crazy notion about piston rings/pistons

charlotte001 · Aug 25th, 2009, 00:51

This generates from a chat in the pub: It has been suggested that the piston rings can be replaced by removal of the pistons with the engine still in the car ! I know it can be done on some vehicles but I have never read that it can be done on the 800 series engine I dont even think it could be done on my 760 or 740 or 240 for that matter. I'm guessing there would need to be some way of sticking the bearings to the connecting rods or to the crank as the piston was dropped back. I would say it would be difficult if the bores needed honing as the metal shards would cover the crank

Maybe someone here knows different. Think the person was a touch drunk and spouting rubbish as is normal down the pub.

FCPGroton · Aug 25th, 2009, 14:32

I know for a fact that is can't be done on the red block engines because the subframe that the engine sits on is in the way. As for the whiteblock 5 cylinder engines, It would be tough to get the oil pan out, but it is possible. I still don't think it is a good way to do it and it would probably be more work then just dropping the motor out the bottom with the sub frame.

thealchemyst · Aug 25th, 2009, 19:07

ive done this on the ford cvh engine its a piece of p!ss on that. but as you will have to take the manifolds and head off and the sump etc it would be easier and probably quicker to take the whole (engine box combo) lot out and take the engine to pieces outside the car plus if youve got it out allready and it needs a rebore or hone or faceing youve allready got it out!

charlotte001 · Aug 25th, 2009, 19:18

It was just an idea that was put to me in the pub, like they do, I have no intention of pulling the pistons out of my engine ill let it simply fail gracefully in another 200k

dustyspa · Oct 11th, 2009, 05:37

One of two things is my option. Grab another engine from a U-pull it or send it out to the machine shop and hope I have a good combination on selecting parts to make it a stronger engine.
Marvelous!!! OUCH!

Aug 25th, 2009, 00:51	#1
charlotte001 Premier Member Last Online: Jul 26th, 2012 11:13 Join Date: Jul 2009 Location: norwich	crazy notion about piston rings/pistons This generates from a chat in the pub: It has been suggested that the piston rings can be replaced by removal of the pistons with the engine still in the car ! I know it can be done on some vehicles but I have never read that it can be done on the 800 series engine I dont even think it could be done on my 760 or 740 or 240 for that matter. I'm guessing there would need to be some way of sticking the bearings to the connecting rods or to the crank as the piston was dropped back. I would say it would be difficult if the bores needed honing as the metal shards would cover the crank Maybe someone here knows different. Think the person was a touch drunk and spouting rubbish as is normal down the pub. __________________ Previous Volvos:850 GLT 2.5 20V Auto Saloon Silver. 1997 850 T-5 Auto Estate Nautic Blue Chipped ECU, V70 TCV, Carbon Cased Filter, 17inch alloys, Rattling Engine masking the suspension rattles. Engine doesn't rattle anymore

Aug 25th, 2009, 14:32	#2
FCPGroton Trader Last Online: Nov 29th, 2015 20:12 Join Date: Jun 2009 Location: Old Saybrook, CT	I know for a fact that is can't be done on the red block engines because the subframe that the engine sits on is in the way. As for the whiteblock 5 cylinder engines, It would be tough to get the oil pan out, but it is possible. I still don't think it is a good way to do it and it would probably be more work then just dropping the motor out the bottom with the sub frame. __________________ FCP Euro Andrew Owendoff Communications Facilitator +1.877.634.0063 Get 10% off your order, use coupon code VOLVOFORUMUK : FCP Euro Official Car Parts Website <- Click

Aug 25th, 2009, 19:07	#3
thealchemyst Master Member Last Online: Aug 22nd, 2018 20:57 Join Date: Apr 2009 Location: Coalville/Leicestershire	ive done this on the ford cvh engine its a piece of p!ss on that. but as you will have to take the manifolds and head off and the sump etc it would be easier and probably quicker to take the whole (engine box combo) lot out and take the engine to pieces outside the car plus if youve got it out allready and it needs a rebore or hone or faceing youve allready got it out! __________________ 1995 850 t5 glt estate purple,FK-40mm,stainless exhaust polybushed,wilwood4pot+s60r discs,mbc,019 battery,18" c30 alloys,michelin pilots,silicone hoses,braided brake lines,HID's,ipd track swaybars 25+mpg :0) @Prescott Hillclimb

Aug 25th, 2009, 19:18	#4
charlotte001 Premier Member Last Online: Jul 26th, 2012 11:13 Join Date: Jul 2009 Location: norwich	pistons It was just an idea that was put to me in the pub, like they do, I have no intention of pulling the pistons out of my engine ill let it simply fail gracefully in another 200k __________________ Previous Volvos:850 GLT 2.5 20V Auto Saloon Silver. 1997 850 T-5 Auto Estate Nautic Blue Chipped ECU, V70 TCV, Carbon Cased Filter, 17inch alloys, Rattling Engine masking the suspension rattles. Engine doesn't rattle anymore

Oct 11th, 2009, 05:37	#5
dustyspa New Member Last Online: Oct 20th, 2009 06:49 Join Date: Oct 2009 Location: Pittsburgh	Thanks for the heads up One of two things is my option. Grab another engine from a U-pull it or send it out to the machine shop and hope I have a good combination on selecting parts to make it a stronger engine. Marvelous!!! OUCH!

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