|
Post by harvey on Apr 28, 2014 22:45:41 GMT
Harvey, as this is a later engine should it still have the baffle plates? The baffle plates go with the rocker covers. Later engines have different rocker covers, so don't have them.
|
|
|
Post by Welsh Warlock on Apr 28, 2014 23:02:47 GMT
ISTR that the engine came with different rocker covers on and I swapped them for my P5 ones as I had had them powder coated.
I may have the baffles somewhere. Is it worth refitting them if I can find them?
|
|
|
Post by harvey on Apr 28, 2014 23:02:59 GMT
That looks like it doesn't have the correct front head bolt. As far as I remember that bolt has a stud on the top for the engine stabilizer bracket. It may be a trick of the camera, but I'm not sure that water pump pulley is on the right way around either.
|
|
|
Post by harvey on Apr 28, 2014 23:04:03 GMT
Before removing the pistons mark all of them to the bore and the front of the engine.
|
|
|
Post by harvey on Apr 28, 2014 23:07:08 GMT
I may have the baffles somewhere. Is it worth refitting them if I can find them? Rover thought they were worth fitting, so who am I to argue. I'd fit them.
|
|
|
Post by johnwp5bcoupe on Apr 29, 2014 5:55:18 GMT
I may have the baffles somewhere. Is it worth refitting them if I can find them? Rover thought they were worth fitting, so who am I to argue. I'd fit them. Extra weight alan I didn't fit them like harvey couldn't see the point of them Hawkeye may be right about the pulley! Good luck as I said you will sort the problem
|
|
|
Post by Welsh Warlock on Apr 29, 2014 8:42:04 GMT
That looks like it doesn't have the correct front head bolt. As far as I remember that bolt has a stud on the top for the engine stabilizer bracket. It may be a trick of the camera, but I'm not sure that water pump pulley is on the right way around either. The stabilier bracket bolts to the two bolts on the front of the head. On mine it had a cut out to avoid the head of the(rusty) head bolt. I assumed this is standard as it is the original stabiliser. I'll do a pic of mine or have a look in the parts manual this evening. The car has only been test run in the garage with the water pump pulley fitted that way around. However it seems to line up best with the crankshaft pulley and (non original) alternator that way around. Again, I'll have a closer look tonight. John, this is why I value Harvey's input so much. He has an intimate knowledge of these engines and a keen eye to say the least. There really is no substitute for experience. (ETA: Please don't take that the wrong way. I know you have a wealth of engineering experience too and I value your input). My friend Ben who works for Ilmor (and previously Judd and HKS) building development engines says he has never stripped an RV8 and is intersted so he's coming over this weekend and will watch over my shoulder and help me check everything as I go. I will mark up everything as I go Harvey but I hadn't thought of the piston direction so thanks for that. I'll try and take lots of pics as well. I wonder if the baffle plates in the rockers were there to direct the oil splash to the required areas or to mute the noise?
|
|
|
Post by harvey on Apr 29, 2014 12:42:13 GMT
I wonder if the baffle plates in the rockers were there to direct the oil splash to the required areas or to mute the noise? They are to stop oil splash being drawn directly up the breather pipes.
|
|
|
Post by harvey on Apr 29, 2014 12:44:22 GMT
I can't see any sign of the engine breather pipe at the back of the block.
|
|
|
Post by harvey on Apr 29, 2014 12:46:50 GMT
That looks like an ACR alternator bracket, which was late P6B only, so if you've changed the alternator from an 11AC, to something that isn't an ACR, then that could put the pulleys out of line.
|
|
|
Post by Welsh Warlock on Apr 29, 2014 13:21:01 GMT
d**n you are good Harvey.
OK, I'll see if I can find the baffle plates. I read Cyf's old thread and it reminded me what they look like.
The later blocks don't have the rear engine breather IIRC. That's the one that usually goes into the top of the air filter housing isn't it? The hole is blanked off in the casting.
IIRC I think I used the alternator mounting bracket from the P5B engine and I fitted a modern alternator (Rover/Daf). The alternator has a bush which makes it back/forward adjustable. The adjustment wasn't enough so I had the front pulley (which was very wide) machined down) so I could get the belt lined it up with the crankshaft and alternator pulleys.
I'll revisit the fittings when I prepare to reinstall it.
Does it matter if the water pump pulley is fitted back to front if it lines up that way? I noticed the other night that it only just clears the water pump housing.
|
|
|
Post by Welsh Warlock on Apr 29, 2014 13:33:06 GMT
That looks like it doesn't have the correct front head bolt. As far as I remember that bolt has a stud on the top for the engine stabilizer bracket. It may be a trick of the camera, but I'm not sure that water pump pulley is on the right way around either. Having looked through Cyf's excellent thread I see what you mean about the bolt and the stabiliser bracket. It seems someone may have butchered mine prior to me getting the car as I was always under the impression that the stabiliser only located on the two bolts at the front of the block/head. anyone got a spare one? Can you buy a new headbolt with the stud on it?
|
|
|
Post by harvey on Apr 29, 2014 13:35:04 GMT
The later blocks don't have the rear engine breather IIRC. That's the one that usually goes into the top of the air filter housing isn't it? The hole is blanked off in the casting. Later blocks don't have it because the pipe is plumbed into the rocker cover instead. You don't have the pipe on the rocker cover because you have the P5B rocker covers, so you need to punch out the core plug and replace it with the metal pipe. Then run the pipe from there, through a fuel filter, to the pipe on the air cleaner. IIRC I think I used the alternator mounting bracket from the P5B engine and I fitted a modern alternator (Rover/Daf). The alternator has a bush which makes it back/forward adjustable. The adjustment wasn't enough so I had the front pulley (which was very wide) machined down) so I could get the belt lined it up with the crankshaft and alternator pulleys. As I said, it doesn't look like the P5B alternator bracket, more like the P6B one for the ACR alternator, because the front mount sticks out further from the engine. Does it matter if the water pump pulley is fitted back to front if it lines up that way? I noticed the other night that it only just clears the water pump housing. Something's wrong if you need to put the waterpump pulley on the wrong way around. I can see why it needs to be so to match the previously mentioned alternator, but if it lines up with the crank pulley in that configuration, the the crank pulley must be wrong. (In other words, not a P5B one). Personally I'd get the water pump pulley on the correct way around. Adjust the alternator as required so it lines up with the waterpump pulley, and then look at why the crank pulley is out of line with the two of those, and correct that.
|
|
|
Post by harvey on Apr 29, 2014 13:36:44 GMT
Can you buy a new headbolt with the stud on it? It's possible I may have a used one.
|
|
|
Post by Welsh Warlock on Apr 29, 2014 13:54:35 GMT
Thanks Harvey.
I'll check the old head bolts I have from my original engine. there may be one in there. Failing that I might take you up on your offer as I can't see any for sale at the usual outlets or ebay.
Ehen you say run the rear breather through a fuel filter, do you mean flame trap like the grey one that fit into the other pipes from the rockers or should it actually be a fuel filter? Id it a smaller diameter tube - sorry can't remember as its a while since I had one fitted. Should I have been suffering with crank case pressure problems without the breather?
|
|
|
Post by harvey on Apr 29, 2014 14:03:45 GMT
Ehen you say run the rear breather through a fuel filter, do you mean flame trap like the grey one that fit into the other pipes from the rockers or should it actually be a fuel filter? Id it a smaller diameter tube - sorry can't remember as its a while since I had one fitted. Should I have been suffering with crank case pressure problems without the breather? It should be run through the same filter as the petrol filter on the front of the engine, only fitted the other way up. Without it you will get more crankcase pressure than with it.
|
|
|
Post by Welsh Warlock on Apr 29, 2014 14:10:24 GMT
Rings a bell now I see the filter sits on a short piece on rear of the engine housing and he long pipe comes over the top of the air filter.
I can remove the metal pipe from my original block.
Thanks
|
|
|
Post by johnwp5bcoupe on Apr 29, 2014 14:33:42 GMT
Can you buy a new headbolt with the stud on it? It's possible I may have a used one. Me tooooooooooooooooooo
|
|
|
Post by johnwp5bcoupe on Apr 29, 2014 14:53:30 GMT
Ehen you say run the rear breather through a fuel filter, do you mean flame trap like the grey one that fit into the other pipes from the rockers or should it actually be a fuel filter? Id it a smaller diameter tube - sorry can't remember as its a while since I had one fitted. Should I have been suffering with crank case pressure problems without the breather? It should be run through the same filter as the petrol filter on the front of the engine, only fitted the other way up. Without it you will get more crankcase pressure than with it.
|
|
|
Post by Welsh Warlock on Apr 29, 2014 14:57:15 GMT
Do either of you perchance have a spare stabiliser bracket?
|
|
|
Post by harvey on Apr 29, 2014 14:59:11 GMT
Do either of you perchance have a spare stabiliser bracket? I'm afraid not.
|
|
|
Post by Welsh Warlock on Apr 29, 2014 14:59:05 GMT
It's all coming back to me now (as the skunk said when the wind changed direction!)
I have the additional 'holder' for the filter as I saw it last night in a box of bits when I was layong out the gaskets.
|
|
|
Post by johnwp5bcoupe on Apr 29, 2014 15:01:42 GMT
Do either of you perchance have a spare stabiliser bracket? I think so
|
|
|
Post by Welsh Warlock on Apr 29, 2014 15:04:36 GMT
I wonder hom many more bits I'll need before I'm finished?
|
|
|
Post by guidedog on Apr 29, 2014 15:43:45 GMT
Sorry to interrupt gentlemen. With reference to the water pump. I recently fitted a new pump on my P5B and it is fitted the same way as Alan's.I have all original alternator and crank, they line up perfectly..I hope am right I really don't want to knock the teacher. As we all know the pulley has a large recess an one side this can throw the fan belt out by 15mm. If I am wrong Harvey I apologise in advance.
|
|