replacing piston rings...

Big lumps of metals and spanners.

Moderators: User administrators, Moderators

Locked
daydream-believer
Registered user
Posts: 1
Joined: 28 Jan 2006, 22:27
80-90 Mem No: 2481
Location: Gloucestershire

replacing piston rings...

Post by daydream-believer »

My short question (in case you get board of reading my tale of woe!) is:

How much work/time is involved in replacing piston rings, compared to swapping a complete engine.. ??


Tale of Woe follows:

I recently replaced my original 1.6 NA diesel engine which died with big end bearing and piston rings problems etc. it has been replaced by a 1Y 1.9 NA diesel from a Golf. In the last week I have done about 80 miles in half a dozen short journeys and she goes much better and sounds lovely..

However, on the way home today the oil light started flashing, so stopped to have a look to find the oil filler cap (apparently) blown off and some oil lost... something that happened to my 1.6 a couple of times in its last month. Searching all the forums looks like the cause of this is often high crankcase pressure caused by worn piston rings :(

Am going to get a compression test sorted out, but if it turns out this is the problem, I have to decide what to do...

The replacement engine came from a VW breakers with a 60 (or 90?) day guarentee so I can get them to replace it, but of course, I want to start using it and I am paying someone else (mechanically excellent friend) to do the work. So, I need to decide whether to go for another replacement, or ask for some money back towards repairing this one.. any opinions/advice appreciated.

Many Thanks!
Jen.
Top
andysimpson
Registered user
Posts: 213
Joined: 19 Oct 2005, 21:15
80-90 Mem No: 0
Location: Chorley, Lancs

Post by andysimpson »

It will most likely need a rebore if there is excessive blow by, not really economical to repair if your paying someone else to do it.

Has the breathers been checked.
Top
camper
Registered user
Posts: 357
Joined: 30 Oct 2005, 20:26
80-90 Mem No: 1710
Location: Bookham Surrey

Post by camper »

I have had this problem i remember picking up an engine from a breaker but within 4 weeks it started blowing oil out of the rocker breather.I went back to the dealer who said as soon as there was a replacement engine they would let me no.I was so keen to get back on the road i stripped it down and put new crankshaft shells and oil controll rings.It worked for a while this was in the days of the ford anglia and minis.There was these rings that had a step on the top and a special oil control ring made by hepolite it worked only for a short while.If you want an opinion take the engine back and get them to change it even if you have to wait if there is not one in
Top
Locked

Return to “Mechanical”