PDA

View Full Version : Engine rebuild ???



oblark
Sunday 23rd December 2012, 19:04
Got bored this afternoon so I took my old engine apart. The main and big end brgs look good with little wear.

But the bores do have some wear in them and they is signs of oil getting past the compression rings.
The max gap on the piston rings in the bore should be 0.20mm - 0.40mm and mine are 0.60mm so the bores are worn.
As the pistons are "D" piston the bores should be 81.01mm - 81.02mm

My question is this where can I get either 0.5mm or 1.0mm oversize piston and rings OR do I just fit new piston rings ??

Jamest5r
Sunday 23rd December 2012, 19:14
Get it bored out to 81.2mm or 81.4 mm then you can fit volvo (melhe) pistons, good for 400bhp, and cheaper than 81.5 forged one's.

oblark
Sunday 23rd December 2012, 19:25
Get it bored out to 81.2mm or 81.4 mm then you can fit volvo (melhe) pistons, good for 400bhp, and cheaper than 81.5 forged one's.

Wheres the best place to get these oversize pistons from ???

Jamest5r
Sunday 23rd December 2012, 19:29
Wheres the best place to get these oversize pistons from ???

Volvo stealer's lol, cant honestly remember what i paid but less than forged prices, i can get about 15% discount on trade at my local Paul Rigby Stealers or try Rufe.

oblark
Sunday 23rd December 2012, 19:36
Volvo stealer's lol, cant honestly remember what i paid but less than forged prices, i can get about 15% discount on trade at my local Paul Rigby Stealers or try Rufe.

Thanks :smile:

t_ozan_uk@yahoo.co.uk
Monday 4th February 2013, 23:05
I am based in Leeds my 1995 850 T5 auto petrol engine is leaking oil from the engine. I don't know where. Is there anyone who would be interested to fix it at a reasonable price I don't mind replacing the engine with a newer one either if it is cheaper alternative. Thanks.

merc85
Monday 4th February 2013, 23:10
I am based in Leeds my 1995 850 T5 auto petrol engine is leaking oil from the engine. I don't know where. Is there anyone who would be interested to fix it at a reasonable price I don't mind replacing the engine with a newer one either if it is cheaper alternative. Thanks.

could be simple like a turbo return, or a headache like a rear main, (Gearbox off job)

Kingsford G
Monday 4th February 2013, 23:16
What about rods?Cheaper forged or s60r ones?Is the stock crank good for low down high boost ?

merc85
Monday 4th February 2013, 23:18
Stock crank good for 400bhp ive heard. s60 rods? arnt they a different length?

Kingsford G
Monday 4th February 2013, 23:22
Stock crank good for 400bhp ive heard. s60 rods? arnt they a different length?

Not sure about the length.I wonder if u can use the short block of 2.4 t5 and pre me7 head?