motoSycho 690 Posted May 29, 2020 It's a happening thing! 1000 klm round trip and home with the motor and another disc brake diff. And picked up the head and had my flywheel machined today as well! Turns out the head has larger inlet valves in it as well. No idea why. I just sat the roller rockers on there for the photo. It's home! I've now got this one out of an XG ute. And I also have another out of a V8 XE panel van. 2 Outback Jack and deankxf reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted May 29, 2020 So this motor is obviously already together. But I am going to pull it apart again so I can double check everything and so I have a better idea of how it all works. Any recommendations on a head gasket? And is there is a better rear seal option over the rope jobbie? Share this post Link to post Share on other sites
deankxf 20,231 Posted May 29, 2020 i don't think you can do anything about the seal, but there'd be better head gaskets.. i'd ask @ando76 because he's into more street related engines with some grunt Share this post Link to post Share on other sites
Banno 479 Posted May 29, 2020 You can use a 2 piece seal from a Windsor 302 motor to replace the rope seal. Can’t recall part number but do a google search should come up with it. Search the old xfalcon site will have it. Just have to grind down the pin in the rear mains cap to do it.Sent from my iPhone using Tapatalk 2 gerg and motoSycho reacted to this Share this post Link to post Share on other sites
bear351c 10,260 Posted May 29, 2020 MLS head gaskets seem to be the go. (Multi Layer Steel) 1 motoSycho reacted to this Share this post Link to post Share on other sites
ando76 4,354 Posted May 29, 2020 Neo 2 piece Windsor rear main seal is the go. As Banno said, just gotta get rid of the old retaining spike for the rope seal. A small pin punch knocks it out. As to head gaskets, just stick to the $55 durapro units. They seal just fine. Bad tune kills headgaskets more so than the material they are made of. I use them in 12:1 comp endurance Motorsport engines and they survive just fine. 3 deankxf, gerg and motoSycho reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted May 30, 2020 Thanks guys, got a Durapro gasket set here, so good to go, and I'll order in a 302 Windsor rear main and swap the rope seal out. Ordered a rubber rocker cover gasket in on Thursday, so pretty much good to put it all together. Pulling the motor and box out of the ute today so I can get everything prepped and setup for the new motor to go in. Share this post Link to post Share on other sites
motoSycho 690 Posted May 30, 2020 Didn't take anywhere near as long this time to pull the motor and box! Can I still run a PCV valve using the alloy EFI cover? I'll pull the box off tomorrow and rob what I need off the motor. Hopefully get the new motor finished and in over the next week or so (due to a shitty roster run) Share this post Link to post Share on other sites
deankxf 20,231 Posted May 30, 2020 3 minutes ago, motoSycho said: Can I still run a PCV valve using the alloy EFI cover? yes, theres a hose type fitting in the rocker cover around the middle. just put a hose inline with pcv valve in it 3 gerg, bear351c and motoSycho reacted to this Share this post Link to post Share on other sites
bear351c 10,260 Posted May 31, 2020 Don't get tempted to block it off, always run a PCV. 2 motoSycho and deankxf reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted May 31, 2020 Thanks Dean. 1 hour ago, bear351c said: Don't get tempted to block it off, always run a PCV. Yep, I'll run one. Just ordered a new one. 1 deankxf reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted May 31, 2020 Top end is on and it all does what it should! So had a closer look and this is an 83 block. The original motor out of my ute is an 84, (1990 build ute) and it looks like it has a rubber rear main in it. It also has slightly bigger bolts holding the flywheel on. 1 dex reacted to this Share this post Link to post Share on other sites
deankxf 20,231 Posted May 31, 2020 yeah there's 3 different rear seals cant remember the XE type casting numer, leaded XF had 84DA block(number is near the coil, cast into it) has the first one piece seal, 86DA has the same size as the E series, and has been people fitting E series cranks to crossflows, supposedly better balanced.. (although, i'm fairly sure SLY250 is still crossflow? ) 1 motoSycho reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted May 31, 2020 I thought all Ford flywheel bolts, V8 or 6 up until very late crossflow were 7/16 UNF then M10 x1.25 after that. Strange that your earlier one had smaller bolts againSent from my CPH1607 using Tapatalk Share this post Link to post Share on other sites
motoSycho 690 Posted June 1, 2020 5 hours ago, gerg said: I thought all Ford flywheel bolts, V8 or 6 up until very late crossflow were 7/16 UNF then M10 x1.25 after that. Strange that your earlier one had smaller bolts again Sent from my CPH1607 using Tapatalk The original motor out of the ute has the M10 and the one I am putting in now has the 7/16. I've only got two of the 7/16 bolts, I'll have to run into town and get some new ones. Back into a particularly shitty roster run at work, so only going to get a day here and there to get it together and back into the ute. Hopefully aim to get it in on the 18th! 1 gerg reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted June 1, 2020 OK that makes sense. Yours must have been a late XF with the metric EA crank Sent from my CPH1607 using Tapatalk 1 motoSycho reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted June 4, 2020 Sigh. I went to put the hardened dizzy gear on,,,,, and it is too big. It is the Crow Cams DG2A .530", which is supposed to be for the 250 Crossy dizzy. But both of the dizzys I have out of 1990 motors have the smaller shaft, which is a DG2 .490" gear! What the? Anyway, organising the right one. Share this post Link to post Share on other sites
deankxf 20,231 Posted June 4, 2020 58 minutes ago, motoSycho said: Sigh. I went to put the hardened dizzy gear on,,,,, and it is too big. It is the Crow Cams DG2A .530", which is supposed to be for the 250 Crossy dizzy. But both of the dizzys I have out of 1990 motors have the smaller shaft, which is a DG2 .490" gear! What the? Anyway, organising the right one. if the hole size is too big, it's for the points dizzy upto XD cast iron head(or XC) DG2 is what's needed for alloy head blocks to be honest, i've never heard of the DG2A gear, because almost no one plays with the iron head motor. its a similar story for the clevo, so you can't put a points dizzy in a later block. 1 motoSycho reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted June 4, 2020 Yeah I screwed up and got the wrong one. Should be able to exchange it. So changed my mind, again, and decided to go back to Plan 557 and strip the motor down and put it back together. The oil coating bits of it felt a bit gritty in spots, like it had got dusty at some stage. It will bug the crap out of me if I don't pull it apart and give it a good clean. I checked the pushrods for straightness etc and they were all good. Ok to reuse, or should I go new ones? Share this post Link to post Share on other sites
bear351c 10,260 Posted June 4, 2020 Pushrods will be fine, if they're all straight. Roll them on a good flat surface (like the kitchen cupboard) wait til the Missus is out. ! Or stick one end in the cordless drill and spin them up slowly. 2 gerg and motoSycho reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted June 8, 2020 Wow, does not take long at all to pull one of these apart! Glad I did, the plate that retains the cam was broken. Lucky I have 3 other motors here to pinch another one from. That's it??? Got to love old motors. I'll roll this out and give it a good going over and clean, and then give the bores a hone and start putting it back together. Rear seal won't be here til later in the week though. Also picked up a 4 barrel manifold for it, so I'll be hunting for a 465 Holley now. 1 deankxf reacted to this Share this post Link to post Share on other sites
deankxf 20,231 Posted June 8, 2020 are you sure the 465 holley will suit? i think i remember @gerg and @CHESTNUTXE having a discussion about why 4 barrels are rated different to the 2 barrel Share this post Link to post Share on other sites
gerg 10,871 Posted June 8, 2020 are you sure the 465 holley will suit? i think i remember [mention=244]gerg[/mention] and [mention=7196]CHESTNUTXE[/mention] having a discussion about why 4 barrels are rated different to the 2 barrelYep, spot on Deaner 2 barrels are not considered performance carbies, so are flow rated on a scale using twice as much vacuum (restriction) as 4-barrels are; 3" Hg vs 1.5". So to get a 350 or a 500 to flow their respective amounts, they just suck air through them twice as hard as they would do with a 4-barrel. The true flow of a 350 on the 4-barrel scale is only about 280, which is about what a 34ADM Webber is capable of. A 500 Holley is more like 390. I think a 465 would be an ideal size for a warm 250. It would actually be more economical to use once properly tuned. Going up to 600 would be overkill on a Streeter. Sent from my CPH1607 using Tapatalk 2 motoSycho and deankxf reacted to this Share this post Link to post Share on other sites
motoSycho 690 Posted June 8, 2020 Yep I'm just going on advice and tips from guys here. 465 seems to be a popular size for a crossy. I just need to find a decent one now. Pulled the rooted motor apart to pinch the sump and some other bits, and sweet Jeebus what a mess. The oil pickup was clogged up with strips of silastic and the sump was full of loose bits of silastic as well! No wonder it was fucked ! I gave this thing an oil change etc. when I first got it as well. The oil that came out of it didn't look that bad! And I have done sweet fuck all Ks on the new oil! I wish I had taken a photo of the sump before I gave it a clean. 2 gerg and deankxf reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted June 8, 2020 Wow looks like the previous owner took the "no oil change" challenge. The silicone's a shocker tooSent from my CPH1607 using Tapatalk 1 motoSycho reacted to this Share this post Link to post Share on other sites