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Engine swap questions 850 Turbo into S70 T5 ..Update

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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byeboy
Posts: 391
Joined: 5 September 2011
Year and Model: 850R, 1997
Location: Texas

Re: Engine swap questions 850 Turbo into S70 T5 ..Update

Post by byeboy »

nitehawk55 wrote:Thanks for that Jimmy , great overview on proceedure and I'll be sure to make notes and diagrams as well as mark hoses , connectors and the like as it looks like lots of them and I'm sure I'll need to do that to make sure to find where they go.

I'll take the busted engine out first and then the good one . Likely the time to do the PVC service or see if it needs it . No oil leaks at all visable on the doner car , it runs fine but the check engine light is on for the first few minutes it runs so I should maybe try and get a trouble code on that before I start to pull it .

Funny , been several years since I've done an engine swap . Used to jump into it and think nothing of it , now I seem over cautious and a bit aprehensive (sp?) about doing it .

Used to pull the engines in my old Subaru's in 45 minutes without hardly breaking a sweat ! :mrgreen:

Have a supply of Fuel line, vacuum line, clips...and a supply of those little paper tags with wires on them to label parts...I also use paint markers and my own code (one dot, two dots, dot/stripe, etc.), get a couple different colors of those.
I would also look at this as a great time to examine axles, boots, steering rack etc. without that pesky engine in the way! (maybe compare yours to the donor..if their parts are cheap...or you may find buying entire car makes sense, just to return it back to salvage after 'pickin' its bones like a Thanksgiving Turkey' Lots of cars get sent to salvage soon after having $$$ spent on new parts, only to have others (like a transmission) then fail.

jimmy57
Posts: 6694
Joined: 12 November 2010
Year and Model: 2004 V70R GT, et al
Location: Ponder Texas
Has thanked: 4 times
Been thanked: 320 times

Post by jimmy57 »

I forgot something: the RH axle has to be removed. I undo the two bolts for the bearing retainer cap and slide axle over and out of trans and then wire it up to something to hold it there.

ManManOhMan
Posts: 124
Joined: 1 June 2013
Year and Model: 850 Turbo 1994
Location: chicago

Post by ManManOhMan »

I really wish you did take pictures, specifically of the flange and exhaust manifold, pertaining to the locations of the bolts that have to removed.

If you could give me any clarity behind this, I will be one step closer to removing this engine.

volvo850fi
Posts: 1
Joined: 24 December 2020
Year and Model: 1995
Location: Sipoo/Finland

Post by volvo850fi »

Hi,

I am trying to swap v70 mk1 b5252s with auto tranny to my older 850 b5252s with auto tranny. What I have read from above, did I understand correctly that I should swap the carburator (different types) and ingnition system (different type as well) and the tranny from old engine to new one to be sure that I can make my car run after swap? Someone please confirm?!

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