Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: langley on August 18, 2013, 09:33:23 AM

Title: wj v8 engine head rebuild
Post by: langley on August 18, 2013, 09:33:23 AM
Hi. Im seriojsly interested In a wj with a head issue.

Im a competent mechanic but no experience of the wj v8 engines.

So. How much is involved in  head change. What sort of time would it take and aee there Ny issues I should be aware of when doing it.

Hope its positive its a rather legendary jeep...
Title: Re: wj v8 engine head rebuild
Post by: Dutch on August 18, 2013, 09:48:25 AM
Jay has done his not too long ago IIRC.

I'm sure he'll chime in  :003:
Title: Re: wj v8 engine head rebuild
Post by: Dutch on August 18, 2013, 09:49:17 AM
a wj with a head issue.

So has the owner  :hysterical:
Title: Re: wj v8 engine head rebuild
Post by: langley on August 18, 2013, 09:55:02 AM
Haha.

Just hoping its not a complete car strip down job
Title: Re: wj v8 engine head rebuild
Post by: Shaggy on August 18, 2013, 10:03:29 AM
If it's Jedi's your interested in, there is a spare set of heads with it & the top end gasket set!
I have never had chance to compression test it, we have just gone on what the stealer said, I am putting the rear suspension back together today so if I get chance I will test it & report my findings, cos' I must admit I aren't 100% convinced it's a valve seat issue till I see the results for myself!
As for the head change, I have never done one & Bubba & Jhay are the people you need to speak to, from the research I did in to it, it's lpg out of the way, time it up chains off & then either pull them tight (the dodge ram way) or remove the timing chest (the jeep way) heads off & rebuild is reverse of removal. They aren't the easiest but well in the scope of a competent mechanic.
The only reason I aren't doing Jedi's is a time issue! There isn't anything to hide with it, he needs it out of the way as he has replaced it already & his cobra is about to put in an appearance too meaning he would have 4 vehicles at home plus the wifes car, he would be heading for divorce!! :icon_winkle:
It's a no brainer really he is supplying all the parts to repair it (if it is a valve seat) repaired it's a 5 grand truck!!
Title: Re: wj v8 engine head rebuild
Post by: langley on August 18, 2013, 10:11:35 AM
It is indeed said beastie.

Ok sounds good. Just interested in the mileage now an foragibg for some extra money
Title: Re: wj v8 engine head rebuild
Post by: Shaggy on August 18, 2013, 10:13:47 AM
I'm going to his shortly to put the a frame jonny joint back on pm either of us your number & we will give you a bell about the truck & we will talk you through it! :icon_biggrin:
Title: Re: wj v8 engine head rebuild
Post by: donk498 on August 18, 2013, 10:25:19 AM
I helped jay do his head,  it's easy enough, did on his drive. There's a few fiddly bolts to get at but its mostly just removing enough of the ancillaries to get access. You could do it in a weekend easily.
Title: Re: wj v8 engine head rebuild
Post by: jay140285 on August 19, 2013, 10:13:22 PM
Yep its not to hard. I am not the worlds greatest mechanic but not afraid to have a go.

I think Jedi's has low compression on No4, mine was no compression as the valve seat completely dislodged.

Took 2 weekends in the freezing cold on the drive.

I have the Jeep workshop manual that I can email over if you need it. Bubba diagnosed mine and between him and Donk gave me the confidence to strip it and rebuild.