S70 T5
2016 Chevy Cruze Premier


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

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