Discussion
HI lads need some help car been up on stands 18 months ,had heart prob ,getting ready for summer ,checking every thing over ,add some water it was about 1" from the top car is pre serp 500 griff it says inthe bible 1 and half inches from the top cars been running great past 18 months till to day when i added water it is leaking quite bad seems to be coming from 2 places at the back of the engine and 3rd of the way up the gear box what i am hoping is that its just a core plug or water hose i have checked the bible but it doe,s not say if there are any doe, anyone know if there is a core plug /hose at the back that cxould have split i have looked at my rocker cover top seems good no mayo checked dip stick to thats good been underneath watet is running dow from top of engine ,poss middle can,t see much but swile tank is full any help or advice would be great many thanks in advance paul
Thanks colin, quinny i have been waiting about 18 months to drive my griff now this happens some times i think if it is running nice its best leave it alone can you tell me if it is the hose can i get at them by removing the plemium or are they futher down than that thanks again paul
Edited by paul2000 on Sunday 15th March 14:29
paul2000 said:
Thanks colin, quinny i have been waiting about 18 months to drive my griff now this happens some times i think if it is running nice its best leave it alone can you tell me if it is the hose can i get at them by removing the plemium or are they futher down than that thanks again paul
There are 2 metal pipes that run under the arch of the inlet manifold, the heater hoses just connect to them (push on with hose clips to secure). Unusual to spring a leak round there TBH. If they are the source the inlet valley gasket will be very wet (overflowing down the bellhousing)Edited by paul2000 on Sunday 15th March 14:29
You should have nice easy access to them with the plenum top & trumpet base removed. Stick some kitchen roll down there first to see if the valley gasket is wet though?
HI spend water is running down the bellhiousing drivers side also about a foot in front on the other side i am sure it is not a gasket as it is to far back i will try and have alook tomorrow as i am not sure if i shoul re move the plenium myself as i might not put it back again i will look at the bible see if it not to hard to do and take it from there thanks again paul
thanks for the help lads it looks like i will have to get my mech , friend over to have alook , oh spend it is water and it is running down from the top of the bellhouseing sorry i can, be more helpful but i can,t see much as it is dark and water keeps running all over me thanks again paul
Hi lads had alook again tryed to folloe pipes but can,t see as i had new exhaust system not long ago and they are 3" asto 2and ahalf it looks like it is most likely core plugs or hose keeping fingers crossed it is hose thanks again ,oh i have done the fuel hose last year
Edited by paul2000 on Sunday 15th March 16:06
If the cars been garaged out of freezing weather its got to be perished hose pipes.. Core plugs are only pushed out by the water turning to ice then pushing the plugs out,,check pipes for heater matixs... The worst case i could be rusted core plug down to running engine with out enough antifreeze........Good luck & hope its pipes GOLDIE
I don't know if it is the same but on the V8S (pre serp) those 2 hoses coming of the back of the manifold have a small bore bleed hose linking them together before they go through the bulkhead to the heater.
When I dismantled my car that small bore piece of hose was completely rotten, far worse than anything else on the car.
It was located right at the back of the engine stuffed down the back near the valley.
Pic below, manifold connection on left, heater on right (I think maybe it heads off in a different direction on the griff?)
edited to add:
Those 2 rubber hoses at the front (pic earlier in thread) can be done without removing anything.
One of my metal pipes under the manifold is looking a bit tired - the end near the bulkhead has a some rot where it was inside the rubber hose, but you can't really inspect these without having the manifold off.
When I dismantled my car that small bore piece of hose was completely rotten, far worse than anything else on the car.
It was located right at the back of the engine stuffed down the back near the valley.
Pic below, manifold connection on left, heater on right (I think maybe it heads off in a different direction on the griff?)
edited to add:
Those 2 rubber hoses at the front (pic earlier in thread) can be done without removing anything.
One of my metal pipes under the manifold is looking a bit tired - the end near the bulkhead has a some rot where it was inside the rubber hose, but you can't really inspect these without having the manifold off.
Edited by Barkychoc on Sunday 15th March 18:04
Thats the infamous bypass Chris, Without it the heater reg valve is not strong enough to shut 
and when heater is closed theoretically all the head flow goes through it before the stat opens. I think quoted experiences of drilling bigger bypasses in the stats are very related to that 'little' devil.
On the Chims it is in the footwell, and the Griffs IIRC. Serps have been reported not to have them (and I've seen a few where I couldn't find them?) which would bother me TBH.
and when heater is closed theoretically all the head flow goes through it before the stat opens. I think quoted experiences of drilling bigger bypasses in the stats are very related to that 'little' devil.On the Chims it is in the footwell, and the Griffs IIRC. Serps have been reported not to have them (and I've seen a few where I couldn't find them?) which would bother me TBH.
Replacing those two hoses in the picture is very do-able if you use silicone hoses. I've just changed both of them on my Griff without much major grief. Getting the old hoses was the hardest part actually.
My hoses came as part of a full kit from ACT. They might sell odd ones if you give them a ring.
My hoses came as part of a full kit from ACT. They might sell odd ones if you give them a ring.
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