Home > Maintenance & Mods (L322) > Engine gone - what to do ? |
|
|
Ningr Member Since: 20 Jun 2014 Location: Towcester Posts: 63 |
Johnboyaeiry, this is the dilemma exactly. I can go to several breakers that have a lump in a scrap / accident damaged car.
|
||
6th Feb 2016 10:34am |
|
miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
The 4.6 in the P38 can't be re-bored, but you can have the liner replaced, a friend of mine had a liner replaced on his. Firstly I would talk to an engine builder, someone who actually does the work themselves, to see if a new liner is possible. Then I'd be asking the question, do they strip engines or just machine them? If they are an engine builder, as opposed to a machine shop, then they should be able to do all the work to the engine. Whether they will remove the engine is a different question, but I'm sure that if they don't they'll know someone who will
|
||
6th Feb 2016 11:17am |
|
johnboyairey Member Since: 11 Jan 2013 Location: surrey Posts: 2032 |
From experience, I have had the chain guides fail, and I replaced them all and in situ. Yes, engine sounded dreadful. But there was no oil pressurisation. (I bought my Rangie with this problem, and had the gamble it could be fixed, and was a good deal!)
|
||
6th Feb 2016 11:58am |
|
dingg1 Member Since: 29 Jun 2013 Location: PORTUGAL Posts: 1340 |
best option
|
||
6th Feb 2016 12:06pm |
|
johnboyairey Member Since: 11 Jan 2013 Location: surrey Posts: 2032 |
The p38 4.6 is a totally different (dinosaur) rover engine, ally block, and the steel liners are changable, you can often just pull them out by just pouring hot water through them. As this was the engines weak point. Look for slipping liners, and 'top hat liner ' repairs. We are talking here about an aluminium block bmw 4.4 engine. With coated bores. Ive never heard of oversized pistons, replacement liners, for this engine. (M62tub44) but these days there may well be an aftermarket service.
|
||
6th Feb 2016 12:09pm |
|
miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
Unless they are using a chrome liner, which is very old tech and short lived, there must be a liner of some description in the block.
|
||
6th Feb 2016 12:42pm |
|
miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
they are a chemical liner
|
||
6th Feb 2016 12:55pm |
|
miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
http://engineengineering.co.uk/start/recon...448s2:981/
|
||
6th Feb 2016 1:03pm |
|
johnboyairey Member Since: 11 Jan 2013 Location: surrey Posts: 2032 |
There are some awful spelling inaccuracies on that professional site above...but sounds mostly factual, apart from the sport model rererences. |
||
6th Feb 2016 1:43pm |
|
johnboyairey Member Since: 11 Jan 2013 Location: surrey Posts: 2032 |
With reference to the old p38 engine, they do just come out, indeed, the engine was a poor design, It was over bored to 4.0 and 4.6, (same bore different crank..) and this made it high risk of cracking behind the liners, making either top hat 'heat fit' liners the only realistic solution, other than a new block. Seen here, you can have the p38 liners out, in a few minutes. And here This is the best reason to avoid any purchase of either the p38 v8 or the disco 2 v8. Sorry to be off topic, but clears up the removable liners doubt Last edited by johnboyairey on 7th Feb 2016 12:19am. Edited 1 time in total |
||
6th Feb 2016 1:56pm |
|
Ningr Member Since: 20 Jun 2014 Location: Towcester Posts: 63 |
johnboyaiery, wow i seem to have caused a liner debate ….
|
||
6th Feb 2016 4:34pm |
|
johnboyairey Member Since: 11 Jan 2013 Location: surrey Posts: 2032 |
A farmers engine in a pretty body.. Eh?
|
||
7th Feb 2016 12:32am |
|
johnboyairey Member Since: 11 Jan 2013 Location: surrey Posts: 2032 |
Just read up on this so called company. This from the disco3 site. http://www.disco3.co.uk/forum/topic105707.html So not really worth a look..... Bandits! I have heard so many dreadful stories of so called engine rebuilders. From the old exchange and mart pages, to the Internet days.... -they all use a steam cleaner and silver paint! Even the one on the webpage, has been sprayed! Why? Even the black bits are silver. |
||
7th Feb 2016 1:06am |
|
miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
Mate I was only trying to help, don't shoot the messenger
|
||
7th Feb 2016 2:03am |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis