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radiator damage 1998 V70 T5 Topic is solved

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
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enotslim
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Year and Model: 1998 V70 T5T
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Re: radiator damage 1998 V70 T5

Post by enotslim » Mon Mar 20, 2017 5:29 pm

New radiator is in. Drove only 20 miles so far. Cold starts without any hesitation, engine runs very smoothly, temp gauge is rock solid, no coolant leak or change in level. I can't tell any difference compared to "before the flood". Test for combustion gases in coolant showed very minimal color change that, so I'm told, can be seen in engines that have never overheated and that run fine. So far so good, I guess.

Thanks for your advice. Hopefully, this will be stable.

Dave


Now:
1998 V70 T5
2004 XC70
Then:
1972 144
1988 240 Wagon

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abscate
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Re: radiator damage 1998 V70 T5

Post by abscate » Mon Mar 20, 2017 6:25 pm

Outstanding, red team


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enotslim
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Re: radiator damage 1998 V70 T5

Post by enotslim » Sat Mar 25, 2017 4:05 pm

This is partly so I remember. 15 miles highway driving today, including *very* strong acceleration on the onramp (turbo working well!), up to 80 mph for a short stretch and most of the time at 70-75 mph. Seems perfect. All I can say is I'm glad it was 9˚F ambient when the radiator blew. And thanks for all your advice. Still rolling, and not quite 140K yet.

Dave


Now:
1998 V70 T5
2004 XC70
Then:
1972 144
1988 240 Wagon

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theWIFES_S70
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Re: radiator damage 1998 V70 T5

Post by theWIFES_S70 » Sat Mar 25, 2017 4:10 pm

enotslim wrote:This is partly so I remember. 15 miles highway driving today, including *very* strong acceleration on the onramp (turbo working well!), up to 80 mph for a short stretch and most of the time at 70-75 mph. Seems perfect. All I can say is I'm glad it was 9˚F ambient when the radiator blew. And thanks for all your advice. Still rolling, and not quite 140K yet.

Dave
Dave, so glad to hear this. Another one continues to live!


1998 Volvo S70, N/A, 5-speed, 172K
1999 Nissan Altima, AT, 199K

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FLXC90
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Re: radiator damage 1998 V70 T5

Post by FLXC90 » Sun Mar 26, 2017 12:02 pm

MadeInJapan wrote:enotslim, if you haven't gathered from this threat, the thing is on our cars there isn't a head gasket compression (as an actual physical gasket)...the paint or roll on an anaerobic sealer between the head gasket and the upper engine... same sealer that is used on the cam cover.
That seems misleading. are you saying the head gasket is merely a shim that doesn't compress? or advising to use anaerobic sealant along with the head gasket.

http://www.volvopartswebstore.com/produ ... 35513.html


Current Volvos:
1998 V70 T5, 112k sat 5 years, slowly coming back to life
2004 XC90 T6 AWD: her DD, 160k, 20 on transaxle
1998 POS70 N/A: training aid, 229k, I think...ABS module

enotslim
Posts: 66
Joined: Mon Jan 18, 2016 10:05 am
Year and Model: 1998 V70 T5T
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Re: radiator damage 1998 V70 T5

Post by enotslim » Fri Apr 21, 2017 11:37 am

Update: Rad replaced one month ago after failure and a likely hot run for 2 x 7 miles in under 10˚F weather - detailed in above posts. Must have been pretty warm but the degree of overheating was never clear. Car has run fine since rad replaced. No overheating, not noisy, engine is "smooth", but about 500 cc coolant replaced during this time. Ten days ago noticed signs of water/oil mix on dip stick - see photo. It was quite cold and damp so I hoped it might be condensation rather than coolant leak into oil. Seems somewhat less now but not entirely gone. Coolant in the expansion tank does not look like it has oil from a leak. Now for the past few days I have a lifter click sound on cold start that abates entirely as engine warms up, after a minute or two. Then no noise until another cold start.

This can't be good, but how bad is it likely to be? Or can one tell. Is it clearly related to the rad failure or might it be independent? Can the worst possibilities be evaluated as a starting point?

Thanks.

Dave
2017-04-09 12.09.38_600px.jpg
2017-04-09 12.09.38_600px.jpg (54.84 KiB) Viewed 178 times


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1998 V70 T5
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1988 240 Wagon

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Re: radiator damage 1998 V70 T5

Post by abscate » Fri Apr 21, 2017 6:35 pm

Dave ..drop that oil out and see if it's condensate in the pan or if you have coolant milkshake.

I'm usually the optimist but I think you've got the milkshake.

:sad face:


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enotslim
Posts: 66
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Year and Model: 1998 V70 T5T
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Re: radiator damage 1998 V70 T5

Post by enotslim » Sat Apr 22, 2017 5:24 am

On cold start engine sounds fine and all seems well. Dipstick shows no milkshake before starting (top left photo). But, within ~30 seconds the "clicking" sound from the engine begins and continues until the engine warms. Then it's gone. Yesterday also noticed for the first time (but may have been happening previously) that as soon as the click begins the exhaust also turns white (right photo). When the engine warms and sound is gone the exhaust is also no longer white. Engine then seems to run fine from that point on. Temp gauge never budges from "normal" and performance, acceleration, etc. are not noticeably affected. The bottom left photo shows the dipstick after only about 30 seconds of white smoke - no milkshake. Didn't want to run longer this morning to see if milkshake occurs.

I think a little smoke on start up can be considered "normal", or at least not harmful, but this seems different. Seems like the timing of the click coinciding with the presumed coolant leak into the combustion chamber and everything seemingly fine when the engine is warm are big hints about what is failing. Could this be an effect of overheating after the failed radiator that does not involve the head gasket? Can a gasket leak when cold and tighten up when warm? And does the clicking indicate something else gone wrong with valves and/or lifters?

And is it likely that will driving this car once it is warm and behaving normally will cause more damage?

And what is the chance that this is unrelated to the radiator failure/overheating? The rad blew three weeks before the engine noise began. Everything seemed perfectly fine in the interim.

Dave
2017-04-22 06.24.23_600px.jpg
2017-04-22 06.24.23_600px.jpg (121.02 KiB) Viewed 165 times


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1998 V70 T5
2004 XC70
Then:
1972 144
1988 240 Wagon

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Re: radiator damage 1998 V70 T5

Post by abscate » Sat Apr 22, 2017 10:54 am

Ive got to noodle on this one - its got me stumped.


1 SWMBO for 30 years
2 Volvos
3 VWs
4 Careers
5 cats/dogs/gears
6 Perfect Ladies in waiting
7 Drivers
8 Boats- with a big pointy metal thing on top

1999 V70 T5M 56 2005 V70 NA M56 VWs BMW

enotslim
Posts: 66
Joined: Mon Jan 18, 2016 10:05 am
Year and Model: 1998 V70 T5T
Location: Boston, MA USA
United States of America

Re: radiator damage 1998 V70 T5

Post by enotslim » Sat Apr 22, 2017 3:11 pm

Thanks. I can use some help.

I believe this car did produce some white exhaust smoke on cold starts before the radiator failed, but less smoke than now. Some say this can be "normal" condensation for these cars. Weather is currently 40-50˚F with light rain on and off. Maybe this makes for lots of condensation. Plus, it doesn't smoke immediately on start, not till about 10-30 seconds later when the ticking also begins. Plus, I think it smoked less (but some) yesterday when I did a cold start in a large garage at work where it is warmer and much drier than outside. I would need to test this again to be certain.

The ticking is definitely new, however. Maybe it's not a valve lifter? Sounds a little like escaping gas rather than a metallic sound but I'm not at all certain I can tell the difference.

Could it be two issues, not cause and effect? Noisy valve lifter and condensation. Both of which happen when cold and resolve when the engine is warm. And can it be driven safely when warm and there is no noise or white exhaust smoke?

Dave


Now:
1998 V70 T5
2004 XC70
Then:
1972 144
1988 240 Wagon

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