Marking "Topic Solved" is functional again. It's the green check next to your post. BTW, please do use this when your question is answered and verified. Thanks!
Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!
S70 Engine
-
- Posts: 7
- Joined: Sun Feb 12, 2006 10:16 am
- Year and Model: 99 S70
- Location: NEPA
- Has thanked: 9 times
S70 Engine
Hey,
We’ve discussed briefly my issue with my 99 S70. My conundrum is that I’ve spent lots of money on some repairs and now I found I have a scored cylinder. Brief review.
Nov/16 Tune up resulted in broken plug in #5 cylinder. Removed head, found spark plug debris in valves. Removed and replaced both valves, lapped, reassembled. Later noticed high oil consumption. Mar/19 Suspected turbo, replaced turbo and PCV system. Oil consumption remained. July, burnt #5 cyl exhaust valve.
Removed and refurbished head with new exhaust valve. Noticed scoring in cyl 5.
Reassembled and running car with oil consumption. 1 qt/1000 miles.
I’ve got new drive train, turbo, head, exhaust system and many other consumable parts have been replaced. Body is without rust.
I’m considering a replacement engine for the oil consumption. Would you all rebuild what I have or buy a remanufactured unit?
We’ve discussed briefly my issue with my 99 S70. My conundrum is that I’ve spent lots of money on some repairs and now I found I have a scored cylinder. Brief review.
Nov/16 Tune up resulted in broken plug in #5 cylinder. Removed head, found spark plug debris in valves. Removed and replaced both valves, lapped, reassembled. Later noticed high oil consumption. Mar/19 Suspected turbo, replaced turbo and PCV system. Oil consumption remained. July, burnt #5 cyl exhaust valve.
Removed and refurbished head with new exhaust valve. Noticed scoring in cyl 5.
Reassembled and running car with oil consumption. 1 qt/1000 miles.
I’ve got new drive train, turbo, head, exhaust system and many other consumable parts have been replaced. Body is without rust.
I’m considering a replacement engine for the oil consumption. Would you all rebuild what I have or buy a remanufactured unit?
- E Showell
- Posts: 3214
- Joined: Thu Oct 16, 2008 4:00 pm
- Year and Model: V70R '06 AWD Auto
- Location: Long Valley, N.J.
- Has thanked: 35 times
- Been thanked: 86 times
Re: S70 Engine
Neither. Were it me, I'd try to find a lowish mileage used unit and replace with used.
I am certainly no engine rebuilder, but I haven't heard much about honing cylinders to remove scoring. Most of the time when these engines are opened up for valve replacement, people comment that the original cylinder machining marks are clearly visible still, even after a couple hundred thousand miles. Not sure whether you'd have to overbore to remove the scoring, or even whether oversize pistons are available.
I think Bob Elwood of Elwood Industries in FLA. (seller of replacement Volvo seat covers) may have rebuilt a white block.
You may want to reach out to him. Good luck and let us know what you end up doing.
On the other hand, if money were no object, I'd get a crate engine from Volvo if available, just know that when you clip that first
you won't get your money back on the insurance claim.
I am certainly no engine rebuilder, but I haven't heard much about honing cylinders to remove scoring. Most of the time when these engines are opened up for valve replacement, people comment that the original cylinder machining marks are clearly visible still, even after a couple hundred thousand miles. Not sure whether you'd have to overbore to remove the scoring, or even whether oversize pistons are available.
I think Bob Elwood of Elwood Industries in FLA. (seller of replacement Volvo seat covers) may have rebuilt a white block.
You may want to reach out to him. Good luck and let us know what you end up doing.
On the other hand, if money were no object, I'd get a crate engine from Volvo if available, just know that when you clip that first
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
- abscate
- MVS Moderator
- Posts: 23770
- Joined: Sun Feb 17, 2013 5:54 pm
- Year and Model: 99T5 ,99S70,2005V70
- Location: NYC, ALBANY NY
- Has thanked: 443 times
- Been thanked: 1339 times
Re: S70 Engine
I’ve got a decent short block up here. High miles but from a good runner
For a 1999 turbo you will need a pn engine with exhaust VVT to work with your ECU
For a 1999 turbo you will need a pn engine with exhaust VVT to work with your ECU
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
- volvolugnut
- Posts: 1549
- Joined: Sun Jan 19, 2014 9:51 am
- Year and Model: 2001 V70
- Location: Midsouth USA
- Has thanked: 123 times
- Been thanked: 174 times
Re: S70 Engine
Call me a red neck, but if it runs ok and looks ok, I can carry oil and put in oil every 1000 miles. At that consumption, it likely still does not embarrass you by smoking on acceleration.
volvolugnut
volvolugnut
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.
-
- Posts: 6917
- Joined: Wed Mar 31, 2010 9:54 am
- Year and Model: 2004 V70 2.5T
- Location: Omaha NE
- Been thanked: 164 times
Re: S70 Engine
This is waht I did when my 1998 S70 GLT with 190K had a burned valve #3 and trans losing reverse, I sold the car to a used car dealer for $300.
I bought a nice 2004 V70 with 100K for $4200.
On the long run, you are better off with a P2 car with 2.5T.
Don't sink money into P80, especially when the odo > 180K.
What is your odometer reading?
I bought a nice 2004 V70 with 100K for $4200.
On the long run, you are better off with a P2 car with 2.5T.
Don't sink money into P80, especially when the odo > 180K.
What is your odometer reading?
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
2005 XC90 2.5T 110K+
- E Showell
- Posts: 3214
- Joined: Thu Oct 16, 2008 4:00 pm
- Year and Model: V70R '06 AWD Auto
- Location: Long Valley, N.J.
- Has thanked: 35 times
- Been thanked: 86 times
Re: S70 Engine
On reflection, I'd part it out. That's likely your best economic return, though it may take some time.
The reason I would do so is threefold:. If you haven't already fixed the throttle body, you will need to do so eventually (XeModex rebuild runs close to $500), pretty soon there will be few buyers for P80 parts due to most of them coming off the road, and it will become increasingly difficult to source replacement parts if you are banking on running the car into the ground.
So, part out, or top up oil every 1k seem like your most sensible options.
The reason I would do so is threefold:. If you haven't already fixed the throttle body, you will need to do so eventually (XeModex rebuild runs close to $500), pretty soon there will be few buyers for P80 parts due to most of them coming off the road, and it will become increasingly difficult to source replacement parts if you are banking on running the car into the ground.
So, part out, or top up oil every 1k seem like your most sensible options.
Last edited by E Showell on Wed Jan 01, 2020 8:21 am, edited 1 time in total.
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
-
- Posts: 7
- Joined: Sun Feb 12, 2006 10:16 am
- Year and Model: 99 S70
- Location: NEPA
- Has thanked: 9 times
Re: S70 Engine
hey all, sorry, didn’t get notifications to your responses.
We’ve got 185000 on it. I’ve owned it since it’s had about 40,000 miles and have done nothing but run mobile one it it and routinely maintained it. Very little corrosion and other than oil consumption, runs strong. I’m wondering, with a scored #5 cyl, would oil consumption be due to increased crank case pressure from blow by at the rings during compression and combustion blowing some oil out the breather and then back into the intake manifold through the turbo?
I have been concerned about burning a valve again in a year or two but, maybe that wouldn’t be the case. Also, is there a plausible explanation for some sort of issue causing burning valves in this engine that I could keep ahead of such as fuel injectors, lousy gas etc? (I’m running premium fuel).
If I can get my moneys worth out of these repairs, (18 months, then I’ll be happy, if it makes it to 2024 that would be a blessing)
We’ve got 185000 on it. I’ve owned it since it’s had about 40,000 miles and have done nothing but run mobile one it it and routinely maintained it. Very little corrosion and other than oil consumption, runs strong. I’m wondering, with a scored #5 cyl, would oil consumption be due to increased crank case pressure from blow by at the rings during compression and combustion blowing some oil out the breather and then back into the intake manifold through the turbo?
I have been concerned about burning a valve again in a year or two but, maybe that wouldn’t be the case. Also, is there a plausible explanation for some sort of issue causing burning valves in this engine that I could keep ahead of such as fuel injectors, lousy gas etc? (I’m running premium fuel).
If I can get my moneys worth out of these repairs, (18 months, then I’ll be happy, if it makes it to 2024 that would be a blessing)
- E Showell
- Posts: 3214
- Joined: Thu Oct 16, 2008 4:00 pm
- Year and Model: V70R '06 AWD Auto
- Location: Long Valley, N.J.
- Has thanked: 35 times
- Been thanked: 86 times
Re: S70 Engine
My own, entirely unscientific suspicion with burned valves is that failing to replace front O2 sensor as a maintenance item at 100,000 miles is a contributor, as is low octane, generic gas use and overly extended oil change intervals.
P.S. #5 valve is not usually the one to go. Generally #2 or 3. I think most commonly #3.
Ok, reading back through I see that you've already burned one valve in that engine. Accordingly, I'd either keep running it as is and adding oil, or pull and replace with a used engine. Engine swap is going to be about 18 hrs labor charge from mechanic. Cylinder head is about 15. And, of course, if you DIY, the labor is "free."
P.S. #5 valve is not usually the one to go. Generally #2 or 3. I think most commonly #3.
Ok, reading back through I see that you've already burned one valve in that engine. Accordingly, I'd either keep running it as is and adding oil, or pull and replace with a used engine. Engine swap is going to be about 18 hrs labor charge from mechanic. Cylinder head is about 15. And, of course, if you DIY, the labor is "free."
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
- abscate
- MVS Moderator
- Posts: 23770
- Joined: Sun Feb 17, 2013 5:54 pm
- Year and Model: 99T5 ,99S70,2005V70
- Location: NYC, ALBANY NY
- Has thanked: 443 times
- Been thanked: 1339 times
Re: S70 Engine
Do you run light (5000 miles per year) or heavy (20,000 per year)?
It isqalmlst is almost always cost effective to repair a light running car vs buying a new set of problems.
My gut feel is valve burning seem pretty rare and uncorrelated. Evans factors above definitely will put things in your favour at low cost of repairs.
There are lots of examples here if people who burn valves, pull the head, replace just the one valve , rework the head, d drive another 100k
It isqalmlst is almost always cost effective to repair a light running car vs buying a new set of problems.
My gut feel is valve burning seem pretty rare and uncorrelated. Evans factors above definitely will put things in your favour at low cost of repairs.
There are lots of examples here if people who burn valves, pull the head, replace just the one valve , rework the head, d drive another 100k
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
-
- Similar Topics
- Replies
- Views
- Last post
-
- 17 Replies
- 1172 Views
-
Last post by abscate
-
- 4 Replies
- 2003 Views
-
Last post by rigo3t
-
- 25 Replies
- 14486 Views
-
Last post by ADriggs26
-
- 3 Replies
- 503 Views
-
Last post by MadeInJapan
-
- 27 Replies
- 1344 Views
-
Last post by bmdubya1198