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+--- Thread: Engine Questions (/showthread.php?tid=9626)
Engine Questions - c.gerrard - 08-01-2013
Just got a few questions that have still got me scratching my head.
1. First one, when picking my engine apart, noticed that only one cylinder has these hook shape attachments. I've got no idea, what they are/purpose/ why there is only two of them?
2. Cracked valve seats. Is it worth pumping money and effort into a head with cracks? I'm sure it will still work fine, just wondering if it would be worth sourcing a new head!
3. Removing HDI rods. From the comfort of my shed removing the rods was fine, but whilst Jonny and I were at the scrap yard the other day, we hit a bit of a problem. Does the crankshaft need to be removed to drop them out?
RE: Engine Questions - darrenjlobb - 09-01-2013
1 - There thrust bearings, take up side to side slop on the crank, there a wearing part / should be replaced ideally...They take side load from the clutch release bearing etc...
2 - I cant see any cracks on that head other than a few around the pre cups which is perfectly normal for a used head tbh..
3 - The rods will come out the top, might just be a bit tight getting rings past the "lip"
RE: Engine Questions - Jonny81191 - 09-01-2013
I wondered when this thread would surface...The cracks are between the valve seats, two of them on each cylinder..
And the rods won't come out of the top with the head still bolted on
RE: Engine Questions - Ruan - 09-01-2013
They ain't no cracks
That's the steel insert Peugeot put on later cylinder heads to STOP them cracking between the valve seats, earlier heads do not have those steel inserts and crack VERY easily between the seats...
If you can't get the head off, definitely a crank out job.
RE: Engine Questions - Piggy - 09-01-2013
concerns me a bit that he is rebuilding his engine but doesnt know what a thrust bearing is?!
RE: Engine Questions - darrenjlobb - 09-01-2013
Lol there not cracks....as Ruan said!
Why cant head come off?
RE: Engine Questions - londondan86 - 09-01-2013
(09-01-2013, 10:45 PM)Piggy1987 Wrote: concerns me a bit that he is rebuilding his engine but doesnt know what a thrust bearing is?!
Why? It's the best way to learn, get stuck in!
RE: Engine Questions - c.gerrard - 09-01-2013
Ok, cheers for the info!
The head can come off, just wondering if there was an easier way to save time/effort
(09-01-2013, 10:45 PM)Piggy1987 Wrote: concerns me a bit that he is rebuilding his engine but doesnt know what a thrust bearing is?!
Relax, one little bit I'm not sure on and it aint exactly obvious
RE: Engine Questions - Jonny81191 - 09-01-2013
(09-01-2013, 11:03 PM)c.gerrard Wrote: The head can come off, just wondering if there was an easier way to save time/effort
I reckon we'll be quicker dropping the 'box off, then flywheel and crank
RE: Engine Questions - samass - 09-01-2013
angle grinder.
RE: Engine Questions - Ruan - 09-01-2013
Head off is quicker... Seriously...
If it's a scrapyard, just go in with cutters a-blazin, snip everything to do it...
If you have any issues with the lip, you simply won't get them out the bottom, nothing to smash on, remember it's a sump off, oil pump off, main bolts out (FOOKING tight), conrod bolts out, crank out, oil squirters out, then yank them out the bottom with no way of being able to force from above...
Can't you get the whole engine?
Engine Questions - Jake - 09-01-2013
Me and ben got his rods / pistons out using the handle end of a rubber mallet (has a rubber handle too) and just tapped on the bottom of the rod and it Came out pretty easily.
Head off is definitely the easiest way to do it though.